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- Path: sparky!uunet!stanford.edu!rutgers!igor.rutgers.edu!athos.rutgers.edu!hedrick
- From: hedrick@athos.rutgers.edu (Charles Hedrick)
- Newsgroups: comp.os.linux
- Subject: Re: problems getting 800x600 out off an ET-4000
- Message-ID: <Sep.5.01.39.55.1992.9017@athos.rutgers.edu>
- Date: 5 Sep 92 05:39:56 GMT
- References: <1992Sep2.181430@cc4.kuleuven.ac.be>
- Organization: Rutgers Univ., New Brunswick, N.J.
- Lines: 35
-
- stud07@cc4.kuleuven.ac.be (Dirk Dussart) writes:
-
-
- > clocks 36
- > .
- > modeDB
- > "800x600" 36 .....
-
- You have told X that your board has one clock, at 36MHz, and to use
- that clock. You are almost certainly wrong. Every board I've seen
- has several clocks, the first of which is 25MHz. If your board is
- like every other, the net effect of this configuration is to get
- 25Mhz. Note that the actual numerical values you list for the clocks
- don't matter. X simply matches against the list so that it knows
- which clock to use. So it doesn't matter whether you call it 25 or
- 36, as long as you list it first in the clocks statement, what you're
- getting is the first clock. If you want a 36 MHz clock, you're going
- to need to know which clock is 36 MHz, and make sure you listt 36 in the
- right position. That is, if 36 MHz is the third clock, you'll need
- something like
-
- > clocks 25 28 36
- > .
- > modeDB
- > "800x600" 36 .....
-
- It could just as well be
-
- > clocks 1 2 3
- > .
- > modeDB
- > "800x600" 3 .....
-
- In either case you'll get the third clock. But using the right
- speeds is clearer for people who are reading the file.
-