Red Hat Bugzilla – Bug 431362
X doesn't start with laptop lid closed
Last modified: 2009-01-09 02:38:41 EST
Description of problem:
X doesn't start with laptop lid closed. It panic without finding a screen.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Power on the computer.
2. Close the display lid.
3. wait a long time (2 min on my T42) until fedora finish booting and start gdm
Instead of the gdm welcome window, what I saw is a blue screen which informs me
X failed to start and which tries to guide me to mess up my Xorg.conf.
When I open the laptop lid again, the gdm screen should be displayed.
It looks like a very deep problem in X.
If the lid is closed, the video chip is shutdown or the video chip will report
the display device(aka screen) is unplugged. On my laptop the case is radeon
driver fails to set the display mode since no display device is connect. Then
our little X server is screwed.
To avoid this, X need to obtain the ability to start with a dumb screen, and
switch to a new screen on the fly. I've heard that the latest X will support
dynamical device plugging. Maybe or not this new feature will help.
login as root
Created attachment 293837 [details]
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