Bug 105851 Xserver 1.20 RC2+ issues with Kwin + Present 1.2

[Mike Lothian]

I've also noticed the AMDGPU powers up each time I play a video -
either using SMplayer or on Chromium

[50458.810260] snd_hda_codec_ca0132 hdaudioC0D0: ca0132 DSP downloaded
and running
[50459.699224] [drm] PCIE GART of 1024M enabled (table at 0x000000F400000000).
[50459.797265] [drm] UVD initialized successfully.
[50460.008408] [drm] VCE initialized successfully.
[50465.175833] amdgpu 0000:01:00.0: GPU pci config reset

I used to see this before the drmDevice2 (my memory is a bit fuzzy)
stuff landed, so the device wouldn't power up when the device node was
probed

On 11 April 2018 at 22:53, Mike Lothian <mike at fireburn.co.uk> wrote:
> The journal.freeze I mentioned but was too big to attach
>
> On 11 April 2018 at 22:53, Mike Lothian <mike at fireburn.co.uk> wrote:
>> Hi
>>
>> Hopefully 3rd time lucky (sorry Roman)
>>
>> I've done some more testing. The flashing I was seeing with Xserver
>> 1.19.5 goes away when I use egl rather then glx with Kwin - I won't be
>> using egl in any of the next tests
>>
>> When I use Xserver 1.20 RC4 with Intel/AMDPGU DDXs Kwin doesn't start
>> - the X server is running (I'm attaching logs) - that's the case
>> whether compositing is enabled or not in Kwin
>>
>> With the modesetting driver, Kwin launches with compositing enabled or
>> disabled. However the lockups in plasmashell are still present. These
>> happen with compositing enabled or disabled too. Simplest way to
>> reproduce - press the start button multiple times until it locks up
>> (usually within 4 times) - leaving it overnight, it seems to have
>> unlocked itself. Alternatively "killall -9 plasmashell && sleep 1 &&
>> plasmashell" sorts it from "Alt + F2". I've attached the journal again
>> just after a freeze (journalctl.freeze in the next email)
>>
>> Cheers
>>
>> Mike