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Kernel command line in grub.<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Deucher, Alexander <Alexander.Deucher@amd.com><br>
<b>Sent:</b> Friday, April 5, 2019 1:07 PM<br>
<b>To:</b> Pinky; amd-gfx@lists.freedesktop.org<br>
<b>Subject:</b> Re: Screen flicckering due to "drm/amdgpu: enable gfxoff again on raven series"</font>
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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?</div>
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Alex<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Pinky <j-pi@seznam.cz><br>
<b>Sent:</b> Friday, April 5, 2019 12:24 PM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Subject:</b> Screen flicckering due to "drm/amdgpu: enable gfxoff again on raven series"</font>
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<div class="x_PlainText">Hello,<br>
<br>
I have today compiled the drm-next kernel from (1) and find out the screen is<br>
flickering and shows various artifacts. By bissecting I found the cause<br>
is commit 005440066f929ba0dca8f4e0aebfbf8daac592cc. By reverting it the<br>
problem went out.<br>
<br>
I does not have idea about what to do next. Sorry if this should be posted to<br>
some bugzilla instead, I have got a bit lost. If so, would You please<br>
point my out what to do?<br>
<br>
With best regards,<br>
Pinkava J.<br>
<br>
<br>
lspci (partial)<br>
<br>
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU<br>
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge<br>
06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev d1)<br>
06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller<br>
<br>
<br>
<br>
<br>
(1) git://people.freedesktop.org/~agd5f/linux<br>
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