Bug 510057 - display detection does not work
Summary: display detection does not work
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-intel
Version: rawhide
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: fitandfinish
TreeView+ depends on / blocked
Reported: 2009-07-07 15:15 UTC by Matthias Clasen
Modified: 2009-08-14 19:38 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-08-14 19:38:48 UTC
Type: ---

Attachments (Terms of Use)

Description Matthias Clasen 2009-07-07 15:15:13 UTC
On a T61 with 965 graphics.

I plug in an external monitor into the laptops vga port. Then I click Fn-F7 to make my desktop detect the new monitor, but it doesn't. The display flickers, indicating that probing is happening, but the new monitor does not show up.

Same result when using the 'Detect Monitors' button in g-d-p.

Running xrandr shows VGA1 as 'disconnected'.

Switching vts and back makes the external monitor magically come to life. 

After that, it shows up in g-d-p as expected.

Comment 1 Matthias Clasen 2009-07-07 16:22:15 UTC
Surprisingly, plugging a projector into the same laptop works really well.

Comment 2 David Timms 2009-07-08 14:15:58 UTC
(In reply to comment #1)
> Surprisingly, plugging a projector into the same laptop works really well.  
Is it worth noting the manu/model of the working / not working displays ?
Perhaps it is a particular class of displays that are problematic ?

Comment 3 Matthias Clasen 2009-08-14 19:38:48 UTC
This works fine for me now, with the same hardware that I tested at the test day.

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