Re: [Intel-gfx] [PATCH v8 1/2] drm: Add connector property to limit max bpc

2018-09-18 Thread Alex Deucher
+ Harry, Leo This would definitely be useful. We ran into a lot of issues when we enabled >8 bpc support. On Tue, Sep 18, 2018 at 2:10 PM Radhakrishna Sripada wrote: > > At times 12bpc HDMI cannot be driven due to faulty cables, dongles > level shifters etc. To workaround them we may need to

Re: [Intel-gfx] [PATCH v8 1/2] drm: Add connector property to limit max bpc

2018-09-18 Thread Ville Syrjälä
On Tue, Sep 18, 2018 at 11:11:14AM -0700, Radhakrishna Sripada wrote: > At times 12bpc HDMI cannot be driven due to faulty cables, dongles > level shifters etc. To workaround them we may need to drive the output > at a lower bpc. Currently the user space does not have a way to limit > the bpc. The

[Intel-gfx] [PATCH v8 1/2] drm: Add connector property to limit max bpc

2018-09-18 Thread Radhakrishna Sripada
At times 12bpc HDMI cannot be driven due to faulty cables, dongles level shifters etc. To workaround them we may need to drive the output at a lower bpc. Currently the user space does not have a way to limit the bpc. The default bpc to be programmed is decided by the driver and is run against