Bug#625814: xserver-xorg-video-intel: Randomly activates external screen without one being connected
tag 625814 moreinfo
kthxbye
On Fri, May 6, 2011 at 09:58:51 +0200, Olivier Berger wrote:
> Package: xserver-xorg-video-intel
> Version: 2:2.15.0-1
> Severity: normal
>
> Sorry in advance if the X driver is not the cause.
>
> I experience an annoying situation where, at times, during a Gnome session, a non-connected external display is activated, which sets the desktop in dual-screen mode, with that virtual external display being set as primary display, hence makeing me lose the gnome panels.
>
> When displays are detected again by gnome-display-properties (launched with Alt+F2, FWIW, since no menus or icons are left to start it), everything goes back to normal situation : laptop with integrated screen only, as main display.
>
> Note also, that this sometimes happens, more or less in a similar way at X start, where the GDM login dialog is not visible, put on the not visible external display. Moving the mouse back (left) to the visible part and hitting return makes the dialog come back to visibility.
>
> Also, I'm not sure, but this may happen as I'm using synergyc connected to another computer which has the mouse and keyboard... but synergy is not active at X start, so if the 2 problems are related, then synergy is not the cause.
>
Is this still reproducible with an updated stack (linux 3.0 or 3.1, X
1.11, intel 2.16)? If yes please provide xrandr --verbose output from
the working and not-working cases, as well as dmesg when booting with
drm.debug=4 and the issue appears. Then file a bug upstream including
that info, according to
http://intellinuxgraphics.org/how_to_report_bug.html, and let us know
the bug number for tracking.
Cheers,
Julien
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