GPU hangs on high temperatures

[christian_spinn]

We're using a imx6 SoloX processor in our application. 

Temperature tests show that on high temperatures (CPU temp at 80°C) the GPU seems to hang or extrmely slow down. 

Reducing the temperature lets the GPU behave in a normal way.

Is there a known issue regarding temperature and GPU?

Is there a possibility to check GPU status, temperature and/or frequency?

Best Regards

Christian

[Bio_TICFSL]

Hi Christian,

You might have enable the thermal driver, at low temperature when reaching passive point, cooling device will lower CPU frequency and notify GPU to run at a lower frequency, check it at <Yocto_BuildDir>/linux/drivers/thermal.

imx_thermal.c, device_cooling.c   , for thermal zone driver source file

Regards