* [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host
@ 2019-02-15 14:44 Daniel Berrange
2019-02-15 19:26 ` [Qemu-devel] [Bug 1816052] " Kris M
` (6 more replies)
0 siblings, 7 replies; 9+ messages in thread
From: Daniel Berrange @ 2019-02-15 14:44 UTC (permalink / raw)
To: qemu-devel
Public bug reported:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host, with
no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
** Affects: qemu
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
@ 2019-02-15 19:26 ` Kris M
2019-02-15 19:30 ` Kris M
` (5 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Kris M @ 2019-02-15 19:26 UTC (permalink / raw)
To: qemu-devel
Don't know if same but just noticed "no sound" unless I unplug and
replug headphones. If I boot with no headphones plugged in I get no
sound, but if I plug in headphones I get sound. Of course, then, if I
unplug headphones I still get sound. Something about plugging/unplugging
to the headphones jack wakes things up.
ThinkPad T530-2394-3J8, i5-3380M 2.9GHz, Dual boot (BIOS/MBR): Grub,
Ubuntu 18.10 / Win7 Pro x64 . 8GB(15GB/s), Sammy 250GB SSD. Fast!
4.19.0-13 kern and previous. current: I take all updates.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
2019-02-15 19:26 ` [Qemu-devel] [Bug 1816052] " Kris M
@ 2019-02-15 19:30 ` Kris M
2019-02-15 19:45 ` Jeremy Bicha
` (4 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Kris M @ 2019-02-15 19:30 UTC (permalink / raw)
To: qemu-devel
That was Ubuntu DD current on comment #1
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
2019-02-15 19:26 ` [Qemu-devel] [Bug 1816052] " Kris M
2019-02-15 19:30 ` Kris M
@ 2019-02-15 19:45 ` Jeremy Bicha
2019-02-19 5:47 ` Kris M
` (3 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Jeremy Bicha @ 2019-02-15 19:45 UTC (permalink / raw)
To: qemu-devel
Kris, your situation is completely different.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
` (2 preceding siblings ...)
2019-02-15 19:45 ` Jeremy Bicha
@ 2019-02-19 5:47 ` Kris M
2019-02-19 9:02 ` Gerd Hoffmann
` (2 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Kris M @ 2019-02-19 5:47 UTC (permalink / raw)
To: qemu-devel
I agree. Thanks. :)
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
` (3 preceding siblings ...)
2019-02-19 5:47 ` Kris M
@ 2019-02-19 9:02 ` Gerd Hoffmann
2019-02-25 3:14 ` Like Xu
2019-02-26 3:27 ` Like Xu
2019-04-24 5:18 ` Thomas Huth
6 siblings, 1 reply; 9+ messages in thread
From: Gerd Hoffmann @ 2019-02-19 9:02 UTC (permalink / raw)
To: qemu-devel
What happens if you remove "try-alsa" from the configure line?
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https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-19 9:02 ` Gerd Hoffmann
@ 2019-02-25 3:14 ` Like Xu
0 siblings, 0 replies; 9+ messages in thread
From: Like Xu @ 2019-02-25 3:14 UTC (permalink / raw)
To: Bug 1816052, qemu-devel
On 2019/2/19 17:02, Gerd Hoffmann wrote:
> What happens if you remove "try-alsa" from the configure line?
>
This issue could be fixed by passing "export QEMU_AUDIO_DRV=none" to
shell env when alsa support form host kernel is unavailable.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
` (4 preceding siblings ...)
2019-02-19 9:02 ` Gerd Hoffmann
@ 2019-02-26 3:27 ` Like Xu
2019-04-24 5:18 ` Thomas Huth
6 siblings, 0 replies; 9+ messages in thread
From: Like Xu @ 2019-02-26 3:27 UTC (permalink / raw)
To: qemu-devel
I would work around this issue
by applying "export QEMU_AUDIO_DRV=none" to shell before we run the qemu command.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
New
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Qemu-devel] [Bug 1816052] Re: qemu system emulator fails to start if no sound card is present on host
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
` (5 preceding siblings ...)
2019-02-26 3:27 ` Like Xu
@ 2019-04-24 5:18 ` Thomas Huth
6 siblings, 0 replies; 9+ messages in thread
From: Thomas Huth @ 2019-04-24 5:18 UTC (permalink / raw)
To: qemu-devel
** Changed in: qemu
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1816052
Title:
qemu system emulator fails to start if no sound card is present on
host
Status in QEMU:
Fix Released
Bug description:
A plain build from git master at
81dbcfa9e1d8bab3f7c4cc923c0b40cd666f374f on Fedora 29 x86_64 host,
with no options passed to configure.
Trying to launch QEMU on a host with no audio card present:
# ls /dev/snd/
seq timer
It will fail to initialize alsa and abort startup:
# qemu-system-x86_64 -cdrom Fedora-Workstation-Live-x86_64-29-1.2.iso -m 4000 -vnc 0.0.0.0:1
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4555:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5034:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
init fail
audio: Failed to create voice `pcspk'
qemu-system-x86_64: Initialization of device isa-pcspk failed: Initializing audio voice failed
git bisect blames this change:
commit 6a48541873f14b597630283f8f5397674ad82ea9 (HEAD, refs/bisect/bad)
Author: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu Jan 24 12:20:55 2019 +0100
audio: probe audio drivers by default
Add the drivers listed in audio_possible_drivers to audio_drv_list,
using the try-* variants. That way the probable drivers are compiled by
default if possible.
Additioal tweaks:
linux: reorder to: pa alsa sdl oss.
*bsd: drop pa.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20190124112055.547-7-kraxel@redhat.com
This changed our probe order:
Linux)
- audio_drv_list="oss"
+ audio_drv_list="try-pa try-alsa try-sdl oss"
After some debugging I can see that 'audio_init' successfully
initializes the alsa driver.
When the pcspk devices goes to AUD_open_out though, the alsa driver
fails spewing the above text to stderr and thus causes QEMU to fail.
This looks very much like the ALSA driver in QEMU is broken -
audio_init() should not have succeeded unless the ALSA driver knew it
could later succesfully honour AUD_open_out.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1816052/+subscriptions
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2019-04-24 5:25 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-15 14:44 [Qemu-devel] [Bug 1816052] [NEW] qemu system emulator fails to start if no sound card is present on host Daniel Berrange
2019-02-15 19:26 ` [Qemu-devel] [Bug 1816052] " Kris M
2019-02-15 19:30 ` Kris M
2019-02-15 19:45 ` Jeremy Bicha
2019-02-19 5:47 ` Kris M
2019-02-19 9:02 ` Gerd Hoffmann
2019-02-25 3:14 ` Like Xu
2019-02-26 3:27 ` Like Xu
2019-04-24 5:18 ` Thomas Huth
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