https://bugs.freedesktop.org/show_bug.cgi?id=79980

--- Comment #222 from fdb4c415@opayq.com ---
I would like to inform you I got the same problem. My box freezes randomly.
Keyboard is almost dead, mouse sometimes working (pointer moves, but cannot
click on anything) and usually I can only ssh into that box - to reboot it.
Sometimes Ctrl-Alt-F1 works and I can log in, but sometimes not. The monitor
switches repeatedly: no signal/black screen/no signal/black screen/...
In the log I can see quite similar messages:
radeon 0000:01:00.0: GPU lockup (waiting for 0x0000000000002258 last fence id
0x0000000000002255 on ring 0)
VM fault (0x04, vmid 1) at page 30481, read from DMA1 (61)

I have the latest debian test 64 bit installed:
Linux <host> 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt2-1 (2014-12-08) x86_64
GNU/Linux
and I have:
VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde
PRO [Radeon HD 7750 / R7 250E]

Is there any way to fix it?

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