[ltp] 770Z and External Video Projectors
Wed, 11 Oct 2000 16:40:48 -0700
(re-sending because it didn't seem to work before)
I have a ThinkPad 770Z (9549-8AU, 13" 1280x1024 LCD) and an urgent need
to get it to talk to an external video projector.
Currently I'm running Red Hat 6.2 + GNOME (really Immunix OS 6.2, but
that's effectively Red Hat) and it works fine on the internal LCD.
Video has two problems:
* When ever it suspends, the screen locks up upon resume. The kernel
is still ok (e.g. network access still works, and even ALT-CTRL-F#
gets you a text mode screen) but the X session is shot to hell. The
screen fills with odd stripes that gradually fade, etc.
* When I try to switch between internal and external video, it locks
hard. The kernel is NOT ok; the machine is really locked up. This
goes both wasy:
o boot with no external monitor, X comes up on the LCD, plug in
external monitor and press FN-F7, and it locks.
o boot with an external monitor plugged in, X comes up on the
tube, press FN-F7, and it locks.
I suspect that these problems are related, in that they both seem to act
like some kind of bad (re)initialization of the video chips.
The specific X version is XFree86-3.3.6-20_StackGuard (which should be
identical in functionality to XFree86-3.3.6-20).
Anyone encounter these kinds of problems? Anyone know how to get a
Thinkpad 770Z to talk nicely to external video?
Crispin Cowan, Ph.D.
Chief Research Scientist, WireX Communications, Inc. http://wirex.com
Free Hardened Linux Distribution: http://immunix.org
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