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- Path: sparky!uunet!cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac!unixhub!lll-winken!fnnews!fncrd6.fnal.gov!rohrer
- From: rohrer@fncrd6.fnal.gov (Keith Rohrer)
- Newsgroups: comp.os.linux
- Subject: Re: X weirdness.
- Summary: silly VGA oscillators
- Keywords: Confusion.
- Message-ID: <2135@fnnews.fnal.gov>
- Date: 28 Jul 92 14:09:41 GMT
- References: <ins295b.712319744@aurora.cc.monash.edu.au>
- Sender: news@fnnews.fnal.gov
- Followup-To: comp.os.linux
- Organization: Fermilab
- Lines: 42
- Nntp-Posting-Host: fncrd6.fnal.gov
-
- In article <ins295b.712319744@aurora.cc.monash.edu.au> ins295b@aurora.cc.monash.edu.au (Andrew Humphrey) writes:
- >Hi,
- >#include "pat.on.back.for.linus"
- > I've been tinkering with getting X11 to work with my setup
- > (50 MHz 486 with an Tseng Labs ET4000 card and a tatung multi scanning
- >monitor) and for ages was unable to get a stable picture in any of the
- >modes that the various resources had told me should work. Then
- >completely by accident I tried to start X11 after I had selected one of
- >the SVGA text modes at boot time (100x40) and It worked perfectly. Can
- >anyone out there give me a vague idea of why this is so. If more
- >details are required mail me and I'll supply what's needed.
-
- I have a similar sort of thing going on with my Swan Palette Plus
- (ET4000/HiColor) board. If you use the trick about commenting out
- all "clocks" lines in your Xconfig and then startx'ing with stderr
- redirected to a file, then sync and reboot and read the file to see
- what your clocks are, you not only (1) get different frequencies on
- my machine depending on what svga text mode you are/aren't in, you (2)
- get different frequencies depending on whether you've already run X
- (at least like that) or not!! What's worse is, X asks for an oscillator
- speed by number, not by speed, so if your clocks line has 25 in the first
- spot, and the real speed is 30 MHz, it will send a signal pattern calibrated
- for a 25 MHz clock using the 30 MHz oscillator. THIS IS DRIVING ME
- UP A WALL.
-
- I have a feeling that, since I've got a variable oscillator (VCO?) on my
- card, I'm in the same boat as the people with the new Speedstar 24s...
- any progress on that situation yet?
-
- C'MON PEOPLE, I CAN DO 1024x768 NO PROBLEM IN DOS MODE!!!
- (that oughta get 'em...)
-
- >Andrew Humphrey
- >ins295b@aurora.cc.monash.edu.au
- >ins295b@lindblat.cc.monash.edu.au
- >humpy@yoyo.cc.monash.edu.au
- >
- >"Just because I'm paranoid, it doesn't mean the whole world isn't out to
- >get me".
-
- Keith
- (rohrer@fncrd0.fnal.gov)
-