[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

            Bug ID: 111244
           Summary: amdgpu kernel 5.2 blank display after resume from
                    suspend
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: cspack@verizon.net

Created attachment 144901
  --> https://bugs.freedesktop.org/attachment.cgi?id=144901&action=edit
kernel log

Model: Lenovo Ideapad S340 15"
CPU: AMD Ryzen 5 3500U

Starting with kernel 5.2, laptop has a blank display after resuming from
suspend. Problem doesn't appear with recent kernels up to 5.1.16. Attached is a
kernel log and git bisect logs.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #1 from cspack@verizon.net ---
Created attachment 144902
  --> https://bugs.freedesktop.org/attachment.cgi?id=144902&action=edit
first bisect log

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #2 from cspack@verizon.net ---
Created attachment 144903
  --> https://bugs.freedesktop.org/attachment.cgi?id=144903&action=edit
second bisect log

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #144901|text/x-log                  |text/plain
          mime type|                            |

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nicholas.kazlauskas@amd.com

--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
The fact that you got two different bisection results indicates that the
problem might be not 100% reproducible, and you accidentally marked some
affected commits as good. Please test a given commit longer / more often before
declaring it "good".

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #4 from cspack@verizon.net ---
The first bisect pointed to a merge commit so the second was done to bisect
within the merged commits.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #5 from Michel Dänzer <michel@daenzer.net> ---
(In reply to cspack from comment #4)
> The first bisect pointed to a merge commit so the second was done to bisect
> within the merged commits.

That doesn't invalidate my previous comment. :) git bisect identifying a merge
commit already indicates the same thing by itself. In particular, the fact that
it identified a merge commit means that you declared all of its parent commits
good.

(There *are* rare cases where a problem is actually introduced by a merge
commit itself, but then the second bisection should have either identified the
same merge commit again (if you tested it again), or failed, because all the
other commits you tested should have been good again.)

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #6 from cspack@verizon.net ---
I see your point, and you are correct. It seems the issue is not 100%
reproducible. I will redo the bisect and test more thoroughly. Thank you.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Samuele Decarli <samuele.decarli@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #7 from Samuele Decarli <samuele.decarli@gmail.com> ---
@cspack I am currently repeating your bisection on similar hardware, however I
have found 27eaa4927dc3be669ed70670241597ac73595caf to be bad. Could you please
retest that commit as well?

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #8 from Samuele Decarli <samuele.decarli@gmail.com> ---
Created attachment 144928
  --> https://bugs.freedesktop.org/attachment.cgi?id=144928&action=edit
Result of git bisect

Model: HP EliteBook 745 G5
CPU/GPU: AMD Ryzen 7 PRO 2700U

I completed my bisection and this is the log.
The first bad commit seems to be this one. It's actually a fairly innocent
commit, so it's probably causing a bug somewhere else.

df8368be1382b442384507a5147c89978cd60702 is the first bad commit
commit df8368be1382b442384507a5147c89978cd60702
Author: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date:   Wed Feb 27 12:56:36 2019 -0500

    drm/amdgpu: Bump amdgpu version for per-flip plane tiling updates

    To help xf86-video-amdgpu and mesa know DC supports updating the
    tiling attributes for a framebuffer per-flip.

    Cc: Michel Dänzer <michel@daenzer.net>
    Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
    Acked-by: Alex Deucher <alexander.deucher@amd.com>
    Reviewed-by: Marek Olšák <marek.olsak@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #9 from Samuele Decarli <samuele.decarli@gmail.com> ---
Created attachment 144929
  --> https://bugs.freedesktop.org/attachment.cgi?id=144929&action=edit
Kernel log displaying issue

Compressed here is my kernel log, which shows repeating stack traces

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #10 from Samuele Decarli <samuele.decarli@gmail.com> ---
Interestingly the same commit is blamed for anther issue
https://bugs.freedesktop.org/show_bug.cgi?id=111122

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Samuele Decarli <samuele.decarli@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=111122

