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12-24-2004, 07:53 PM
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#1
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Member
Registered: Sep 2003
Posts: 89
Rep:
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knoppix resolution and refresh rate problem
hello,
iv installed knoppix to my hard drive, and recently it was all working fine, until i reboot and the resolution was at 1024x768 (which it was before) but the refresh rate is 85 even though it seems more like 60.
i can't change the resolution to anything else, in the display configuration tool there is only 1 drop down option which is 1024 x 768 and refresh rate there is only one option whish is 85 (but the screen refresh rate is more like 60)
in windows its 1152x864 running at refresh rate 75 nvidia geforce fx 5200
iv tried cheat sheets
vsync=70 hsync=70 screen=1024x768 (also tried 1152x864 doesnt work) depth=24 (however the avaialble depths to me in windows are 16 or 32
now even at 1024x768 it wont go to 75 refresh (it hurts my eyes at 60)
is there any xfreeF86 tools i can use to diagnose and fix this ? or to correct it ? on linux boot up (its knoppix harddrive version) it detects NVidia GeForce FX5200 and displays 1024x768 800x600 640x480
when i booted up as
screen=800x600 it said
NVidia GeForce FX5200
800x600 640x480
is there anythign else i can try, is there anything i can do with the xfree config files in the etc/x11/ directory theres about 4/5 different files some with a -4 at the end i dont no what that means
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12-24-2004, 10:20 PM
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#2
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Member
Registered: Apr 2004
Distribution: Slackware 10, Open BSD 3.6, Mac OS 10.3.7, Splack 10 beta
Posts: 393
Rep:
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You can manually change it. Edit either you xorg.conf or xfree86.conf. Depending on which X window system knoppix uses (i don't remember). The file is very easy to read it's divided into sections. Scroll down till you see the part of vertical and horizton refresh rates. Also xorgconfig or xfree86config.
There is the section you need:
Code:
# USER MANUAL FOR THE CORRECT NUMBERS.
HorizSync 31-95
# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies
# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
VertRefresh 50-16
The section for resolutions is a bit farther down.
Last edited by zaicheke; 12-24-2004 at 10:21 PM.
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12-25-2004, 07:22 AM
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#3
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Member
Registered: Sep 2003
Posts: 89
Original Poster
Rep:
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Nope I can't see anything like that. iv checked all files
i have
xf86config
xf86config-4
xf86config-in
xf86config.in
xftconfig
is there anyway i can have linux rebuild my xf86config files, i.e. erase them then recreate them ??
and im running kde btw
edited:
icant even edit any of the above files, it wont let me safe, ive tried as root as well, just says files cannot be written to check permission etc.
Last edited by abbasakhtar; 12-25-2004 at 08:37 AM.
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12-26-2004, 09:00 PM
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#4
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Member
Registered: Apr 2004
Distribution: Slackware 10, Open BSD 3.6, Mac OS 10.3.7, Splack 10 beta
Posts: 393
Rep:
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hmm. That's strange. Your x config file should be in /etc/X11.
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12-26-2004, 09:28 PM
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#5
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Member
Registered: Sep 2003
Posts: 89
Original Poster
Rep:
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It Is
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12-28-2004, 09:28 AM
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#6
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Member
Registered: Sep 2004
Distribution: Debian, kernel 2.6.10
Posts: 50
Rep:
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you can do this changws in file /etc/X11/XF86Config-4
J.
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