Created attachment 806640 [details] dmesg > dmesg.log Description of problem: Problem appears with kernel 3.11 Version-Release number of selected component (if applicable): xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 kernel-3.11.2-201.fc19.x86_64 How reproducible: at every boot, when loading kdm Steps to Reproduce: 1. just boot Actual results: no desktop Expected results: kdm login screen Additional info: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV770 [Radeon HD 4850]
Created attachment 806641 [details] lspci > lspci.log
Created attachment 806642 [details] /var/log/messages
happens on my HD7790 too with 3.12.5 Kernel on Fedora 20 screen blackouts are random but regular - about once per hour. 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XT [Radeon HD 7790/8770] xorg-x11-drv-ati-7.2.0-3.20131101git3b38701.fc20.x86_64
the restarts seem to be far less frequent when using a secondary DVI output of the card.
Same on my HD7790 too with 3.12.6 Kernel on Fedora 20 Easy to reproduce ( one minute ), more likely when using graphics "hard" 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XT [Radeon HD 7790/8770] Linux w 3.12.6-300.fc20.x86_64 #1 SMP Mon Dec 23 16:44:31 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux xorg-x11-drv-ati-7.2.0-3.20131101git3b38701.fc20.x86_64
Created attachment 845415 [details] output from journalctl
I switched back to my old HD5450 and this one seems to be unaffected. Also, this thread seems to be raleted https://bugzilla.kernel.org/show_bug.cgi?id=61941
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