Richard Tindall wrote:
Thanks for this effort Steve.
Steve Holdoway wrote:
After last weeks problems with my Tosh and your projector, I've been
working on a proper solution that gets your projector working.
The tosh uses an nVidia 460 go chip, which allows the setup of both
the lappie screen and the crt output to be controlled by X. I've got
this set up so that I can display on an external crt at 1280x1024,
with the lappie screen displaying at 1400x1050. This is good - also
the external lower resolution is the master, which is very good!
Indeed it does sound very good. 1024x768 is the native resolution for
the projector though. Exceeding it may have given us the blank screen
for X, even though the boot text was readable at "VGA 480[x640]". It
is fully auto-sensed from the output port, with little device control.
When XGA signal is detected, everything is sweet/est. I don't recall
it ever settling on SVGA 800x600, which would explain the frequent
defaulting to the lower res. ..Checking the manual again, there is an
Aspect setting that could be adjusted, but I doubt that will change
much. So I can see your point about refining the config file.
For 1280x1024 (SXGA), scanning frequencies are: H 63.981kHz & V 60.020Hz.
There is also dot clock frequency of 108MHz, explained here:
http://en.tldp.org/HOWTO/XFree86-Video-Timings-HOWTO/basic.html
If you can post me the definition for your projector, then with any
luck I can post a working XF86Config-4/xorg.conf for all you nVidia
users out there.
http://panasonic.com.au/products/details.cfm?productID=1211
So far, the only downside I've got it that it doesn't support hot
plugging, and you have to do a hard reset if the screen screws up -
but hey! I think we've cracked it.
That sounds right. Startup with the projector running gives the
fullest test result. And hey! I'd be amazed if you did!
My trial & error method of distro selection for a working default
setup has thus far concluded: Ubuntu5.04(Xorg) for Gnome; or use KDE.
1024x768, as the native res, should alsways look the best, and is my
laptop native res too. Ubuntu now sets them up correctly, out of the
box, with Xorg. So I'm content thus.
I'm happy to bring the projector over for tests, when anyone requests
them.
I think this'll be a pretty generic solution too, as the config file
started out from my desktop, which is a GForce FX 5200.
Cheers,
Steve
Thanks,
Rik
excerpt from the XF86Config-4 / xorg.conf. As yet untested.
Steve
Section "Monitor"
Identifier "Projector"
VendorName "Panasonic"
ModelName "PT-AE500E"
HorizSync 30 - 70
VertRefresh 50 - 87
Option "dpms"
EndSection
