Re: [Intel-gfx] [PATCH] drm/i915/mst: re-enable link training failure fallback for DP MST

2022-03-08 Thread Jani Nikula
On Mon, 07 Mar 2022, Ville Syrjälä wrote: > On Mon, Mar 07, 2022 at 09:36:57PM +0200, Jani Nikula wrote: >> Commit 80a8cecf62a5 ("drm/i915/dp_mst: Disable link training fallback on >> MST links") disabled link training failure fallback for DP MST due to >> the MST manager using the DPCD directly,

Re: [Intel-gfx] [PATCH] drm/i915/mst: re-enable link training failure fallback for DP MST

2022-03-07 Thread Lyude Paul
On Mon, 2022-03-07 at 22:48 +0200, Ville Syrjälä wrote: > On Mon, Mar 07, 2022 at 09:36:57PM +0200, Jani Nikula wrote: > > Commit 80a8cecf62a5 ("drm/i915/dp_mst: Disable link training fallback on > > MST links") disabled link training failure fallback for DP MST due to > > the MST manager using

Re: [Intel-gfx] [PATCH] drm/i915/mst: re-enable link training failure fallback for DP MST

2022-03-07 Thread Ville Syrjälä
On Mon, Mar 07, 2022 at 09:36:57PM +0200, Jani Nikula wrote: > Commit 80a8cecf62a5 ("drm/i915/dp_mst: Disable link training fallback on > MST links") disabled link training failure fallback for DP MST due to > the MST manager using the DPCD directly, and generally being ignorant > about the

[Intel-gfx] [PATCH] drm/i915/mst: re-enable link training failure fallback for DP MST

2022-03-07 Thread Jani Nikula
Commit 80a8cecf62a5 ("drm/i915/dp_mst: Disable link training fallback on MST links") disabled link training failure fallback for DP MST due to the MST manager using the DPCD directly, and generally being ignorant about the possibility of downgrading link parameters. See the commit for further