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Kernel command line in grub.
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Deucher, Alexander <Alexander.Deucher@xxxxxxx>
Sent: Friday, April 5, 2019 1:07 PM To: Pinky; amd-gfx@xxxxxxxxxxxxxxxxxxxxx Subject: Re: Screen flicckering due to "drm/amdgpu: enable gfxoff again on raven series"
This may be related to stutter mode rather than gfxoff. If so, there is a fix in the pipeline for that. Does setting appending amdgpu.ppfeaturemask=0xfffdbfff on the kernel command line fix it?
Alex
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Pinky <j-pi@xxxxxxxxx>
Sent: Friday, April 5, 2019 12:24 PM To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx Subject: Screen flicckering due to "drm/amdgpu: enable gfxoff again on raven series" Hello,
I have today compiled the drm-next kernel from (1) and find out the screen is flickering and shows various artifacts. By bissecting I found the cause is commit 005440066f929ba0dca8f4e0aebfbf8daac592cc. By reverting it the problem went out. I does not have idea about what to do next. Sorry if this should be posted to some bugzilla instead, I have got a bit lost. If so, would You please point my out what to do? With best regards, Pinkava J. lspci (partial) 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev d1) 06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller (1) git://people.freedesktop.org/~agd5f/linux _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx |
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