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #11 from cspack@verizon.net ---
@Samuele Yes, after redoing the bisect I got the same result as you did.
Thanks.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #12 from cspack@verizon.net ---
One thing to note, the problem doesn't seem to occur for me if a compositor
isn't running. In my case, after disabling compton I could not reproduce the
problem.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Samuele Decarli <samuele.decarli@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #13 from Samuele Decarli <samuele.decarli@gmail.com> ---
Similar thing for me: disabling composition in Plasma makes suspend/resume work
again.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #14 from Damian Kaczmarek <rush@rushbase.net> ---
Another workaround is to switch to the text terminal (Ctrl+Alt+F2) before
suspending.

Occuring on Thinkpad T495, Ryzej 3700U, openSUSE Tumbleweed (kernel 5.2.2-1)

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #15 from Damian Kaczmarek <rush@rushbase.net> ---
Are any other known workarounds? Perhaps some kernel options?

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #16 from cspack@verizon.net ---
This commit in xf86-video-amdgpu seem to be where things break
https://github.com/freedesktop/xorg-xf86-video-amdgpu/commit/a2b32e72fdaff3007a79b84929997d8176c2d512

Adding amdgpu.dc=1 to kernel options seems fix the issue for me.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #17 from cspack@verizon.net ---
Created attachment 144967
  --> https://bugs.freedesktop.org/attachment.cgi?id=144967&action=edit
xf86-video-amdgpu git bisect

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

cspack@verizon.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #144967|text/x-log                  |text/plain
          mime type|                            |

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #18 from Michel Dänzer <michel@daenzer.net> ---
(In reply to cspack from comment #16)
> Adding amdgpu.dc=1 to kernel options seems fix the issue for me.

Presumably you mean amdgpu.dc=0 ?

Your findings indicate that the kernel driver DC code doesn't handle flipping
between buffers with different tiling parameters correctly in some cases.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #19 from cspack@verizon.net ---
With amdgpu.dc=0, X doesn't start ((EE) AMDGPU(0): No modes.)

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 525 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #20 from Michel Dänzer <michel@daenzer.net> ---
(In reply to cspack from comment #19)
> With amdgpu.dc=0, X doesn't start ((EE) AMDGPU(0): No modes.)

Right (I realized the amdgpu kernel driver doesn't support display with your
GPU without DC), but amdgpu.dc=1 is the default. It was probably just luck that
it worked once, which is why your first bisect attempts failed.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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[-- Attachment #1.1: Type: text/plain, Size: 650 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #21 from cspack@verizon.net ---
The default is -1 according to the docs and /sys/module/amdgpu/parameters/dc. I
assume it should effectively be the same but it seems to result in different
behavior vs. setting it to 1. DC is enabled in both cases (the log shows
"Display Core initialized"), but setting it to default results in a
suspend/resume failure 100% of the time. Whereas setting it to 1 results in
success most of time, although it did fail eventually after several reboots.
Very strange.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #22 from Michel Dänzer <michel@daenzer.net> ---
(In reply to cspack from comment #21)
> The default is -1 according to the docs and
> /sys/module/amdgpu/parameters/dc.

What I meant is it's enabled by default for you, so amdgpu.dc=1 has no effect.


> I assume it should effectively be the same but it seems to result in different
> behavior vs. setting it to 1.

The different behaviour is just luck, which is why you had trouble bisecting
initially, not related to amdgpu.dc=1.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 368 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #23 from Samuele Decarli <samuele.decarli@gmail.com> ---
amdgpu.dc=1 had no effect on my machine. On my computer resume fails quite
consistently

Any idea on what should be done to fix this, or even what is the cause?

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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[-- Attachment #1.1: Type: text/plain, Size: 769 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #24 from miba_c@gmx.at ---
Having the same issue on a ThinkPad T495s (BIOS 1.06) with a Ryzen 7 PRO 3700U,
Kernel 5.2.8-arch1-1-ARCH, Mesa 19.1.4-1 and running sway (wayland) as a window
manager.

dmesg shows me:
[drm] Fence fallback timer expired on ring sdma0
amdgpu 0000:05:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed
on gfx (-110).
[drm:amdgpu_device_ip_late_init_func_handler [amdgpu]] *ERROR* ib ring test
failed (-110).

