[Intel-gfx] [PATCH v4 0/2] drm/i915/opregion: proper handling of DIDL and CADL

[Rainer Koenig]

Found a problem: After screensaver kicked in and display was turned off
the brightness keys stop working.

Problem can be reproduced like that:

1. Boot laptop
2. Test brightness keys, they are working
3. open Terminal and issue "xset -display :0 dpms force off"
4. the screen goes blank (like after the screensaver timeout)
5. push a key to bring the screen back
6. test brightness keys again, now they don't work

If the system is sent to suspend and woken up everything is fine again.

Behaviour happens on the 4.7.0-rc5 kernel from the opregion-didl-v4 branch.
Before I compiled the 4.7.0-r4 from the same git repository. On this
(v3) everything still works after the screen was blanked.

Best regards
Rainer

Am 30.06.2016 um 11:19 schrieb Rainer Koenig:
> Am 29.06.2016 um 17:36 schrieb Jani Nikula:
>> This is v4 of [1]. The first three have already been pushed to
>> drm-intel-next-queued. The only change here is the atomic commit.
>>
>> Review and testing would be much appreciated to move this forward. For
>> testing, I've pushed this to opregion-didl-v4 branch of my repo at [2].
>>
> Tested on a Fujitsu LIFEBOOK E736: Brightness keys are working now.
>
> Best regards
> Rainer
>


-- 
Dipl.-Inf. (FH) Rainer Koenig
Project Manager Linux Clients
FJ EMEIA PR PSO PM&D CCD ENG SW OSS&C

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