Re: [PATCH] drm/i915/display Try YCbCr420 color when RGB fails

2021-05-03 Thread Ville Syrjälä
On Mon, May 03, 2021 at 01:39:04PM +0200, Werner Sembach wrote: > Thanks for the feedback. I got some questions below. > > On Thu, Apr 29, 2021 at 02:05:53PM +0200, Werner Sembach wrote: > >> When encoder validation of a display mode fails, retry with less bandwidth > >> heavy YCbCr420 color mode,

Re: [PATCH] drm/i915/display Try YCbCr420 color when RGB fails

2021-05-03 Thread Werner Sembach
Thanks for the feedback. I got some questions below. > On Thu, Apr 29, 2021 at 02:05:53PM +0200, Werner Sembach wrote: >> When encoder validation of a display mode fails, retry with less bandwidth >> heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups >> to support 4k60Hz out

Re: [PATCH] drm/i915/display Try YCbCr420 color when RGB fails

2021-04-30 Thread Ville Syrjälä
On Thu, Apr 29, 2021 at 02:05:53PM +0200, Werner Sembach wrote: > When encoder validation of a display mode fails, retry with less bandwidth > heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups > to support 4k60Hz output, which previously failed silently. > > AMDGPU had nea

[PATCH] drm/i915/display Try YCbCr420 color when RGB fails

2021-04-29 Thread Werner Sembach
When encoder validation of a display mode fails, retry with less bandwidth heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups to support 4k60Hz output, which previously failed silently. AMDGPU had nearly the exact same issue. This problem description is therefore copied fro

[PATCH] drm/i915/display Try YCbCr420 color when RGB fails

2021-04-28 Thread Werner Sembach
When encoder validation of a display mode fails, retry with less bandwidth heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups to support 4k60Hz output, which previously failed silently. AMDGPU had nearly the exact same issue. This problem description is therefore copied fro