Subject: tseng et4000 detection
From: sclawson@cadehp10.eng.utah.edu (Stephen. Clawson)
To: linux-activists@joker.cs.hut.fi
Date: Mon, 6 Jan 92 21:04:19 MST

     I just installed the svga detection patches to the kernel, and 
while it is *very* nice to be able to use a bigger screen, the auto
detection didn't seem to work on my system.  I'm running a 40Mhz 386 
with a Diamond Speedstar Plus HiColor, which uses the Tseng ET4000
chipset.  Has anyone else had this problem?  I had to force the system
into realizing I have a tseng card to get it to work.
 
steve

// sclawson@cadehp0.eng.utah.edu  -  University of Utah

Subject: Re:  tseng et4000 detection
Date: Tue, 7 Jan 92 08:58:23 +0100
From: d88-man@nada.kth.se
To: linux-activists@joker.cs.hut.fi, sclawson@cadehp10.eng.utah.edu

Linus has had the same prob. The strange thing is that the code to do the 
'guessing' is taken from a book/vga-doc files that says that it has been
tested to work properly ! If anybody knows how to do it please let me know.
I have read the postings about BIOS or no BIOS in SVGA-handling, and I would
just like to say (in my deffence :-) that this is just a small hack to help
people having bigger screens (remember Linux is still beta-version) and it
is not meant to be installed for good. I will work on a stand alone program
to do mode-switching from a runing shell, it's just that that is A LOT more
work. This code was finnished in a rush, mainly to let people test the 'feature'
and to test the somewhat inconsistent card-detection code (I do only have one 
card to test on :-) And for that purpose the BIOS can be used since it's just a
int-call from the setup which is running in native mode so the BIOS-call there
really do no harm, it's just a MUCH more simple way of doing it instead of
doing direct I/O to the card. And by all means nobody is forced to use the
patch :-)
/Mats Andersson (d88-man@nada.kth.se)