Actually, they did end up working for me, with the one exception that
desktop effects won't work (properly) on anything bigger then dual
1024x768. But I had my 1024x768 plus 1600x1200 monitor working fine out
the VGA port of my T42 without desktop effects. I've attached the post
below that works. Substitute DVI-0 for VGA-0 if you're using the VGA port.
Unfortunately the desktop effects problem is due to a limitation with
the card.. Compiz needs the entire desktop (both screens together) to be
a single texture, and the card can only handle a maximum texture size of
2048x2048.
HERE IS THE POST:
i have a T42p and an external display connected via DVI on the
Thinkpad's docking station. When X starts, both displays show the same
content (mirrored display). So i first have to switch off one of them
and then switch on again for real dual head display:
xrandr --output DVI-0 --off
xrandr --output DVI-0 --mode 1600x1200 --left-of LVDS
I also have to add "Virtual 3200 1200" in SubSection "Display" of
Section "Screen" in xorg.conf to get an 1600x1200+1600x1200 resolution.
Video card driver is "radeon"
Jeremey Wise wrote:
I know this is a bit late on the response but ... work :P
Dual head features of the IBM Thinkpad series T41, T42, and T43 models
do NOT work and likely never will at this rate.
I posted a kernel bug back almost two years ago and it is still ongoing.
I am moving to a T6x model soon so I PRAY that this is resolved and will
post once I find out more.
https://bugzilla.redhat.com/show_bug.cgi?id=239332
Jeremey Wise
Senior Consultant
Arrow Enterprise Computing Solutions
RHCE,MCSE,CNE,PSE,TSM
-----Original Message-----
From: fedora-laptop-list-bounces@xxxxxxxxxx
[mailto:fedora-laptop-list-bounces@xxxxxxxxxx] On Behalf Of gene
Sent: Monday, May 19, 2008 7:00 PM
To: fedora-laptop-list@xxxxxxxxxx
Subject: Anyone else have a T42 /w Fedora?
Hi there.. I'm posting because Fedora is not working properly on my T42.
I
can't get the dual-head feature to work. I was wondering if anyone else
out there has a T42 with Fedora? Someone suggested trying to use
'xrandr'
to get dual head to work but all that did for me was hang Gnome.
I'm hoping I can get this to work because I so much prefer Fedora for
development but running single-head makes it undoable.
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