[Bug 73116] [R9 270x] Intermittent flickering of entire screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73116

--- Comment #8 from Hadrien Lacour <hadrien.lacour at posteo.net> ---
Hello, another one experiencing it here (nothing in Xorg.0.log or dmesg).

uname -a: Linux gentoo 4.14.8-gentoo #1 SMP Wed Dec 20 20:09:58 CET 2017 x86_64
AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux
GPU: VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Ellesmere [Radeon RX 470/480] (rev e7)
Xorg: 1.19.5
Xorg.conf.d: default amdgpu settings
Mesa: 17.3

Setting /sys/class/drm/card0/device/power_dpm_force_performance_level to high
or low does fix it.

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