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- From: rrusk@ssd.csd.harris.com (Bob Rusk)
- Newsgroups: comp.os.linux
- Subject: Interlacing X11 vs the mouse
- Message-ID: <RRUSK.93Jan2215226@gcx1.ssd.csd.harris.com>
- Date: 3 Jan 93 02:52:26 GMT
- Sender: news@grouper.mkt.csd.harris.com (Network News)
- Reply-To: rrusk@ssd.csd.harris.com
- Organization: Harris Computer Systems Division
- Lines: 93
-
- Could somebody clue me in on how to get the mouse to behave under X11
- when interlaced? I've got a couple of really nice, stable, interlaced
- video modes that I would dearly love to use, but whenever I try to move
- the mouse cursor below mid-screen, the screen scrolls to meet the cursor
- while the cursor stands still. It looks like what I would imagine to be
- the off-screen portion of the virtual-screen feature of X386. Any help
- or ideas will be much apreciated.
-
- My computer is an old Gateway 2000 386/20 with 8MB RAM, a Quantum IDE
- hard drive, a 387, and an ATI VGA1024 video board (OEM VGAWonder without
- the mouse, 512K RAM on board). My monitor is an old Thomson UltraScan
- which is rated at 35KHz horizontal and 75 Hz vertical. If I push it much
- beyond its rated frequencies, I end up with a lot more flicker than I do
- with an interlaced display.
-
- Below is a condensed version of my Xconfig (unused modes and comments
- from top removed). I've tried setting Displaysize to '800 650', to no
- avail:
-
- FontPath "/usr/lib/X11/fonts/misc/,/usr/lib/X11/fonts/75dpi/"
-
- Keyboard
- AutoRepeat 500 5
- # Xleds 1 2 3
- ServerNumLock
- # DontZap
-
- Logitech "/dev/ttys0"
- BaudRate 1200
- # SampleRate 150
-
- #
- # The graphics drivers
- #
- vga256
- Virtual 800 650
- ViewPort 0 0
-
- Modes "b11" "b10" "b8" "640x480t2"
-
- Clocks 25 28 36 39 27 30 33 20 24 50 57 72 45 60 65 40 47
-
- #Staticgray
- #Grayscale
- #Staticcolor
- #Pseudocolor
- #Truecolor
- #Directcolor
- #Chipset "et4000"
- #Chipset "et3000"
- #Chipset "gvga"
- #Chipset "pvga1"
- Chipset "ati"
- #Displaysize 1024 768
- #Screenno 0
- #Vendor "legend"
- #Videoram 1024
- Videoram 512
- viewport 0 0
-
- ModeDB
- # clock horzontal timing vertical timing
- # Too narrow
- "b1" 36 800 824 968 1016 300 301 312 315 Interlace
- # Better
- "b2" 36 800 824 968 1000 300 301 312 315 Interlace
- "b3" 36 800 824 960 984 300 301 312 315 Interlace
- # Distorted at top
- "b4" 36 800 824 960 984 300 301 308 311 Interlace
- # Good 800x650, slightly distorted at top. Doesn't fill screen.
- "b5" 36 800 824 960 984 325 327 338 341 Interlace
- # No flicker, slight distortion at top, to short vertically, just right horiz.
- "b6" 39 800 824 960 984 325 327 338 341 Interlace
- # Slight flicker, not tall enough, quite usable.
- "b7" 36 800 824 960 984 325 329 338 345 Interlace
- # These next two are the best 800x650's.
- # b8 is wide enough but much too small horizontaoticeable flicker.
- "b8" 39 800 824 960 984 325 329 338 345 Interlace
- # b9 is not quite wide enoough (though adequate) and is less short but flickers.
- "b9" 36 800 824 960 984 325 329 338 345 Interlace
- # slight flicker again, narrower, taller, still too small
- "b10" 39 800 824 968 1016 325 329 338 345 Interlace
- # lower, wider than b10
- "b11" 39 800 824 968 992 325 329 338 345 Interlace
- "640x480t2" 28 640 680 784 800 480 490 492 525
-
-
- Thanks!
-
- --
- Bob Rusk
- rrusk@ssd.csd.harris.com
- My thoughts, probably not Harris'.
-