Bug 848790

Summary:	Can't use an external monitor with lenovo w520
Product:	[Fedora] Fedora	Reporter:	Victor <butenko.v.w>
Component:	xorg-x11-drv-nouveau	Assignee:	Ben Skeggs <bskeggs>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	17	CC:	airlied, ajax, bskeggs
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-08-21 05:52:14 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Victor 2012-08-16 12:16:26 UTC

Description of problem:
X server cannot detect external monitor (VGA-2 is disconnected). Checked with NVIDIA Optimus and discrete videocards.
Fail to boot with discrete video-card and external VGA boot monitor. Error while booting: 
'[drm] Initialized drm 1.1.0 20060810'

System boots when integrated card is chosen and doesn't boot in the case of 'discrete card'. 



Version-Release number of selected component (if applicable):
xorg-x11-drv-nouveau-0.0.16-37.20120306gitf5d1cd2.fc17.x86_64

How reproducible:
always

Steps to Reproduce:
1.install Fedora 17
2.boot
3.plug external monitor
4.run xrandr
  
Additional info:

$ xrandr 
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1920x1080      60.0*+   50.0  
   1400x1050      60.0  
   1280x1024      60.0  
   1280x960       60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)

Comment 1 Ben Skeggs 2012-08-21 05:52:14 UTC

The external monitor not working from the Intel GPU is not a bug, it's expected due to the display not being physically connected to the Intel GPU.

It *should* work in Discrete mode however, and I'm marking this bug as a duplicate of the T520 Discrete mode hang bug.  It's likely the same cause.

*** This bug has been marked as a duplicate of bug 835648 ***