[Intel-gfx] [PATCH] backlight: Don't read back backlight setting from kernel on DPMS off

[Hans de Goede]

Hi,

On 06/07/2014 01:12 PM, Chris Wilson wrote:
> On Sat, Jun 07, 2014 at 12:18:35PM +0200, Hans de Goede wrote:
>> Hi,
>>
>> On 06/06/2014 04:51 PM, Chris Wilson wrote:
>>> commit c6cd10f536e099277cdc46643725a5a50ea8b525
>>> Author: Chris Wilson <chris at chris-wilson.co.uk>
>>> Date:   Thu Jun 5 22:43:37 2014 +0100
>>
>> Thanks, I fail to see how this addresses the original problem though,
>> current master still reads back the backlight from the kernel at DPMS
>> off, so the problem my original patch in this thread tries to fix
>> still exists AFAIK, we will still read back 0 on DPMS off in the
>> scenario my patch tries to address.
> 
> It changes the sequence in which output->funcs->dpms is called to
> prevent the bug.

Thanks, I don't see that being changed in the above commit though,
and I cannot find the commit in which it does change, can you point
me to the commit where this is changed ?

Regards,

Hans