Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-14 Thread Jani Nikula
On Tue, 05 Oct 2021, "Souza, Jose" wrote: > On Tue, 2021-10-05 at 23:38 +0300, Jani Nikula wrote: >> On Tue, 05 Oct 2021, "Souza, Jose" wrote: >> > On Tue, 2021-10-05 at 20:56 +0300, Jani Nikula wrote: >> > > For the time being, neither the power sequencer nor the backlight code >> > > properly s

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-06 Thread Ville Syrjälä
On Tue, Oct 05, 2021 at 10:30:04PM +0300, Jani Nikula wrote: > On Tue, 05 Oct 2021, Ville Syrjälä wrote: > > On Tue, Oct 05, 2021 at 08:56:36PM +0300, Jani Nikula wrote: > >> For the time being, neither the power sequencer nor the backlight code > >> properly support two eDP panels simultaneously.

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Souza, Jose
On Tue, 2021-10-05 at 23:38 +0300, Jani Nikula wrote: > On Tue, 05 Oct 2021, "Souza, Jose" wrote: > > On Tue, 2021-10-05 at 20:56 +0300, Jani Nikula wrote: > > > For the time being, neither the power sequencer nor the backlight code > > > properly support two eDP panels simultaneously. While the s

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Jani Nikula
On Tue, 05 Oct 2021, "Souza, Jose" wrote: > On Tue, 2021-10-05 at 20:56 +0300, Jani Nikula wrote: >> For the time being, neither the power sequencer nor the backlight code >> properly support two eDP panels simultaneously. While the software >> states will be independent, the same sets of register

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Souza, Jose
On Tue, 2021-10-05 at 20:56 +0300, Jani Nikula wrote: > For the time being, neither the power sequencer nor the backlight code > properly support two eDP panels simultaneously. While the software > states will be independent, the same sets of registers will be used for > both eDP panels, clobbering

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Jani Nikula
On Tue, 05 Oct 2021, Ville Syrjälä wrote: > On Tue, Oct 05, 2021 at 08:56:36PM +0300, Jani Nikula wrote: >> For the time being, neither the power sequencer nor the backlight code >> properly support two eDP panels simultaneously. While the software >> states will be independent, the same sets of r

Re: [Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Ville Syrjälä
On Tue, Oct 05, 2021 at 08:56:36PM +0300, Jani Nikula wrote: > For the time being, neither the power sequencer nor the backlight code > properly support two eDP panels simultaneously. While the software > states will be independent, the same sets of registers will be used for > both eDP panels, clo

[Intel-gfx] [PATCH] drm/i915/bios: gracefully disable dual eDP for now

2021-10-05 Thread Jani Nikula
For the time being, neither the power sequencer nor the backlight code properly support two eDP panels simultaneously. While the software states will be independent, the same sets of registers will be used for both eDP panels, clobbering the hardware state and leading to errors. Gracefully disable