Bug 771270

Summary: [Intel_Linux]Stops at the RHEL start bar while connecting VGA+DP-HDMI.
Product: Red Hat Enterprise Linux 6 Reporter: Xiao Yousheng <xiaoys>
Component: xorg-x11-drv-intelAssignee: Adam Jackson <ajax>
Status: CLOSED NOTABUG QA Contact: Desktop QE <desktop-qa-list>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 6.2CC: tpelka
Target Milestone: rc   
Target Release: 6.2   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-02-13 17:48:22 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
Stops at the RHEL start bar while connecting VGA+DP-HDMI none

Description Xiao Yousheng 2012-01-03 03:48:19 UTC
Created attachment 550350 [details]
Stops at the RHEL start bar while connecting VGA+DP-HDMI

Description of problem:
Stops at the RHEL start bar while connecting VGA+DP-HDMI

Version-Release number of selected component (if applicable):
SYSTEM SN OR ID: 
Form Factor: 
Planar Type: IS77M 
Planar Level: Rev:0.3A 
Planar SN: 11S11200466UUMH51AV119 
BIOS Level: 9SKT13A 
Monitor:Dell 2408/HP LP2475w 
Video Adapter: Intel Q3B3 
Audio Adapter: Onboard 
PCI-Express 16X : 
PCI-Express 1X  : 
Video BIOS: 
PCI1 Slot        : 
PCI2 Slot        : 
Keyboard: USB Keyboard 
Mouse: USB Mouse 
CPU    :Intel Q3B3

How reproducible:


Steps to Reproduce:
   1:Install RHEL 6.2 beta with DP to HDMI cable 
   2:System can boot into Desktop 
   3:Power off ,connect D-Sub+"DP to HDMI" cable and then power on 
   4:System can't boot into Desktop 
   5:System stops in the RHEL start bar.  
Actual results:


Expected results:


Additional info:

Comment 2 Adam Jackson 2012-01-03 18:47:16 UTC
You appear to be booting with 'nomodeset' on the kernel command line.  This is, broadly speaking, unsupported.  Why are you doing that?

Comment 4 Adam Jackson 2012-02-13 17:48:22 UTC
Closing per comment #2.  'nomodeset' is a diagnostic tool only, not a supported configuration.  If you can reproduce this issue without 'nomodeset' on the kernel command line, please reopen.