Description of problem: On friday I upgraded my system to Fedora 17 using preupgrade. When logging into gnome3, the system freezes: the mouse cursor is suddenly pinned on the left side of the screen, top shows Xorg as taking just under 100% of the CPU, and login fails to progress. I have to remotely "killall -9 Xorg" to return to the login screen. The gdm login screen does seem to be responsive, though, so Xorg isn't entirely broken. I also have notion (the current incarnation of the ion3 WM) on this machine, and I couldn't log into a notion session, either. I could log into a fluxbox session, however. I started commenting out lines in my .xsession file (that I use to log into notion), and I found that the line causing the problem is: xrandr --output DVI-0 --left-of VGA-0 Once I commented out that line, I could log into a notion session just fine. My gnome3 session also has the monitors "switched", and I assume that gnome3 uses xrandr to do that at startup, which is why I couldn't log into gnome3 either. I've no idea if the problem is xorg, xrandr, or the radeon driver I'm using. Version-Release number of selected component (if applicable): xorg-x11-server-utils-7.5-12.fc17.x86_64 xorg-x11-drv-ati-6.14.4-5.20120417git0bda305f7.fc17.x86_64 How reproducible: Locks up every time. Steps to Reproduce: 1. xrandr --output DVI-0 --left-of VGA-0 2. 3. Actual results: 100% CPU usage, Xorg locks up, mouse cursor pinned to left side of screen. Expected results: None of the above. Additional info:
Created attachment 579596 [details] Xorg.0.log (no xorg.conf file)
Created attachment 579599 [details] Xorg.0.log (no xorg.conf file)
Created attachment 579605 [details] smolt profile
Created attachment 579622 [details] dmesg w/ drm.debug=14 log_buf_len=16M
Booting w/ "nomodeset" breaks xrandr (as far as I can tell), so I can't test w/ nomodeset on the boot line.
Probably a radeon driver bug (either userspace or kernel).
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Fedora 17 changed to end-of-life (EOL) status on 2013-07-30. Fedora 17 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.