(I already posted this in comp.os.linux, but got an automated
reply saying I shouldn't 've, so I hope it's now in the right
I've just installed the LGX (Yggdrasil Plug-and-Play) Summer 1994
release from CD-ROM. Almost everything has worked fine so far,
but with one major exception.
The exception is X window refresh. I'm using a Fahrenheit 1280
S3 display adapter with an NEC Multisync 4FG display, on a 386 with
8MB RAM and 8MB swap.
Xconfig specifies s3_generic (but I've tried several others as
X starts up OK, and I can start a number of clients without any
problem. However, if I move the client windows around the screen,
the exposed areas are not always repainted. As I do more of
this, individual text characters in different windows start to disappear,
then some characters change shape to become rectangular black blobs,
then some time later the X cursor changes shape, becoming a series
of parallel vertical lines about half an inch long (somewhat like the
bar codes imprinted on books etc). In the end, the screen becomes
It looks like it's a backing store/save-under problem. I've
tried starting the server with commands like:
xinit -- /var/xconfig/Xserver :0 -bs (and/or -wm)
but that doesn't seem to make any difference.
I've also tried different window managers, but no difference.
According to the README files in /usr/lib/X11/etc, this card
should work OK. I've also tried modifying DIL switches on the
card, to switch shadow ROM on/off etc, all to no avail.
(And BTW, the card works very well with DOS/Windows).
In desperation, I substituted an old SVGA card. That works
fine without any of these problems, but is desperately slow,
and I don't get the 1024x768 resolution.
So I really want to get the Fahrenheit card working.
Can you help?