https://bugs.freedesktop.org/show_bug.cgi?id=75985 --- Comment #16 from Ilia Mirkin --- So an interesting thought here is that GRUB also supports the setpci command, and runs early enough for it to matter. This would be the functional equivalent of an early pci quirk. If someone having the issue could try adding setpci -s 01:00.0 0x488.l=0x2000000:0x2000000 to be run by grub, and reporting back whether that helped or not, with `lspci -nn -d 10de:` output, that'd be interesting to see. [Not everyone can use 01:00.0 -- double-check where your GPU is at. But that'll be right for most people.] -- You are receiving this mail because: You are the assignee for the bug.