Comment 5 for bug 1266984
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| Michael Murphy (mmstick) wrote Re: Kernel 3.13-rc7 [AMD Radeon HD 6800] System Crashes and Reboots | #5 |
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0e1f616
(Get the code!)
I haven't tried any upstream kernels since I just automatically update to the latest kernel in the Ubuntu Mainline PPA with a script. All 3.13 rc kernels and even the new 3.13-generic which is now in Trusty stable repos have the crashing issues with my two Radeon HD 6800 machines. I found that if I disable DPM by editing /etc/default/grub and adding radeon.dpm=0 to CMDLINE_LINUX that the crashing stops, so it is definitely related to issues with AMD's Dynamic Power Management feature in kernel 3.13. Something broke between kernel 3.12 and 3.13 in regards to DPM but I wouldn't know what.