https://bugzilla.kernel.org/show_bug.cgi?id=200645 Duncan (1i5t5.duncan@xxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #277491|0 |1 is obsolete| | --- Comment #6 from Duncan (1i5t5.duncan@xxxxxxx) --- Created attachment 277749 --> https://bugzilla.kernel.org/attachment.cgi?id=277749&action=edit xrandr output (working at 60 Hz) The previous xrandr working output was with a setting on the 4K TV hooked up to HDMI-A-0 set wrong, so @3840x2160 it'd only give me 30 Hz (tho that shouldn't have mattered for this bug, since the problem is with DVI-D-0, not HDMI-A-0). This one has the TV set correctly so HDMI-A-0 will do 3840x2160 at full 60 Hz. The bug's still there on rc8, with a revert of the commit to once again force bpc <= 8 still fixing it (it's what I used to get this xrandr). So at this point it seems release will still be bugged. Comparing to the tested-fixed bug @ freedesktop that bisected to the same commit, the problem there was with the HDMI forced to 30 Hz @3840x2160, while here it's with no display on a 1920x1080 DVI-D, with the 3840x2160 HDMI-A behaving normally -- early-boot displays on the DVI-D and the HDMI-A at the usual low res, but the DVI-D goes blank as soon as it switches to DRM/hi-res, while the HDMI-A behaves entirely normally. And once in X, xrandr says there's no modes available for the (1920x1080-resolution) DVI-D, while again the 3840x2160 HDMI-A behaves entirely normally. So perhaps a similar fix to the one on that bug (and now in tree) for HDMI, is needed for DVI-D, tho it could be more than that as well, since (unlike the freedesktop bug) the DVI-D is entirely blank and xrandr says it has no modes, not even the low resolutions it was working with just fine in grub and early boot. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
