[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=88921

Aaron Lu <aaron.lu@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |aaron.lu@intel.com
          Component|Power-Sleep-Wake            |Video(DRI - non Intel)
           Assignee|acpi_power-sleep-wake@kerne |drivers_video-dri@kernel-bu
                   |l-bugs.osdl.org             |gs.osdl.org
            Product|ACPI                        |Drivers

--- Comment #1 from Aaron Lu <aaron.lu@intel.com> ---
Looks like DRM related, re-assign there.

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[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=88921

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Can you bisect?  Please also attach your dmesg output.

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[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=88921

--- Comment #3 from Eduard Bloch <blade@debian.org> ---
Created attachment 161711
  --> https://bugzilla.kernel.org/attachment.cgi?id=161711&action=edit
dmesg output

As mentioned, I tried to bisect a couple of months ago without much luck,
either because of compiling problems or the Heisenbug behavior.

In the meantime, I removed the no_console_suspend argument from the kernel
command line (which I originally added while doing the bisecting work) and now
the suspend act seems to be much more stable; I think I haven't seen the
failure again since I switched to 3.18rc7 a couple of weeks ago (and now at
3.18.1).

That might be pure coincidence, or maybe something related has changed (I also
upgraded Debian in the meantime), I cannot tell the exact reason right now. I
could try to add the no_console_suspend switch after Xmas to check whether the
problem returns.

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[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=88921

--- Comment #4 from Eduard Bloch <blade@debian.org> ---
Created attachment 162051
  --> https://bugzilla.kernel.org/attachment.cgi?id=162051&action=edit
dmesg covering X server lockup

This becomes more and more weird. Sometimes I can boot the system and I can
suspend it five times per day with no issues. Sometimes it reboots as described
in the original description.

And sometimes it seems to hang for about 10 seconds before the fans are turned
off (this feels like with pre-3.13rcX kernels). When I resume it, the X picture
is frozen. But I still can switch to the FB console and kill X from there.
However, when X is restarted, it feels slightly sluggish, like having no
accelleration in some applications. I haven't tested movie playback or other
things in that mode yet, and Firefox freezes at 100% CPU time when I visit some
sites like *sic* kernel bugzilla.

All that obvservations with the same kernel 3.18.1. I added the dmesg look
again, it contains something about r600 exception which looked related.

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[Bug 88921] System reboots upon suspending when Radeon 5770 card is used

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=88921

Eduard Bloch <blade@debian.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Eduard Bloch <blade@debian.org> ---
In the meantime, I replaced the gfx card with an Nvidia GTX750 and it just
works, with nouveau or nvidia. Nouveau crashes unless GLX is disabled, though,
but there are no such glitches WRT power management anymore.

If some kernel hacker wants this Radeon card for investigation, please let me
know. I am closing this bug now.

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