[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #33 from Florian Schmitt (kommer...@galois.de) ---
Looks like the patch made it into 4.13.11. Yay. Thanks!

From the changelog:

commit 0d74253003e6370e65468f5aec8c969bdef6733e
Author: Rex Zhu 
Date:   Fri Oct 20 15:07:41 2017 +0800

drm/amd/powerplay: fix uninitialized variable

commit 8b95f4f730cba02ef6febbdc4ca7e55ca045b00e upstream.

refresh_rate was not initialized when program
display gap.
this patch can fix vce ring test failed
when do S3 on Polaris10.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103102
bug: https://bugzilla.kernel.org/show_bug.cgi?id=196615

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #32 from Philipp Claßen (philipp.clas...@posteo.de) ---
Solved it for me, too. Tested on Arch Linux with 4.14.0-rc6-mainline (plus the
patch).

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #31 from klavkala...@gmail.com ---
Yep, it seems to work fine also on 4.13 in Ubuntu. Built the current version of
Ubuntu which is called 4.13.0-16-generic with the patch just posted, and the
same small test with two suspend/resume cycles worked just fine with no errors.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Florian Schmitt (kommer...@galois.de) changed:

   What|Removed |Added

 CC||kommer...@galois.de

--- Comment #30 from Florian Schmitt (kommer...@galois.de) ---
Looks like that did the trick for me. I'm using linux 4.13.8 on Fedora.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #29 from klavkala...@gmail.com ---
I did a quick test on my Arch linux install. With Linux 4.14-rc5 and this
latest patch applied, it seems to work like it should! I suspended and resumed
twice and there were no errors reported and the computer resumed correctly. I
couldn't get 4.13 to build for some reason, but I think the fault lies in my
noobieness :) Will try tomorrow to build 4.13 on Ubuntu instead and get back
with results. But so far so good, great job and many thanks!

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #28 from Alex Deucher (alexdeuc...@gmail.com) ---
Created attachment 260307
  --> https://bugzilla.kernel.org/attachment.cgi?id=260307=edit
possible fix

Does the attached patch fix the issue?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #27 from klavkala...@gmail.com ---
Alex, I'm sorry for being pushy, but is anything being done about this? The
next LTS kernel is closing in on release and suspend/resume is still not
working. Linux 4.12.13 is still the last kernel with it working. If there is
anything I can help with to solve this, like testing, info etc. just ask.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #26 from cont...@florentflament.com ---
I just figured out that if instead of opening a 'Gnome on Xorg' session, I open
a 'Gnome' session (which, as far as I know, starts a 'Wayland Display Server'
instead of Xorg on my Fedora setup), then I don't have any more issues resuming
after a suspend. It works pretty well, no more amdgpu related error messages in
my journal.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

cont...@florentflament.com changed:

   What|Removed |Added

 CC||cont...@florentflament.com

--- Comment #25 from cont...@florentflament.com ---
Hi,
Same issue here. OS freezing after resume from suspend with an AMD RX480 GPU.

$ cat /etc/redhat-release 
Fedora release 26 (Twenty Six)
$ uname -a
Linux amn 4.13.4-200.fc26.x86_64 #1 SMP Thu Sep 28 20:46:39 UTC 2017 x86_64
x86_64 x86_64 GNU/Linux
$ journalctl -k -b -2 | grep amdgpu | tail -5
Oct 12 01:46:06 amn kernel: [drm] Initialized amdgpu 3.18.0 20150101 for
:01:00.0 on minor 0
Oct 12 23:16:29 amn kernel: [drm:amdgpu_vce_ring_test_ring [amdgpu]] *ERROR*
amdgpu: ring 14 test failed
Oct 12 23:16:29 amn kernel: [drm:amdgpu_resume_phase2 [amdgpu]] *ERROR* resume
of IP block  failed -110
Oct 12 23:16:29 amn kernel: [drm:amdgpu_device_resume [amdgpu]] *ERROR*
amdgpu_resume failed (-110).
Oct 12 23:16:30 amn kernel: amdgpu :01:00.0: 9514d9161800 unpin not
necessary

Regards

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #24 from klavkala...@gmail.com ---
I would suggest to remove the fix in all kernel versions until we can confirm
it doesn't break anything. Having an LTS kernel break suspend/resume for
polaris users doesn't sound to good.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #23 from klavkala...@gmail.com ---
Oh. I didn't realize it worked like that. The same problem happens with all
versions of 4.13 and 4.14 I tried so far.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #22 from Alex Deucher (alexdeuc...@gmail.com) ---
(In reply to Peter Spiess-Knafl from comment #20)
> Alex can you help out here? Why was the patch fixing the suspend/resume
> issue removed in 4.13?

