Ping? Could somebody give this a review? Would be good to get the associated regressions in DVI/VGA output precision fixed in intel hw, also for stable kernels which regressed.
Resending the three patches... thanks, -mario On 03/28/2016 01:52 AM, Mario Kleiner wrote: > Bugzilla https://bugzilla.kernel.org/show_bug.cgi?id=105331 > > received a potential fix that was backported to stable. While that > patch itself is correct for treating DP video sinks with "unknown > color depth", it uncovered some lack in our general EDID 1.3 > handling, and in how we treat DP->DVI/VGA, causing the fall back > of Intel DP to 6 bpc / 18 bpp in cases where it shouldn't fall > back. That leads to unhappy neuroscience/medical users of Intel gpus > which need their DP->DVI or DP->VGA display devices to operate at at > least 8 bpc without dithering. > > The following three patches try to improve our EDID handling and > Intel DP to try harder to detect the proper bpc to avoid these > regressions for DP-DVI and DP-VGA. The third patch tries to fix > FDO bug 105331 without causing general unhappiness of other users. > > thanks, > -mario >
