[ltp] Projected external display truncated.

[Alex Deucher]

On Tue, 11 Jan 2005 16:35:27 +0100, Bob Alexander <bob@ngi.it> wrote:
> Dear friends,
> I hope this is not too much a FAQ but despite some searching could not
> find solutions.
> 
> Problem is that whatever resolution set in GNOME for the LCD display,
> the image sent to the projector appears to be cut, missinh 1/5th or so
> if the left region and the top GNOME panel.
> 
> For the rest the projected display would be very very good.
> 
> My machine is a T40 (2373-92x) with an ATI Radeon 9000 32MB graphic
> chip. Running Debian sid with a 2.6.10 kernel, GNOME, ibm-acpi
> extensions and have set the proper scripts to respond to Fn+F7 events
> using radeontool to enable or disable the dac which I infer is the
> external display driver.
> 
> I have set the internal display to match the 1280x1024 capability of the
> projector and also tried some radeontool stretch commands but the
> invisible are persists.
> 
> Any ideas ?

It my experience it's usually the projector.  Many projectors have
weird compression and overscan options that are often hard to make
work properly without a lot of fiddling with the projector.

Alex

> 
> TIA,
> Bob