The fix was only applied to 4.12.  No one reported any problems with 4.13 or
newe until later.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #21 from Peter Spiess-Knafl (p...@autistici.org) ---
"git log -p drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c" reveals that the original
patch
(https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.12.y=2dc1889ebf8501b0edf125e89a30e1cf3744a2a7)
has been reapplied over the fix for suspend.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #20 from Peter Spiess-Knafl (p...@autistici.org) ---
Alex can you help out here? Why was the patch fixing the suspend/resume issue
removed in 4.13?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #19 from klavkala...@gmail.com ---
The code is still there in 4.14-rc4.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #18 from klavkala...@gmail.com ---
Looks like it when browsing the source. It's in both 4.13 and 4.14-rc3. I hope
it can be removed again in time for the LTS release. For now I'm holding off
the upgrade to 4.13. I don't know if I'm getting this right, but it sounds like
there is a choice between suspend/resume and screen flickering...

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #17 from Peter Spiess-Knafl (p...@autistici.org) ---
Same for me here. Arch 4.13.3. Was the original patch reapplied?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

klavkala...@gmail.com changed:

   What|Removed |Added

 CC||klavkala...@gmail.com

--- Comment #16 from klavkala...@gmail.com ---
This bug remains for me. It was working after the patch was reverted, and
continued to work fine for the rest of the 4.12 version, but as of linux
4.13.3, still the same symtoms. When browsing the sources for this kernel, it
seems the patch is still there. Was it supposed to be reapplied?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #15 from dolohow (dolo...@outlook.com) ---
Sure, it's a Linus tree


> Revert "drm/amdgpu: fix vblank_time when displays are off"
> 
> This reverts commit 2dc1889.
> 
> Fixes a suspend and resume regression.
> 
> bug: https://bugzilla.kernel.org/show_bug.cgi?id=196615
> Signed-off-by: Alex Deucher 
> Signed-off-by: Greg Kroah-Hartman 

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Harry Wentland (harry.wentl...@amd.com) changed:

   What|Removed |Added

 CC||harry.wentl...@amd.com

--- Comment #14 from Harry Wentland (harry.wentl...@amd.com) ---
(In reply to dolohow from comment #13)
> After I updated my kernel from 4.12.9 to 4.12.10 I started experiencing
> screen flickering on my RX 480.  I did bisecting and turns out that this
> commit dbe5b2d70cfdc3e1df1ceb3f715c6ef7d17fc566 makes my screen flickers.

Do you mind adding the commit subject and description in addition the the sha?
Which git tree is this from? I'm having trouble finding it.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

dolohow (dolo...@outlook.com) changed:

   What|Removed |Added

 CC||dolo...@outlook.com

--- Comment #13 from dolohow (dolo...@outlook.com) ---
After I updated my kernel from 4.12.9 to 4.12.10 I started experiencing screen
flickering on my RX 480.  I did bisecting and turns out that this commit
dbe5b2d70cfdc3e1df1ceb3f715c6ef7d17fc566 makes my screen flickers.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #12 from Alex Deucher (alexdeuc...@gmail.com) ---
I sent the patch to Greg last week.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #11 from Peter Spiess-Knafl (p...@autistici.org) ---
Alex, when will this be released?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #10 from Peter Spiess-Knafl (p...@autistici.org) ---
Please revert it then. Thanks for your help.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #9 from Alex Deucher (alexdeuc...@gmail.com) ---
(In reply to Peter Spiess-Knafl from comment #8)
> Yes, it does. But i guess it was a bugfix for another problem as indicated
> in your commit message.

It is a bug fix for high mclks when displays are off, but it seems to regress
resume for some reason so we are just trading one bug for another.  I guess
maybe there is some other fix missing.

> 
> Will you revert it?

Unless you think otherwise.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #8 from Peter Spiess-Knafl (p...@autistici.org) ---
Yes, it does. But i guess it was a bugfix for another problem as indicated in
your commit message.

Will you revert it?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Alex Deucher (alexdeuc...@gmail.com) changed:

   What|Removed |Added

 Attachment #258001|0   |1
   is patch||
 Attachment #258001|application/mbox|text/plain
  mime type||

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #7 from Alex Deucher (alexdeuc...@gmail.com) ---
Created attachment 258001
  --> https://bugzilla.kernel.org/attachment.cgi?id=258001=edit
revert the change

Does reverting it help?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Francisco J. Vazquez (d...@v44r.com) changed:

   What|Removed |Added

 CC||d...@v44r.com

--- Comment #6 from Francisco J. Vazquez (d...@v44r.com) ---
Same error on Gentoo, kernel 4.12.7, RX 470. On 4.12.7 the screen does come up
on wake up from suspend after a while (20 seconds or so) but the system is
unusable: the mouse cursor moves fine and the keyboard responds to keypresses
but the screen updates with a 20-30s lag (if I launch a new terminal it appears
after half a minute). Changing to VT with ctrl+alt+f[1-6] garbles the screen.

