Hi. I'm running Debian unstable on a Lenovo T60. I'd like to
run this dual-head with an external monitor, but have been
having some problems that I tried to solve but eventually gave
up on because I'm so lousy with X configuration. However, I
recently discovered that things work fine out-of-the-box with
Ubuntu 9.10, running on the same computer (via a live USB
stick). So I'm wondering if there's some way to figure out why
there's a difference, and whether I can get the Debian system
working in the same way.

The T60 has a Radeon X1300 card; the built-in monitor runs at
1400 x 1050. I'm trying to attach a 1280 x 1024 external
monitor through the VGA port. I'm running Xorg 1.7.5, and I do
not have an xorg.conf at all, I'm letting Xorg generate the
configuration. When I plug in the external monitor, and run
Display Preferences to try to set up the two displays, I get a
popup message reading "The selected configuration for displays
could not be applied[:] required virtual size does not fit
available size: requested=(2680,1050), minimum=(320, 200),
maximum=(1400, 1400)".

I've Googled this and found a few bug reports that don't,
however, clarify what's going on.

But the notable thing for me is that running Ubuntu 9.10,
which is running Xorg 1.6.4, this Just Works, with everything
else identical--same hardware, same lack of xorg.conf file,
etc.

I'd be grateful for any suggestions. I'd vastly prefer _not_
to have to start messing around with the configuration file,
because apart from this one issue, I don't seem to need one,
and Ubuntu doesn't seem to need it either.

Thanks.

Jesse Sheidlower


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