[Bug 91459] New: Hard crash when logging out of X

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91459

            Bug ID: 91459
           Summary: Hard crash when logging out of X
           Product: xorg
           Version: git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: rankincj at googlemail.com
        QA Contact: xorg-team at lists.x.org

I have a Radeon HD4650 running in a Thinkpad docking station. The T60p laptop's
built-in M66GL chip has been disabled so that the HD4650 is the only graphics
device on the PCI bus:

lspci:
0c:00.0 0300: 1002:9498
0c:00.1 0403: 1002:aa38

The HD4650 has two DVI adapters, and one is attached to a 1920x1200 monitor.
The other is attached to a HDTV via an HDMI adapter, and the TV is not always
turned on.

When Fedora 22 was first released, I noticed that the laptop crashed (hard!)
whenever I logged out of X / GNOME shell, and had to be power-cycled to
restart. I have now narrowed the circumstances of this crash down to when the
TV is connected to the DVI port but not powered.

The laptop does not crash if either the TV is on or on stand-by, or if the HDMI
adapter is physically disconnected from the HD4650's DVI port.

I have not been able to find any log files relating to the crash.

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