[Bug 119991] New: Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[Bug 119991] New: Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=119991

            Bug ID: 119991
           Summary: Screen is corrupt upon resume from hybrid-sleep with
                    Radeon HD5xxx cards
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.6.1
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: j.markus.maunus@gmail.com
        Regression: No

When resuming from hybrid-sleep, the screen is blank/corrupt (usually
white-ish, resembling static with some random colours, but sometimes black or a
pattern of black/white boxes) and the GUI is essentially unusable as nothing is
visible. The system is still responsive, however; I can switch to/from virtual
consoles without issue (and ssh into the box). 

I can reproduce this every time, but only on resume from hybrid sleep - normal
suspend works fine, as does hibernate. In fact, after resuming from hybrid
sleep I can "fix" the corruption by hibernating the system, and then resuming -
some corruption remains, but is quickly cleared by doing something simple such
as alt-tabbing or moving/resizing the topmost window, and the system appears to
work normally.

This does not happen with my HD 4670, but does appear with HD 5750 and HD 5850.

A possibly related symptom: sometimes both hibernate and hybrid-sleep take
extraordinarily long (hard disks spin down normally, but the system remains
powered and fans running for considerable time, anywhere from ~10 seconds to
several minutes after the disks have stopped). This happens with both 5-series
cards as well, but not on the 4670. However, I have had this happen even on
kernels which do not exhibit screen corruption after resume from hybrid sleep,
and can't consistently reproduce it.

I did a git bisect on Linus' tree and the first bad commit is
b9729b17a414f99c61f4db9ac9f9ed987fa0cbfe

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 119991] Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=119991

Felix Schwarz <felix.schwarz@oss.schwarz.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |felix.schwarz@oss.schwarz.e
                   |                            |u

--- Comment #1 from Felix Schwarz <felix.schwarz@oss.schwarz.eu> ---
This commit seems to be a funny one as it was reverted later one (and we even
have a revert of the revert). If you revert b9729b17 on top of Linus' tree does
the problem go away for you?

Hopefully this isn't too much noise (as it might be a different problem) I see
similar symptoms with a HD6450 (also with regular suspend but it only happens
in most cases, not always) and the problem goes away if I revert that commit.


just for reference:
commit d57c0edfe00d3274b50f91ce3076ed0e82d28782
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Wed Jul 8 14:08:12 2015 -0400

    Revert "Revert "drm/radeon: dont switch vt on suspend""

    This reverts commit ac9134906b3f5c2b45dc80dab0fee792bd516d52.

    We've fixed the underlying problem with cursors, so re-enable
    this.

commit ac9134906b3f5c2b45dc80dab0fee792bd516d52
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Mon Jun 29 11:09:11 2015 -0400

    Revert "drm/radeon: dont switch vt on suspend"

    This reverts commit b9729b17a414f99c61f4db9ac9f9ed987fa0cbfe.

    This seems to break the cursor on resume for lots of systems.

    Cc: stable@vger.kernel.org

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 119991] Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=119991

--- Comment #2 from Jani-Markus Maunus <j.markus.maunus@gmail.com> ---
The current master has fixed both screen corruption as well as abnormally slow
hibernate/hybrid suspend - even without the revert. Both were still present as
of 4.6.2 stable.

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 119991] Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=119991

--- Comment #3 from Jani-Markus Maunus <j.markus.maunus@gmail.com> ---
I did a bisect out of curiosity, and in my case the following commit fixes both
issues.

commit 274ad65c9d02bdcbee9bae045517864c3521d530
Author: Jérome Glisse <jglisse@redhat.com>
Date:   Fri Mar 18 16:58:39 2016 +0100

    drm/radeon: hard reset r600 and newer GPU when hibernating.

    Some GPU block like UVD and VCE require hard reset to be properly
    resume if there is no real powerdown of the asic like during various
    hibernation step. This patch perform such hard reset.

    Reviewed-by: Christian König <christian.koenig@amd.com>
    Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
    Cc: Alex Deucher <alexander.deucher@amd.com>
    Cc: Christian König <christian.koenig@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Also, to clarify, reverting b9729b17a4 on master made no difference, but
reverting it on the commit immediately preceding the above also fixed both
issues. In any case, the bug appears fixed for me.

I might be just rambling at this point, but 4.6.1 stable was definitely bugged
for me, yet this commit is dated well before 4.6.1 release - any idea what's up
with that?

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 119991] Screen is corrupt upon resume from hybrid-sleep with Radeon HD5xxx cards

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=119991

--- Comment #4 from Felix Schwarz <felix.schwarz@oss.schwarz.eu> ---
(In reply to Jani-Markus Maunus from comment #3)
> I might be just rambling at this point, but 4.6.1 stable was definitely
> bugged for me, yet this commit is dated well before 4.6.1 release - any idea
> what's up with that?

Well it seems to me as if Jérôme's patch was merged via Alex's 'drm-next' and
Dave's 'drm-next-4.7' branches so it just missed the boat for 4.6. Also the
commit you pointed out above has no "stable" tag so it won't be picked up
automatically for point releases.

If you really care about 4.6 you might want to ping the authors and/or the
reviewers who might be willing to nominate the patch for the stable series.

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel