** Package changed: xserver-xorg-video-intel (Ubuntu) = gnome-desktop
(Ubuntu)
** Changed in: gnome-desktop (Ubuntu)
Status: Incomplete = Confirmed
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Ok. When xrandr turns off the LVDS display, the *only* thing it does is
set the LVDS' CRTC to off.
Tracing through gnome-desktop's RANDR code, on the other hand, we have:
0) Grab the server
1) First, set all CRTCs to off.
2) Now, foreach output, assign the first valid CRTC to it
2*) If some
Ok - I think I see the same thing, and I think it's actually a gnome-
desktop problem (or, at least, is only triggered by gnome-desktop's
RANDR stuff). Can you please check whether running xrandr --output
LVDS1 --off successfully turns off the laptop panel without breaking
the external display?
In case my previous comment was not clear, what I want is:
1) Set up a spanned laptop + external display configuration. This works,
correct?
2) Open up a terminal, and run xrandr --output LVDS1 --off. This should turn
off your laptop panel, leaving only the external display active. It should
Yes, confirmed this works, so your diagnosis looks correct :)
I did the following:
1) Set up a spanned laptop + external display configuration. This works,
correct?
Correct this works fine and the main display works at my full resolution
1900x1200
2) Open up a terminal, and run xrandr --output
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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I have the same driver on an Lenovo x200 in Millbank. The attached
screen is a HP LP2475w which works flawlessly with Natty at 1920x1200.
On Oneiric it's regressed so you can use it over two screens but as soon
as I try and turn off the laptop screen the HP screen goes funky: it's
even worse than
** Changed in: xserver-xorg-video-intel (Ubuntu)
Assignee: (unassigned) = Canonical Desktop Team (canonical-desktop-team)
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Rick suggested trying to switch to VT1 and then back. This didn't work,
but this is what I did:
1. Switch laptop screen off (FN+F7)
This causes the HP main screen to go haywire
2. Switch to VT1
Use 'ctrl+alt+F1' to get to the terminal
3. Switch back to X
Use 'ctrl+alt+f7'. Unfortunately the
** Tags added: corruption
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https://bugs.launchpad.net/bugs/861426
Title:
[Oneiric] [Regression] When disabling onboard LVDS display and just
using external
** Package changed: xorg (Ubuntu) = xserver-xorg-video-intel (Ubuntu)
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https://bugs.launchpad.net/bugs/861426
Title:
[Oneiric] [Regression] When disabling
** Attachment added: corrupted screen, right hand third all blurred, the rest
of the screen shows interference
https://bugs.launchpad.net/bugs/861426/+attachment/2474474/+files/IMG_8495.JPG
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