[pull] amdgpu dc drm-next-4.15-dc

[Dieter Nützel]

Am 22.10.2017 23:48, schrieb Dieter Nützel:
> Am 21.10.2017 23:22, schrieb Alex Deucher:
>> Hi Dave,
>> 
>> Last batch of new stuff for DC. Highlights:
>> - Fix some memory leaks
>> - S3 fixes
>> - Hotplug fixes
>> - Fix some CX multi-display issues
>> - MST fixes
>> - DML updates from the hw team
>> - Various code cleanups
>> - Misc bug fixes
> 
> Now this tree has the same fan regression as 'amd-staging-drm-next'
> startet with 0944c350c8eddf4064e7abb881dd245032fdfa23.
> 
> Look here:
> [amd-staging-drm-next] regression - no fan info (sensors) on RX580
> https://lists.freedesktop.org/archives/amd-gfx/2017-October/014065.html
> 
> Second:
> KDE's greeter 'kdm_greet' (login screen went into dpms) and KDE's
> 'screen blank' (energy saving / dpms off) never came back. All I can
> do is a clean reboot. So I have to disable all 'dpms'.
> But I could attach gdb remotely on it.
> 'kdm_greet' hang in 'poll'.
> Nothing alarming in 'dmesg' and 'Xorg.0.log'. (Both available taken
> from 'amd-staging-drm-next' if needed).

Hello Alex and Rex,

I've found good hint from Jan (randomsalad) on phoronix for the 'screen 
blank' (monitor standby mode):
https://www.phoronix.com/forums/forum/phoronix/latest-phoronix-articles/984483-amdgpu-dc-gets-a-final-batch-of-changes-before-linux-4-15?p=984555#post984555

My Reply:
https://www.phoronix.com/forums/forum/phoronix/latest-phoronix-articles/984483-amdgpu-dc-gets-a-final-batch-of-changes-before-linux-4-15?p=984581#post984581

I can swear, that I could 'return' one time (the first time, maybe due 
to only warm reboot) on 'drm-next-4.15-dc-wip' directly from within KDE 
session with replugging the video cable, but for all later tests on both 
kernels I have to blindly switching back to login screen (kdm_greet) and 
then replugging the video cable.

For me these regression started with 'amd-staging-drm-next' much earlier 
than with the latest commit.

Dieter