Screen flicckering due to "drm/amdgpu: enable gfxoff again on raven series"

Tue Apr 9 12:19:22 UTC 2019

> -----Original Message-----
> From: Pinky [mailto:j-pi at seznam.cz]
> Sent: Monday, April 08, 2019 8:42 PM
> To: Huang, Ray <Ray.Huang at amd.com>
> Cc: Alex Deucher <alexdeucher at gmail.com>; Deucher, Alexander
> <Alexander.Deucher at amd.com>; amd-gfx at lists.freedesktop.org
> Subject: Re: Screen flicckering due to "drm/amdgpu: enable gfxoff again on
> raven series"
> 
> * Huang, Ray <Ray.Huang at amd.com> [2019-04-08 10:36:53 +0000]:
> 
> >> -----Original Message-----
> >> From: Pinky [mailto:j-pi at seznam.cz]
> >> Sent: Saturday, April 06, 2019 3:09 PM
> >> To: Alex Deucher <alexdeucher at gmail.com>
> >> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Huang, Ray
> >> <Ray.Huang at amd.com>; amd-gfx at lists.freedesktop.org
> >> Subject: Re: Screen flicckering due to "drm/amdgpu: enable gfxoff
> >> again on raven series"
> >>
> >> Yes this seems to solve the issue, even
> >> amdgpu.ppfeaturemask=0xffff7fff provides the same efect.
> >>
> >>
> >> * Alex Deucher <alexdeucher at gmail.com> [2019-04-05 16:26:15 -0400]:
> >>
> >> >On Fri, Apr 5, 2019 at 4:00 PM Pinky <j-pi at seznam.cz> wrote:
> >> >>
> >> >> Yes, this one seems to be already in the drm-next branch (HEAD is
> >> >> now 7cdd4dc58d28).
> >> >>
> >> >
> >> >I'm not sure what is going on them.  You have RLC firmware version
> >> >53815 (0x0000d237) so gfx power gating is being disabled as of
> >> >083d022913f2f8c3bc1183a13874ad777b9f5bdd.
> >
> >Hi Pinkava,
> >
> >We have a similar issue that screen flickering caused by stutter mode.
> >
> >But per your testing result, I am a bit confused.
> 
> Hello Ray,
> 
> sorry for confussion, I re-tested it, there are two separate bugs:
> 
> flickering - probably related to stutter mode bug
>    (white flickering stripes on screen, )
> 
> artifacts - the original issue i have reported (broken but steady image)
> 
> 5.1.0-rc2-1-next-git-g7cdd4dc58d28 - artifacts, flickering
>   amdgpu.ppfeaturemask=0xffff7fff - flickering
>   amdgpu.ppfeaturemask=0xfffdffff - artifacts
>   amdgpu.ppfeaturemask=0xfffd7fff - OK
> 
>   amdgpu.ppfeaturemask=0xffffbfff - artifacts, flickering
>   amdgpu.ppfeaturemask=0xfffdbfff - artifacts
>   amdgpu.ppfeaturemask=0xfffd3fff - OK
> 
> Sorry again for confussion. Is there a patch for the shutter so I can test it?
> 

OK. 
Hersen, would you mind to share your patch to Pinkava? He want to give a test. 

