Bug 48386 - laptop screen black after removal of external monitor when laptop not at origin (top left) of desktop
Summary: laptop screen black after removal of external monitor when laptop not at orig...
Status: RESOLVED INVALID
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/Ext/RandR (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Xorg Project Team
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-04-06 09:17 UTC by John Heidemann
Modified: 2018-06-12 18:43 UTC (History)
0 users

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Description John Heidemann 2012-04-06 09:17:36 UTC 
I'm running Xrandr with a laptop (ASUS UX31E) and external monitor
(several different Dell LCDs, connected by VGA).
In one situation described below,
removing the external monitor hangs X with a black
display.

(OS: Fedora 16, xorg-x11-server-Xorg-1.11.4-2.fc16.x86_64,
xorg-x11-drv-intel-2.17.0-8.fc16.x86_64)

Hotplugging all works great, as long as the laptop is at the top-left
corner and the external monitor top-aligned in xrandr (configured with
the gnome-3 displays GUI).  I.e.:

+------+-------------+
|laptop|  external   |
+------+             |
       |             |
       +-------------+

Because the external monitor is physically flush with the bottom of
the laptop, not the top, I tried this configuration:

       +-------------+
       |             |
+------+             |
|laptop|  external   |
+------+-------------+

where the laptop is not at the origin.

This configuration works fine when ADDING the external monitor,
but fails when the monitor is removed:
the laptop screen goes black after removing the external monitor.

Other virtual consoles are OK.

Killing Xorg recovers, but is of course painful.

Expected behavior: laptop should reconfigure back to origin after
external monitor is removed; display should not be black.

Work-around: keeping the laptop at the top-left origin seems to be
stable.
Comment 1 Adam Jackson 2018-06-12 18:43:50 UTC 
Mass closure: This bug has been untouched for more than six years, and is not obviously still valid. Please file a new report if you continue to experience issues with a current server.

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