4.12.7 wake up:
[...]
[  128.978655] [drm] ring test on 10 succeeded in 6 usecs
[  129.025563] [drm] ring test on 11 succeeded in 1 usecs
[  129.025563] [drm] UVD initialized successfully.
[  129.126522] [drm] ring test on 12 succeeded in 0 usecs
[  129.331084] [drm:amdgpu_vce_ring_test_ring [amdgpu]] *ERROR* amdgpu: ring 13
test failed
[  129.331088] [drm:amdgpu_resume [amdgpu]] *ERROR* resume of IP block
 failed -110
[  129.331092] [drm:amdgpu_device_resume [amdgpu]] *ERROR* amdgpu_resume failed
(-110).
[  129.331094] dpm_run_callback(): pci_pm_resume+0x0/0xd0 returns -110
[  129.331095] PM: Device :01:00.0 failed to resume async: error -110



On 4.12.3 the screen comes up instantly after resume and everything works fine. 

4.12.3 wake up:
[...]
[   14.255996] [drm] ring test on 10 succeeded in 6 usecs
[   14.302859] [drm] ring test on 11 succeeded in 1 usecs
[   14.302860] [drm] UVD initialized successfully.
[   14.403827] [drm] ring test on 12 succeeded in 0 usecs
[   14.403847] [drm] ring test on 13 succeeded in 9 usecs
[   14.403848] [drm] VCE initialized successfully.
[   14.403945] [drm] ib test on ring 0 succeeded
[   14.404119] [drm] ib test on ring 1 succeeded
[...]
[   14.405487] [drm] ib test on ring 11 succeeded
[   14.405694] [drm] ib test on ring 12 succeeded

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #5 from Peter Spiess-Knafl (p...@autistici.org) ---
Alex, do you need further infos?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #4 from Peter Spiess-Knafl (p...@autistici.org) ---
Created attachment 257861
  --> https://bugzilla.kernel.org/attachment.cgi?id=257861=edit
dmesg log regarding the freeze.

dmesg log regarding the freeze.

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

--- Comment #3 from Peter Spiess-Knafl (p...@autistici.org) ---
Hi Alex!

Thanks for getting back. First there are strange artefacts where the mouse
pointer should be and shortly after the system freezes all together.

I'll attach a dmesg log. But I think the relevant errors are these:

Aug 08 22:30:29 rabe kernel: [drm:amdgpu_vce_ring_test_ring [amdgpu]] *ERROR*
amdgpu: ring 13 test failed
Aug 08 22:30:29 rabe kernel: [drm:amdgpu_resume [amdgpu]] *ERROR* resume of IP
block  failed -110
Aug 08 22:30:29 rabe kernel: [drm:amdgpu_device_resume [amdgpu]] *ERROR*
amdgpu_resume failed (-110).
Aug 08 22:30:29 rabe kernel: dpm_run_callback(): pci_pm_resume+0x0/0xa0 returns
-110
Aug 08 22:30:29 rabe kernel: PM: Device :01:00.0 failed to resume async:
error -110

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Alex Deucher (alexdeuc...@gmail.com) changed:

   What|Removed |Added

 CC||alexdeuc...@gmail.com

--- Comment #2 from Alex Deucher (alexdeuc...@gmail.com) ---
Please attach your dmesg output.  How exactly does resume fail?

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Peter Spiess-Knafl (p...@autistici.org) changed:

   What|Removed |Added

URL||https://git.kernel.org/pub/
   ||scm/linux/kernel/git/stable
   ||/linux-stable.git/commit/?h
   ||=linux-4.12.y=2dc1889ebf
   ||8501b0edf125e89a30e1cf3744a
   ||2a7

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[Bug 196615] amdgpu - resume from suspend is no longer working on rx480

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196615

Peter Spiess-Knafl (p...@autistici.org) changed:

   What|Removed |Added

 CC||p...@autistici.org
 Regression|No  |Yes

--- Comment #1 from Peter Spiess-Knafl (p...@autistici.org) ---
I also started a discussion thread on the arch forum:

https://bbs.archlinux.org/viewtopic.php?pid=1729393#p1729393

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