[ltp] T30:Projector resolution hassles
Atul Chitnis
linux-thinkpad@linux-thinkpad.org
Fri, 23 Apr 2004 20:46:34 +0530 (IST)
On Fri, 23 Apr 2004, Aaron Mulder wrote:
> If you're really getting different resolutions with panning, try
> connecting the projector and then restarting X (from runlevel 3 if
> necessary). I think the card/driver doesn't detect the capabilities of
> the external display except at X startup time, so it defaults to 640x480
> only or something. If you restart X with the projector connected, it
> should be detected OK.
Did that, no joy. Tried cold boots, X restart, level 5->3->5, level3 +
startx, no go.
In fact, I suspect that it is the *detection* process that's goofing up
here. Either X is not reading the display response correctly, or the
projectors aren't giving out correct information. I have noticed that
*some* projectors work just fine (e.g. recently I used a BenQ projector
that worked like a charm), but others cause this problem to appear (last I
tried was one of those ASK projectors).
Is there any way to display what X thinks it has detected? and any way to
override this?
Atul
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Atul Chitnis | achitnis@exocore.com
Exocore Consulting | http://www.exocore.com
Bangalore, India | +91 (80) 2344-0397
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