[Bug 100726] [REGRESSION][BISECTED] Severe flickering with an R9 290

https://bugs.freedesktop.org/show_bug.cgi?id=100726

--- Comment #8 from Michel Dänzer michel@daenzer.net --- (In reply to hiwatari.seiji from comment #7)

Are you sure, that b7d91c915290ab0bfbab84a0fb9c9eae57816982 is definitely not the cause?

At least 99% sure. Pure merge commits are almost never a correct bisection result.

• For me, when booting the machine (BIOS) - the screen resolution of GRUB is

quite random. Sometimes, it's using the native screen resolution, sometimes it is using a very reduced resolution. Sometimes, it's only displaying on one of the two screens, sometimes it's displaying on both. But that wasn't a problem before linux-4.9.

This is before the Linux kernel is even loaded, so it can hardly be directly related to it.