Changing the Monitor refresh rate ?
OS...RH9.0
Monitor...Optiquest Q51-3 H refresh rate 30-56 kHz V refresh rate 50-120 Hz dpi setting 73 x 73 Video Card NVIDIA GeForce 2 MX Generic My purpose for this has to do with switching from computer-to-computer via a KVM switch. I have four systems at my desk. Three are windows systems all setup with 60HZ refresh rates From these systems, it is easy to change the refresh rates I am confused about the RH box. Do I manually change the Vertical range from 50-120 >> 60, or is there more to it. Thanks Don |
you can look at the /etc/X11/XF86-config file (root permission reqd)
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In a console (su),try running either xf86config for XFree 3,or xf86cfg for XFree 4.You can then alter your vertical and horizontal sync. rates.
Lachlan |
Run
redhat-config-xfree86 or edit /etc/X11/XF86Config there will be a Monitor seciton where you can change the refresh rates |
Not exactly. To my knowledge and the XF86Config file backs me up on this. The refresh rates stated in the monitor section don't dictate the refresh that your speaking of. If your running KDE and your monitor and video card are set up right you can change the refresh rates easily. (Control Center->Peripherals->Screen) If not you can edit the XF86Config file like so:
. . .. Subsection "Display" Depth 24 Modes "1280x1024/70Hz" "800x600" "1024x768" "1280x1024" "640x480" ViewPort 0 0 # initial origin if mode is smaller than desktop Virtual 0 0 EndSubsection .. . . See the /70 that should be the indicator as to how the refresh rate is set. --tarballedtux |
So you're saying their in the Monitor section for no reason whatsoever and have to be added to the Screen section? That isn't the way the config program adds it to the XF86Config file.
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I'm saying the refresh numbers listed in the Monitor section reference numbers that don't pertain the original question. There is a difference in the refresh rates in the Monitor and the Display section. Example my Monitor section says Vertical Refresh 50 - 150, but I can't set it that high. That would kill my monitor and my eyes.
--tarballedtux |
I'll try it. Learn something new every day.
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tarballedtux...
RedHat 9.0 w/ GNOME I went into etc/X11/XF86Config to the following section Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor"Monitor0" DefaultDepth 24 Subsection "Display" Depth 24 Modes "800x600" EndSubSection EndSection Modified Modes "800x600/60Hz" Reboot the machine At root ran "startx" Received an error...No server found (can't get into GUI) Backed-out the modification and startx worked fine. Also tried Modified Modes "800x600/60Hz" "600x480" This resulted in X going to 600 x 480 incidentally, under section "monitor" the information I included above is listed Quote:
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The solution for me was to edit /etc/X11/XF86Config
Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Optiquest Q51-3" DisplaySize 280 210 HorizSync 30.0 - 56.0 VertRefresh 60.0 - 60.0 Option "dpms" EndSection Section "Device" Identifier "Videocard0" Driver "nv" VendorName "Videocard vendor" BoardName "NVIDIA GeForce 2 MX (generic)" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 Modes "800x600" "640x480" EndSubSection EndSection I can't explain why, but the following did not work Quote:
Thanks |
Specific "ModeLine" statements can be added to XF86Config to control refresh rates for different resolutions. The command-line utility gtf (should be included with X) can help determine correct ModeLine statements.
Regards, nightwulf |
24jedi,
Exactly what I was referring to in post #4 |
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