Bug 510057

Summary:	display detection does not work
Product:	[Fedora] Fedora	Reporter:	Matthias Clasen <mclasen>
Component:	xorg-x11-drv-intel	Assignee:	Adam Jackson <ajax>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	rawhide	CC:	ajax, dtimms, xgl-maint
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-08-14 19:38:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	509829

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.