https://bugs.freedesktop.org/show_bug.cgi?id=100726
--- Comment #7 from hiwatari.seiji@gmail.com --- I already waited at least 1 week, before marking a commit as good. I guess I will have to try 2 weeks this time. This is going to take ages.
Are you sure, that b7d91c915290ab0bfbab84a0fb9c9eae57816982 is definitely not the cause?
Maybe some helpful information regarding the bug:
- It appears noticably more often, when rebooting to Linux after gaming in a dual-booted Windows. - When booting, the virtual console disappears, the screen displays black, the login-manager appears. When the flickering does not appear, the black-sequence (mode-setting?) takes noticably longer, than when the flickering appears. - We both have two displays. One connected through HDMI, one through DisplayPort. - I have two 2K screens, the Fury X-User has one 4K and one FullHD screen. - We both have the login-manager SDDM - 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.