Cooling ATI graphics card

With the recent increase in temperature, aiji began to launch a hot wave. Recently, the temperature of my colleague's book rose to more than 90 degrees. Although the tool was used to remove the machine, the effect was not good.

Later it was found that the machine was an ATI Video card, so the following boot parameters were passed to the Kernel:

Radeon. dpm = 1

I did not expect the results to be very good, but now it has dropped to more than 50 degrees.

It has been verified that the Linux kernel has added the dynamic power management function for the Radeon card since 3.11. The above parameters are used to activate this feature.

In addition, you can use the following command to check the status of Dynamic Power Management:

Cat/sys/class/drm/card0/device/power_dpm_state

You can also change it:

Echo "performance">/sys/class/drm/card0/device/power_dpm_state

Other valid options include battery and balanced.

If you have encountered a similar problem, try again.