Re: [9fans] 00E & projector

["Ronald G. Minnich" <rminnich@lanl.gov>]

On Sat, 1 Feb 2003, Russ Cox wrote:

> Are you running your screen at a higher resolution
> than the projector supports?  That's what it sounds
> like.  It's also possible we screwed up the CRT
> code -- it doesn't get exercised much -- but usually
> if you Fn-F7 to get it working before aux/vga,
> it keeps working.

Another common problem when you go to graphics mode on older thinkpads --
there is a "feature" that doesn't work with all projectors in which the
thinkpad hardware tries to autodetect external vga, and won't drive it
unless it detects it. Well, guess what, it didn't always work, as I found
at one conference where I went through three projectors and had to give up
and "talk to my slides" while the audience watched a blank screen for 45
minutes. I doubt more than 75% of them fell asleep, but I'm an optimist --
oh, no, wait, I'm not.

There was a linux utility to fix this on the 570, and I wonder if the same
problem exists on the 600. The linux utility just jammed some random magic
hardware bit and all was well (disabled the hardware mis-feature).
So it can look like a resolution problem but actually be something else.
Best bet is try 640x480 first, and if that doesn't fix it, then the
problem is something else.

ron