[Mesa-dev] Resetting Video card without rebooting?

[Emil Velikov]

On 17/03/14 15:36, Dorrington, Albert wrote:
> I'm curious if there is any way to reset/restart the video card via Mesa or the libdrm drivers?
> 
> I'm currently doing development against the OpenCL drivers, and getting the video card into a state where is will not respond.
> The only way I can get things cleaned up is by rebooting my Linux box, but I would think there would be some way to 'kick' the video card and get it to reinitialize.
> 
> I'm running my Linux box headless, so I'm not worried about taking out the X display manager.
> 
AFAIK all drivers handle gpu lockups except for nouveau. I have
successfully brought my geforce gpu back to normal using a s2r cycle
although your experience may vary.

Considering that you're working on opencl I would imagine that you're
working on amd/ati hardware the driver for which should attempt a GPU
reset. Doing the s2ram trick might help as well.

-Emil#


> Al Dorrington
> Software Engineer Sr
> Lockheed Martin, Mission Systems and Training
> 
> 
> 
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