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- Path: sparky!uunet!think.com!mintaka.lcs.mit.edu!ai-lab!life.ai.mit.edu!bson
- From: bson@gnu.ai.mit.edu (Jan Brittenson)
- Newsgroups: comp.unix.pc-clone.32bit
- Subject: Need contributions for ModeDB-generating toolkit
- Date: 22 Dec 92 16:58:52
- Organization: nil
- Lines: 87
- Distribution: world
- Message-ID: <BSON.92Dec22165852@nutrimat.gnu.ai.mit.edu>
- NNTP-Posting-Host: nutrimat.gnu.ai.mit.edu
-
- I have a toolkit for generating Xconfig ModeDB entries ready for
- distribution. It is based on a database of monitor and graphics
- adapter specs. In its simplest use, you run a program with two
- arguments: monitor and adapter, and it prints a list of ModeDB
- entries. I have included a sample run at the end of this message.
-
- David Wexelblat's ModeDB database on export.lcs.mit.edu provided
- info on a number of adapters, but I need timing data for monitors.
- Currently I have timing for exactly one, which isn't much of a
- database. The timing components needed are:
-
- The Vsync frequencies supported (or range)
- Whether the Vsync pulse is positive or negative
-
- A list of Hsync (line clock) frequencies, and for each one:
-
- - The time between the end of the visual output and
- the Hsync pulse
- - The duration of the Hsync pulse
- - The time between the end of the Hsync pulse and
- the start of the next line
- - Whether the pulse is positive or negative
- - Same as the above four for the Vsync timing for
- this particular Hsync frequency
-
-
- All this can usually be found on the "technical data" page of the
- instruction booklet. Please, please, e-mail me the specs of your
- monitor!
-
- The base of the toolkit is a rather detailed tutorial that covers
- concepts like aspect ratios, centering the picture, and general
- understanding of the video signal and the ModeDB entries. Plenty of
- examples. It's written in texinfo, and will be distributed in both
- .dvi (for paper copy) and .info (info tree) form.
-
- Binaries will be included for SVR4.
-
- This is free software, of course.
-
- -- Jan Brittenson
- bson@gnu.ai.mit.edu
-
-
- $ mkdb samsung-csa7571 ga200 0.94 1.56 1024
- # ModeDB database for Samsung Syncmaster 4 (CSA7571) driven
- # by GA200 LocalBus SuperVGA adapter.
- # Generated from mkdb database Sun Dec 20 09:10:54 EST 1992
- #
- # Refer to the Tutorial file for further info
- # on how to customize your setup.
- #
- # Visual X Total X Start Total Y
- # dot | Start End | Visual Y | End | Flags
-
- # Refresh rate 86 Hz
- 45 655 686 765 903 519 543 548 579
-
- # Refresh rate 82 Hz
- 45 655 686 765 903 547 571 576 607
- 57 830 869 969 1144 547 571 576 607
-
- # Refresh rate 76 Hz
- 45 655 686 765 903 595 619 624 655
- 57 830 869 969 1144 595 619 624 655
-
- # Refresh rate 72 Hz
- 32 729 735 860 901 468 469 472 493 positive positive
- 45 655 686 765 903 632 656 661 692
- 57 830 869 969 1144 632 656 661 692
- 64 933 977 1090 1285 631 655 660 691
-
- # Refresh rate 70 Hz
- 32 729 735 860 901 482 483 486 507 positive positive
- 45 655 686 765 903 651 675 680 711
- 57 830 869 969 1144 651 675 680 711
- 64 933 977 1090 1285 651 675 680 711
-
- # Refresh rate 64 Hz
- 32 729 735 860 901 529 530 533 554 positive positive
- 57 830 869 969 1144 718 742 747 778
- 64 933 977 1090 1285 718 742 747 778
- 76 1108 1160 1294 1526 718 742 747 778
-
- --
- -- Jan Brittenson
- bson@gnu.ai.mit.edu
-