* [Qemu-devel] [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted
2018-07-13 2:11 [Qemu-devel] [Bug 1781515] [NEW] Resolution switch leads to the screen/image being corrupted Diego Viola
@ 2018-07-13 2:16 ` Diego Viola
2018-07-13 4:06 ` Francisco de la Peña
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Diego Viola @ 2018-07-13 2:16 UTC (permalink / raw)
To: qemu-devel
Switching the resolution with -vga std was working fine before, I'm not
sure on which version it started having this issue, but it should be on
a recent version.
I use the intel i915 drivers on the host OS.
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https://bugs.launchpad.net/bugs/1781515
Title:
Resolution switch leads to the screen/image being corrupted
Status in QEMU:
New
Bug description:
I am currently using QEMU on a Arch Linux host, the guest OS is also
Arch Linux.
The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the
command line I'm using to fire an Arch VM is:
$ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4
The problem I'm currently having is, after firing the VM and running
startx I want to change the resolution to the native resolution, which
is 1366x768 on my ThinkPad T450, however, after changing the
resolution the image on the guest gets corrupted and it's impossible
to see anything.
At this point I can only turn off the VM. The only workaround I found
is to start the VM with -vga virtio.
The problem in this case occurs with -vga std which is the default
video driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions
^ permalink raw reply [flat|nested] 6+ messages in thread* [Qemu-devel] [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted
2018-07-13 2:11 [Qemu-devel] [Bug 1781515] [NEW] Resolution switch leads to the screen/image being corrupted Diego Viola
2018-07-13 2:16 ` [Qemu-devel] [Bug 1781515] " Diego Viola
@ 2018-07-13 4:06 ` Francisco de la Peña
2018-07-13 4:27 ` Diego Viola
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Francisco de la Peña @ 2018-07-13 4:06 UTC (permalink / raw)
To: qemu-devel
Hi Diego,
It seems this is a known limitation[1] because horizontal width is not a
multiple of 8, try 1360x768 as the nearest resolution, which works for
me on guests not supporting QXL drivers.
Regards.
[1] Proposed patch from 2013: https://lists.gnu.org/archive/html/qemu-
devel/2013-03/msg02732.html
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1781515
Title:
Resolution switch leads to the screen/image being corrupted
Status in QEMU:
New
Bug description:
I am currently using QEMU on a Arch Linux host, the guest OS is also
Arch Linux.
The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the
command line I'm using to fire an Arch VM is:
$ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4
The problem I'm currently having is, after firing the VM and running
startx I want to change the resolution to the native resolution, which
is 1366x768 on my ThinkPad T450, however, after changing the
resolution the image on the guest gets corrupted and it's impossible
to see anything.
At this point I can only turn off the VM. The only workaround I found
is to start the VM with -vga virtio.
The problem in this case occurs with -vga std which is the default
video driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions
^ permalink raw reply [flat|nested] 6+ messages in thread* [Qemu-devel] [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted
2018-07-13 2:11 [Qemu-devel] [Bug 1781515] [NEW] Resolution switch leads to the screen/image being corrupted Diego Viola
2018-07-13 2:16 ` [Qemu-devel] [Bug 1781515] " Diego Viola
2018-07-13 4:06 ` Francisco de la Peña
@ 2018-07-13 4:27 ` Diego Viola
2020-11-12 15:37 ` Thomas Huth
2021-01-12 4:17 ` Launchpad Bug Tracker
4 siblings, 0 replies; 6+ messages in thread
From: Diego Viola @ 2018-07-13 4:27 UTC (permalink / raw)
To: qemu-devel
Hi Francisco, thanks for your quick reply.
I've tried `xrandr --output Virtual-1 --mode 1360x768' with -vga std and
I also get a corrupted image.
I'm attaching a screenshot of what the screen corruption looks like
after changing the resolution.
Thanks.
** Attachment added: "qemu.png"
https://bugs.launchpad.net/qemu/+bug/1781515/+attachment/5163111/+files/qemu.png
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1781515
Title:
Resolution switch leads to the screen/image being corrupted
Status in QEMU:
New
Bug description:
I am currently using QEMU on a Arch Linux host, the guest OS is also
Arch Linux.
The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the
command line I'm using to fire an Arch VM is:
$ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4
The problem I'm currently having is, after firing the VM and running
startx I want to change the resolution to the native resolution, which
is 1366x768 on my ThinkPad T450, however, after changing the
resolution the image on the guest gets corrupted and it's impossible
to see anything.
At this point I can only turn off the VM. The only workaround I found
is to start the VM with -vga virtio.
The problem in this case occurs with -vga std which is the default
video driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted
2018-07-13 2:11 [Qemu-devel] [Bug 1781515] [NEW] Resolution switch leads to the screen/image being corrupted Diego Viola
` (2 preceding siblings ...)
2018-07-13 4:27 ` Diego Viola
@ 2020-11-12 15:37 ` Thomas Huth
2021-01-12 4:17 ` Launchpad Bug Tracker
4 siblings, 0 replies; 6+ messages in thread
From: Thomas Huth @ 2020-11-12 15:37 UTC (permalink / raw)
To: qemu-devel
The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience.
** Changed in: qemu
Status: New => Incomplete
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1781515
Title:
Resolution switch leads to the screen/image being corrupted
Status in QEMU:
Incomplete
Bug description:
I am currently using QEMU on a Arch Linux host, the guest OS is also
Arch Linux.
The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the
command line I'm using to fire an Arch VM is:
$ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4
The problem I'm currently having is, after firing the VM and running
startx I want to change the resolution to the native resolution, which
is 1366x768 on my ThinkPad T450, however, after changing the
resolution the image on the guest gets corrupted and it's impossible
to see anything.
At this point I can only turn off the VM. The only workaround I found
is to start the VM with -vga virtio.
The problem in this case occurs with -vga std which is the default
video driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 1781515] Re: Resolution switch leads to the screen/image being corrupted
2018-07-13 2:11 [Qemu-devel] [Bug 1781515] [NEW] Resolution switch leads to the screen/image being corrupted Diego Viola
` (3 preceding siblings ...)
2020-11-12 15:37 ` Thomas Huth
@ 2021-01-12 4:17 ` Launchpad Bug Tracker
4 siblings, 0 replies; 6+ messages in thread
From: Launchpad Bug Tracker @ 2021-01-12 4:17 UTC (permalink / raw)
To: qemu-devel
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1781515
Title:
Resolution switch leads to the screen/image being corrupted
Status in QEMU:
Expired
Bug description:
I am currently using QEMU on a Arch Linux host, the guest OS is also
Arch Linux.
The QEMU version is currently 2.12.0-2 packaged by Arch Linux, the
command line I'm using to fire an Arch VM is:
$ qemu-system-x86_64 -enable-kvm -hda archlinux.qcow2 -m 4G -smp 4
The problem I'm currently having is, after firing the VM and running
startx I want to change the resolution to the native resolution, which
is 1366x768 on my ThinkPad T450, however, after changing the
resolution the image on the guest gets corrupted and it's impossible
to see anything.
At this point I can only turn off the VM. The only workaround I found
is to start the VM with -vga virtio.
The problem in this case occurs with -vga std which is the default
video driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1781515/+subscriptions
^ permalink raw reply [flat|nested] 6+ messages in thread
