Created attachment 82452 [details]
dmesg with drm.debug=1
Description of problem:
I have installed new video card
01:00.0 VGA compatible controller : Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn XT [Radeon HD 7870 GHz Edition] [1002:6818]
with two monitors. After login in DE (KDE, Gnome, etc) first monitor shown in blue strips, second monitor disabled. System don't freeze, but monitors freezes.
Version-Release number of selected component (if applicable):
kernel-3.9.9-301.fc19.x86_64 (and 3.10.0-1.fc19.x86_64 and with drm-next too)
xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 (and git 2013-07-10 too)
Steps to Reproduce:
1. Plug videocard
2. connect two monitors (both DVI)
3. boot and login
monitors doesn't work
both monitors works
Videocard after 23 jan 2013 (not defective).
Perfectly works with proprietary driver. And with one monitor works too (open-source driver).
Created attachment 82453 [details]
/var/log/Xorg.0.log after login
Created attachment 82454 [details]
Created attachment 82455 [details]
Also bug in Fedora bugtracker https://bugzilla.redhat.com/show_bug.cgi?id=981759
*** This bug has been marked as a duplicate of bug 64850 ***