Public bug reported:
Binary package hint: displayconfig-gtk
Hello,
I previously reported a bug on the screen becoming scrambled when I set
up a dual screen setup on my IBM ThinkPad T40 that has a Mobility Radeon
7500. That does not happen any more with the latest Gutsy beta and
today's distribution upgrade (2007-10-06).
However I can't displayconfig-gtk to work for me at all. I have tried
choosing the ati and radeon drivers but neither has made any difference
and I have concentrated on using the 'ati' driver.
With both I cannot set the secondary display to be a secondary display.
I can either enable it as the primary or disable it and same with the
primary display. The laptop has a standard XGA panel, and my monitor I
am testing is a Dell E772p CRT monitor.
If I disable the primary screen (that's the icon on the left that looks
like a laptop) and set the secondary screen to be the Dell, use a basic
1024x768 which I know the E772p can do and it fails to start X, which
leads me to the bullet proof X dialog asking me if I wish to configure
which I do and I set the laptop back to be the default, use a generic
1024x768 display panel at 60Hz and it works.
If I click 'test' on setting the E772p to be the default screen and
disable the LCD, displayconfig-gtk starts to make the changes and then
just exits and puts the E722p into standby.
I have tried this when booting with the monitor plugged in and when hot
plugging.
FN+F7 (Switch between LCD, Monitor, LCD+Monitor output) does allow me to
mirror but I can do this on Feisty at the moment anyway.
Essentially all the controls to configure a secondary screen are
disabled. I have chosen the ati driver, and it does say ati in
xorg.conf.
I'll attach the output from ddcprobe, xrandr, and parse-edid and my
current xorg.conf in a moment.
Interestingly ddcprobe pulls out the correct details but Xrandr since
the release upgrade (I had installed a vanilla copy of Ubuntu 7.10 Beta)
does not, whereas on the LiveCD it did... Could this be a hint?
Hope this can be sorted as this is a major reason for moving to Gutsy
and so far my experience with display config-gtk has been...not too
good.
I have checked this isn't a duplicate and I hope it's not, but I
couldn't see a similar post/issue.
Thanks,
Vicky
** Affects: displayconfig-gtk (Ubuntu)
Importance: Undecided
Status: New
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Cannot set up dual screens on Mobility Radeon 7500 (IBM ThinkPad T40)
https://bugs.launchpad.net/bugs/149819
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