https://bugs.freedesktop.org/show_bug.cgi?id=80029
--- Comment #2 from Mario Kleiner mario.kleiner@tuebingen.mpg.de --- Hi,
does it work with some video modes, or none of them?
Can you give me the edid of your hdmi display? Either "xrandr --verbose" output or the Xorg log?
And the syslog when booting with drm.debug=1 at the kernel command line. I think "cat /var/log/syslog | grep drm" for the lines which contain "drm" would be enough.
These EDID errors also happened before, right?
thanks, -mario