From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 68571] GPU lockup on AMD Radeon HD6850 with DPM=1
Date: Sat, 01 Feb 2014 15:16:40 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=68571
--- Comment #18 from perry3d@gmail.com ---
You are right, its not PCIExpress 2.0 vs. 3.0. I forced it in the bios, no
improvment.
I also tried the drm-next-3.14 branch from Alex repository. Made it even worse:
freeze on boot. Before i reached kdm and sometimes i saw the desktop.
After applying the patch from
https://bugzilla.kernel.org/show_bug.cgi?id=68571#c5 i am on the same behaviour
like i was with stock kernel 3.13.
I discovered that there is no kernel panic. I can get back to KDM with the
SysRQ keys (Alt + Print + K).
Maybe its because my card is slightly overclocked by the factory:
http://msi.com/product/vga/R6870-Hawk.html (in compare with the reference card:
930Mhz vs 900Mhz).
Something else i can do?
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