One thing to note is that setting amd_iommu=off as a kernel parameter makes
this issue really rare but it'll still sometimes happen, maybe it's also just
luck.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #25 from Andrey Grodzovsky <andrey.grodzovsky@amd.com> ---
(In reply to miba_c from comment #24)
> Having the same issue on a ThinkPad T495s (BIOS 1.06) with a Ryzen 7 PRO
> 3700U, Kernel 5.2.8-arch1-1-ARCH, Mesa 19.1.4-1 and running sway (wayland)
> as a window manager.
> 
> dmesg shows me:
> [drm] Fence fallback timer expired on ring sdma0
> amdgpu 0000:05:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test
> failed on gfx (-110).
> [drm:amdgpu_device_ip_late_init_func_handler [amdgpu]] *ERROR* ib ring test
> failed (-110).
> 
> One thing to note is that setting amd_iommu=off as a kernel parameter makes
> this issue really rare but it'll still sometimes happen, maybe it's also
> just luck.

Please attach full log, also it looks log.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #26 from miba_c@gmx.at ---
Created attachment 145065
  --> https://bugs.freedesktop.org/attachment.cgi?id=145065&action=edit
failed suspend log

Attached full log

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #27 from miba_c@gmx.at ---
fwiw downgrading to 5.1.16 seems to fix the issue here too

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #28 from miba_c@gmx.at ---
Created attachment 145406
  --> https://bugs.freedesktop.org/attachment.cgi?id=145406&action=edit
failed suspend 5.2.14

Still occasionally happens on 5.2.14. Hard to figure out what's causing this
since it seems rather random and only happens once in a while.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #29 from Gabriel C <nix.or.die@gmail.com> ---
Michael,

I see the same on a Ryzen 7 35750H APU + RX 560x Nitro5 Laptop.

reverting
https://github.com/freedesktop/xorg-xf86-video-amdgpu/commit/a2b32e72fdaff3007a79b84929997d8176c2d512

fixes the problem for me.

I tested kernels 5.2*, 5.3, and all have the same problem 
when suspending from X with that commit, without the commit
everything is working fine.


( will test 5.4git once drm-next is in but I tested amd-staging-drm-next
some days ago and that didn't work also )

If you need more informations please let me know.

I can test any kind patches kernel/X/mesa and/or give
you debug info if you tell me what you may need.

Best Regards,

Gabriel C

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #30 from Gabriel C <nix.or.die@gmail.com> ---
(In reply to Gabriel C from comment #29)
> Michael,
> 
> I see the same on a Ryzen 7 35750H APU + RX 560x Nitro5 Laptop.

 It is 3750H :-)

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #31 from Gabriel C <nix.or.die@gmail.com> ---
I tested now 5.4git on commit 10169-g574cc4539762.

mesa 19.1.7
xorg-server 1.20.5
xf86-video-amdgpu 19.0.1

Suspend to ram seems to work better, 8 of 10 suspends worked.
Suspend to disk is still the same, broken.

With the commit reverted suspend to ram or to disk are fine.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #32 from miba_c@gmx.at ---
Cannot reproduce it anymore as of 5.4rc1, seems like it's fixed for me!

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #33 from Andrey Grodzovsky <andrey.grodzovsky@amd.com> ---
OOO today

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

--- Comment #34 from Carmen Bianca Bakker <carmen@carmenbianca.eu> ---
Created attachment 145793
  --> https://bugs.freedesktop.org/attachment.cgi?id=145793&action=edit
failed suspend 5.4.0rc2

Issue still occurs on 5.4rc2. In these logs, on the second suspension.

Thinkpad X395, Ryzen 3500U.

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[Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=111244

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #35 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/883.

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