[Bug 112491] Radeon: HD 7400G / A4-4355M System overheats with 3D graphics active.

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=112491

--- Comment #12 from Dionisus Torimens <djtm at gmx.net> ---
[Wonderful, fglrx doesn't work at all with kernel 4.2... ...]

The fastest way to get the system to overheat is to
- enable redshift (or probably xgamma)
- disable vsync
- set dpm to preformance*
echo performance | sudo tee /sys/class/drm/card0/device/power_dpm_state
- activate cpu turbo mode*
echo 1 | sudo tee /sys/devices/system/cpu/cpufreq/boost
- activate BAPM
- activate DRI3
- stay in the game menu (tested with blazrush, kotor)

* Here the effect is not that certain/serious.

Things that help to avoid overheating:
- boot with nomodeset radeon.modeset=1

#vblank_mode=0 glmark2 --run-forever 
does not cause a hang, some of the tests seem less demanding, so the
temperature does up and down.

GALLIUM_HUD=temperature is helpful to watch how fast the temperature clims.

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