Bug 437992

Summary: External HP LP3065 monitor w/ Thinkpad T60w will not light up
Product: Red Hat Enterprise Linux 5 Reporter: Cameron Meadors <cmeadors>
Component: xorg-x11-drv-i810Assignee: Adam Jackson <ajax>
Status: CLOSED NEXTRELEASE QA Contact: desktop-bugs <desktop-bugs>
Severity: low Docs Contact:
Priority: low    
Version: 5.2CC: xgl-maint
Target Milestone: rcKeywords: Reopened, Triaged
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-04-17 20:07:48 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:
Attachments:
Description Flags
Xorg log with both monitors plugged in
none
xorg log with only the HP plugged in none

Description Cameron Meadors 2008-03-18 15:57:59 UTC 
I am using the radeon-tp driver with an ATI Technologies Inc R580 [Radeon X1900
XT] video card.  When X starts all I get is a blinking green light on the
monitor.  The vga monitor I have plugged in via to the other dvi port works
fine.  If I only have the HP plugged in X I see nothing and the whole system
appears to hang (keyboard lights stop working).  I will attach two X logs: one
with both monitors plugged in and one with only the HP.
Comment 1 Cameron Meadors 2008-03-18 15:58:34 UTC 
Created attachment 298410 [details]
Xorg log with both monitors plugged in
Comment 2 Cameron Meadors 2008-03-18 15:59:05 UTC 
Created attachment 298411 [details]
xorg log with only the HP plugged in
Comment 3 Cameron Meadors 2008-03-27 15:18:25 UTC 
I am partially an idiot.  The LP3065 only does 1280x800 or 2560x1600.  Once I
set my display resolution to 1280x800 the HP lit up.  Works now.  Now to get
2560x1600 working.
Comment 4 Matěj Cepl 2008-03-27 16:36:47 UTC 
So, is this still a problem?
Comment 5 Cameron Meadors 2008-03-27 16:48:55 UTC 
Confusing, but not a problem any more.
Comment 6 Matěj Cepl 2008-03-27 17:48:59 UTC 
thanks a lot
Comment 7 Cameron Meadors 2008-04-03 14:59:27 UTC 
Reopening after more clarification on expected results.  Also complicated by
differences between snap2 and snap3 behavior.  Now testing on snap3

The real bug is that X should find 1280x800 as a common mode and use that.  It
does not.  LVDS is at 1680x1050.  Manually changing res with xrandr to 1280x800
lights up the external monitor which proves that there is a common mode.
Comment 8 Cameron Meadors 2008-04-03 15:04:17 UTC 
In snap 2 the external monitor lit up even if the mode was not 1280x800.  It
just displayed part of the 1680x1050 screen.
Comment 10 Adam Jackson 2012-04-17 20:07:48 UTC 
No further hardware enablement updates are planned for RHEL5's X stack.  If this issue remains in RHEL6, please update the affected product version and reopen this bug.