https://bugs.freedesktop.org/show_bug.cgi?id=98324
--- Comment #11 from Darren Salt bugspam@moreofthesa.me.uk --- Created attachment 139326 --> https://bugs.freedesktop.org/attachment.cgi?id=139326&action=edit Bad EDID output (4.17-rc3 + DC)
Once this happens (after VESA blanking long enough for the problem monitor to fully go to sleep), it persists until reboot.