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XFree86 screen configuration
My first post here.
After my HDD install everything worked fine but the resolution set by Knoppix was far too high for me to see anything properly on my 14" CTX monitor.
I ran the kXConfig in my KDE desktop ("Advanced XFree86 Configuration") It displayed the Monitor settings, keyboard settings and pointer settings correctly to what Knoppix had correctly detected and the Video card was claimed to be of type "Generic Versa". I tried to change the screen resolution to 800x600, saved and restarted X. However, the resolution I ended up with was very low, I think 640x480 and the clock wouldn't fit on the taskbar! After this point it seemed to be stuck on this resolution and whatever resolutions or colour depths I tried it always went to 640x480 whenever I restarted X. I think this might be to do with the generic graphics card driver.
I got the graphics card second hand but it says "S3 Trio64 V2/DX" on one of the chips so I tried the "S3 Trio 3D/2X" and "S3 Trio3D" and "Generic s3virge" drivers, none of which worked and X refused to start.
I booted using the CD-ROM again and I overwrote the XF86Config and XF86Config-4 files on the hard disk with the ones that Knoppix generated so I was back where I started as I'd rather have the very high resolution that the very low one that the manual config keeps forcing.
Is the problem simply that my graphics card is not supported? And if so what setup is Knoppix using to achieve a very high resolution (about 1024x76 and can I use the same settings but modify them slightly to 800x600?
Here are dumps of the appropriate parts of the config files generated by Knoppix...
XF86Config==================
Code:
# Auto-generated by mkxf86config
Section "Monitor"
Identifier "Monitor0"
VendorName "CTX"
ModelName "CTX1451"
# HorizSync 28.0 - 78.0 # Warning: This may fry very old Monitors
HorizSync 28.0 - 96.0 # Warning: This may fry old Monitors
VertRefresh 50.0 - 76.0 # Very conservative. May flicker.
# These are the DDC-probed settings reported by your monitor.
# 1280x1024, 75.0Hz; hfreq=79.98, vfreq=75.03
ModeLine "1280x1024" 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
# 1024x768, 60.0Hz; hfreq=48.36, vfreq=60.00
ModeLine "1024x768" 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
# 640x480, 75.0Hz; hfreq=37.50, vfreq=75.00
ModeLine "640x480" 31.50 640 656 720 840 480 481 484 500 -hsync -vsync
EndSection
Section "Device"
Identifier "My Video Card"
VendorName "Unknown"
BoardName "Unknown"
# TextClockFreq 22.175
EndSection
Section "Device"
Identifier "fbdev"
VendorName "Unknown"
BoardName "Unknown"
EndSection
# Standard Server
Section "Screen"
Driver "svga"
Device "My Video Card"
Monitor "Monitor0"
Subsection "Display"
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
# Accel. Server(s)
Section "Screen"
Driver "accel"
Device "My Video Card"
Monitor "Monitor0"
Subsection "Display"
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
# Fallback
Section "Screen"
Driver "vga16"
Device "My Video Card"
Monitor "Monitor0"
Subsection "Display"
Modes "1024x768" "800x600" "640x480"
EndSubsection
EndSection
Section "Screen"
Driver "fbdev"
Device "fbdev"
Monitor "Monitor0"
SubSection "Display"
Depth 32
Modes "default"
EndSubSection
SubSection "Display"
Depth 24
Modes "default"
EndSubSection
SubSection "Display"
Depth 16
Modes "default"
EndSubSection
SubSection "Display"
Depth 15
Modes "default"
EndSubSection
SubSection "Display"
Depth 8
Modes "default"
EndSubSection
EndSection
XF86Config-4================
Code:
# Auto-generated by KNOPPIX mkxf86config
Section "Monitor"
Identifier "Monitor0"
Option "DPMS" "true"
VendorName "CTX"
ModelName "CTX1451"
# HorizSync 28.0 - 78.0 # Warning: This may fry very old Monitors
HorizSync 28.0 - 96.0 # Warning: This may fry old Monitors
VertRefresh 50.0 - 76.0 # Very conservative. May flicker.
# These are the DDC-probed settings reported by your monitor.
# 1280x1024, 75.0Hz; hfreq=79.98, vfreq=75.03
ModeLine "1280x1024" 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
# 1024x768, 60.0Hz; hfreq=48.36, vfreq=60.00
ModeLine "1024x768" 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
# 640x480, 75.0Hz; hfreq=37.50, vfreq=75.00
ModeLine "640x480" 31.50 640 656 720 840 480 481 484 500 -hsync -vsync
EndSection
Section "Device"
### Available Driver options are:-
# sw_cursor is needed for some ati and radeon cards
#Option "sw_cursor"
#Option "hw_cursor"
#Option "NoAccel"
#Option "ShowCache"
#Option "ShadowFB"
#Option "UseFBDev"
#Option "Rotate"
Identifier "Card0"
# The following line is auto-generated by KNOPPIX mkxf86config
Driver "vesa"
VendorName "All"
BoardName "All"
# BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultColorDepth 16
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 32
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "DRI"
Mode 0666
EndSection
Sorry about the length of this post but I'm trying to give you as much information as I can.
Thanks for your time, and please be gentle with me, I'm a newbie
tola ^/.
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Senior Member
registered user
Is the problem simply that my graphics card is not supported?
Not with X 4.x, but it is supported by using X 3.3.6, so try this:
Boot your cd with the following cheat codes:
knoppix vga=normal screen=800x600 xserver=XF86_SVGA
see how your video works, if it works OK, then save the XF86Config-4 file to your hd in /etc/X11 (you should back up your existing file just in case), then reboot to you hd install.
HTH
rock
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Originally Posted by
RockMumbles
Not with X 4.x, but it is supported by using X 3.3.6, so try this:
Boot your cd with the following cheat codes:
knoppix vga=normal screen=800x600 xserver=XF86_SVGA
see how your video works, if it works OK, then save the XF86Config-4 file to your hd in /etc/X11 (you should back up your existing file just in case), then reboot to you hd install.
Thanks for the help!
Typing
Code:
knoppix vga=normal screen=800x600 xserver=XF86_SVGA
works but everything is huge and colours are grainy, infact the icons and panel at the bottom are the same size as if I type
Code:
knoppix vga=normal screen=640x480 xserver=XF86_SVGA
and I don't have a clue why!
If I type
Code:
knoppix vga=normal screen=1024x768 xserver=XF86_SVGA
the resolution is so high that I can't read a thing! I seem stuck between two extremes and short of getting a bigger monitor there seems little I can do!
One other odd thing is that when Knoppix boots off the CD-ROM it detects my graphics card precisely right, S3 Trio64 V2/DX but the graphics card is not mentioned in the configuration tool in XWindows along with the other S3 Cards.
Is there anything else that can be done?
tola ^/.
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Senior Member
registered user
Try adding this to your boot arguments:
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Senior Member
registered user
Have you tried using the original configuration detected by knoppix(the first XF86Config-4) but change the lines :
Modes "1024x768" "800x600" "640x480"
to Modes "800x600" "640x480"
Seems that the driver does support your card at the highest resolution so I can't see why it cannot be done for 800x600, may be all you need is another ModeLine.
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