Thanks,
Ray

> With best regards,
>     Pinkava J.
> 
> >
> >You mentioned that "ppfeaturemask=0xfffd3fff" could be fixed the issue,
> but "0xfffdbfff" doesn't fix it.
> >However, this is the same configuration while you add below patch.
> Because the gfxoff feature will be disabled while detect the RLC ucode is
> 53815 (0x0000d237).
> >https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-5.2-
> wip&id
> >=083d022913f2f8c3bc1183a13874ad777b9f5bdd
> >
> >Thanks,
> >Ray
> >
> >> >
> >> >Does setting amdgpu.ppfeaturemask=0xfffd3fff fix the issue?
> >> >
> >> >Alex
> >> >
> >> >> Just for completenes, there seems to be few more (probably
> >> >> unrelated)
> >> bugs.
> >> >> One with mouse (1), some artifact sometimes appear and terminal in
> >> >> X sometimes display black instead of text when scrooling. I did
> >> >> not intend to discuss this here, just mentioning it.
> >> >>
> >> >> P
> >> >>
> >> >>
> >> >>
> >> >> (1) https://bugs.freedesktop.org/show_bug.cgi?id=110339
> >> >>
> >> >> * Deucher, Alexander <Alexander.Deucher at amd.com> [2019-04-05
> >> 18:44:52 +0000]:
> >> >>
> >> >> >Make sure you have this patch as well:
> >> >> >https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-5.2-
> >> wip
> >> >> >&id=083d022913f2f8c3bc1183a13874ad777b9f5bdd
> >> >> >
> >> >> >Alex
> >> >> >________________________________
> >> >> >From: Pinky <j-pi at seznam.cz>
> >> >> >Sent: Friday, April 5, 2019 2:38 PM
> >> >> >To: Deucher, Alexander
> >> >> >Cc: Huang, Ray; amd-gfx at lists.freedesktop.org
> >> >> >Subject: Re: Screen flicckering due to "drm/amdgpu: enable gfxoff
> >> >> >again
> >> on raven series"
> >> >> >
> >> >> >
> >> >> >cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >> >> >VCE feature version: 0, firmware version: 0x00000000 UVD feature
> >> >> >version: 0, firmware version: 0x00000000 MC feature version: 0,
> >> >> >firmware version: 0x00000000 ME feature version: 40, firmware
> >> >> >version: 0x00000099 PFP feature version: 40, firmware version:
> >> >> >0x000000ae CE feature version: 40, firmware version: 0x0000004d
> >> >> >RLC feature version: 1, firmware version: 0x0000d237 RLC SRLC
> >> >> >feature
> >> >> >version: 1, firmware version: 0x00000001 RLC SRLG feature version:
> >> >> >1, firmware version: 0x00000001 RLC SRLS feature version: 1,
> >> >> >firmware version: 0x00000001 MEC feature version: 40, firmware
> >> >> >version: 0x0000018b
> >> >> >MEC2 feature version: 40, firmware version: 0x0000018b SOS
> >> >> >feature
> >> >> >version: 0, firmware version: 0x00000000 ASD feature version: 0,
> >> >> >firmware version: 0x0017ba78 TA XGMI feature version: 0, firmware
> >> >> >version: 0x00000000 TA RAS feature version: 0, firmware version:
> >> >> >0x00000000 SMC feature version: 0, firmware version: 0x00001e44
> >> >> >SDMA0 feature version: 41, firmware version: 0x000000a9 VCN
> >> >> >feature
> >> >> >version: 0, firmware version: 0x01004912 DMCU feature version: 0,
> >> >> >firmware version: 0x00000001 VBIOS version: 113-RAVEN-110
> >> >> >
> >> >> >
> >> >> >
> >> >> >* Deucher, Alexander <Alexander.Deucher at amd.com> [2019-04-05
> >> 18:33:23 +0000]:
> >> >> >
> >> >> >>+ Ray
> >> >> >>
> >> >> >>Ray, any ideas?
> >> >> >>
> >> >> >>Pinkava,
> >> >> >>
> >> >> >>can you provide the output of:
> >> >> >>sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info
> >> >> >>
> >> >> >>Thanks,
> >> >> >>
> >> >> >>Alex
> >> >> >>________________________________
> >> >> >>From: Pinky <j-pi at seznam.cz>
> >> >> >>Sent: Friday, April 5, 2019 1:53 PM
> >> >> >>To: Deucher, Alexander
> >> >> >>Cc: amd-gfx at lists.freedesktop.org
> >> >> >>Subject: Re: Screen flicckering due to "drm/amdgpu: enable
> >> >> >>gfxoff
> >> again on raven series"
> >> >> >>
> >> >> >>No, this does no do anything, the bug is still present.
> >> >> >>
> >> >> >>
> >> >> >>* Deucher, Alexander <Alexander.Deucher at amd.com> [2019-04-05
> >> 17:07:21 +0000]:
> >> >> >>
> >> >> >>>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 at lists.freedesktop.org> on
> behalf
> >> of
> >> >> >>>Pinky <j-pi at seznam.cz>
> >> >> >>>Sent: Friday, April 5, 2019 12:24 PM
> >> >> >>>To: amd-gfx at lists.freedesktop.org
> >> >> >>>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 at lists.freedesktop.org
> >> >> >>>https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> >> >> >>
> >> >> >>>_______________________________________________
> >> >> >>>amd-gfx mailing list
> >> >> >>>amd-gfx at lists.freedesktop.org
> >> >> >>>https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> >> >> >>
> >> >> _______________________________________________
> >> >> amd-gfx mailing list
> >> >> amd-gfx at lists.freedesktop.org
> >> >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> >_______________________________________________
> >amd-gfx mailing list
> >amd-gfx at lists.freedesktop.org
> >https://lists.freedesktop.org/mailman/listinfo/amd-gfx