* [Bug 107049] monitor not found in 4.17+ kernel
@ 2018-06-27 10:16 bugzilla-daemon
2018-06-27 10:17 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 10:16 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
Bug ID: 107049
Summary: monitor not found in 4.17+ kernel
Product: DRI
Version: unspecified
Hardware: PowerPC
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: dan@danny.cz
CC: bcrocker@redhat.com
When booting kernel 4.17 or 4.18-pre on Power9 machine with Radeon Pro WX 4100
I get no output on a monitor connected thru DisplayPort, the monitor is not
detected by the driver and a "PowerPlay" error appears in the kernel log. When
booting 4.16 kernel (kernel-4.16.16-300.fc28.ppc64le), all is OK. See attached
dmesg (resp. journalctl -k -b) outputs.
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
@ 2018-06-27 10:17 ` bugzilla-daemon
2018-06-27 10:19 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 10:17 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #1 from Dan Horák <dan@danny.cz> ---
Created attachment 140359
--> https://bugs.freedesktop.org/attachment.cgi?id=140359&action=edit
boot log for 4.18.0-0.rc2.git2.1.fc29
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
2018-06-27 10:17 ` bugzilla-daemon
@ 2018-06-27 10:19 ` bugzilla-daemon
2018-06-27 10:24 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 10:19 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #2 from Dan Horák <dan@danny.cz> ---
Created attachment 140360
--> https://bugs.freedesktop.org/attachment.cgi?id=140360&action=edit
boot log for 4.16.16-300.fc28
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
2018-06-27 10:17 ` bugzilla-daemon
2018-06-27 10:19 ` bugzilla-daemon
@ 2018-06-27 10:24 ` bugzilla-daemon
2018-06-27 10:51 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 10:24 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #3 from Dan Horák <dan@danny.cz> ---
No output is for the host OS (kernel), that's kexec-ed from the bootloader. I
see the petitboot output.
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2018-06-27 10:24 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 10:51 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
Michel Dänzer <michel@daenzer.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |harry.wentland@amd.com
--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
amdgpu.dc=0 on the kernel command line might serve as a workaround for now.
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2018-06-27 10:51 ` bugzilla-daemon
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2018-06-27 14:33 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 11:14 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #5 from Dan Horák <dan@danny.cz> ---
(In reply to Michel Dänzer from comment #4)
> amdgpu.dc=0 on the kernel command line might serve as a workaround for now.
Thanks, it helps.
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2018-06-27 11:14 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 14:33 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #6 from Ben Crocker <bcrocker@redhat.com> ---
Dan,
Could you please also post the respective /var/log/Xorg.* logs?
Thanks!
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2018-06-27 14:33 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 14:44 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #7 from Dan Horák <dan@danny.cz> ---
Created attachment 140364
--> https://bugs.freedesktop.org/attachment.cgi?id=140364&action=edit
Xorg log for 4.18.0-0.rc2.git2.1.fc29
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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From: bugzilla-daemon @ 2018-06-27 14:46 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #8 from Dan Horák <dan@danny.cz> ---
Created attachment 140365
--> https://bugs.freedesktop.org/attachment.cgi?id=140365&action=edit
Xorg log for 4.17.2-200.fc28 with amdgpu.dc=0
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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@ 2019-05-02 6:18 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-05-02 6:18 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #9 from Dan Horák <dan@danny.cz> ---
Probably a good news, the amdgpu.dc=0 workaround isn't needed with 5.1-rc7
(haven't checked previous kernels yet).
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2019-05-02 6:18 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-05-04 13:04 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
--- Comment #10 from Dan Horák <dan@danny.cz> ---
and the dc=0 was still required for 5.0, so sound like an improvement in 5.1
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* [Bug 107049] monitor not found in 4.17+ kernel
2018-06-27 10:16 [Bug 107049] monitor not found in 4.17+ kernel bugzilla-daemon
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2019-05-04 13:04 ` bugzilla-daemon
@ 2019-05-06 8:52 ` bugzilla-daemon
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From: bugzilla-daemon @ 2019-05-06 8:52 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107049
Michel Dänzer <michel@daenzer.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #11 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Dan Horák from comment #10)
> and the dc=0 was still required for 5.0, so sound like an improvement in 5.1
Glad to hear it's fixed in 5.1! Thanks for the follow-ups, resolving
accordingly.
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