[Nouveau] [Bug 23466] New: xrandr --rotate normal crashes system

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23466

           Summary: xrandr --rotate normal crashes system
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: seventhguardian at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=28853)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=28853)
The Xorg.0.log with ModeDebug on

I'm running all-git versions of X components. I can xrandr --rotate left,right
and inverted. The problem is when rotating back to normal.

If the display is rotated "inverted", issuing "xrandr --output LVDS-0 --rotate
normal" leads to a black screen or a console (VT1 for instance) painted screen.
Moving the mouse around paints the X display contents where it passes. If I
change VT to a console and then back, everythings goes back to normal.

If the display is rotated either "left" or "right", issuing "xrandr --output
LVDS-0 --rotate normal" seems to crash the system. I get no more log entries,
not even when SysRq sync'ing. But I can SysRq reboot.

I've made some tests with Option "ModeDebug" "on". I'll attach both the
Xorg.0.log and the relevant part of the system log.


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