Comment # 4 on bug 101671 from xela

Some additional info:

Kernel: Linux lynn 4.11.6-gentoo #4 SMP Sat Jul 1 22:32:15 EEST 2017 x86_64
Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz GenuineIntel GNU/Linux

Xorg server: 1.19.3

Mesa: 17.1.3

xf86-video-intel: 2.99.917_p20170313

xf86-video-ati: 7.9.0

Running kernel with radeon.runpm=0 didn't change anything.

Let me know if I can help.

Thanks!