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ok thats what i got now...
There is no way to run a command like redhat-config-xfree86
because as soon the screen goes blank, when i press ctrl-alt-f1 to switch i cant type nothing!!! my only chance is to reinstall again.. The video card driver is ok.. the problem is with the monitor ...every time i try a new video configuration and the configuration fails i know i must reinstall red hat..... what can i do??? please!!!!! i can see the linux desktop but in low resolution only (640x480)
I only now that my solution is run something in text mode...
because everytime i do a change in the graphic properties my screen goes blank!!(My monitor is not in the list, im uing a generic vga 800x600 when my its a high resolution monitor 1024x756,, then also im using the Vert. and Hor.. sync rates wich i have from the monitors manual..and nothing!!!) After that i have no chance to type nothing..so i must resintall.. Please help!!!!
Did the RH9 successully probe your video card? Is it a new one? The first possible reason might be that the video card not fully supported by the current kernel.
Are you using the LCD? or the ordinary SVGA? From your words I think you have an "unknown monitor" by RH9. However, try to search on the list to see whether your monitor is among them.
Do you mean you could only use 640x480? what about the refresh rate in this mode? Does it twinkle? If your video card is fully supported by the Kernel, then I believe the problem lies in your Horizantal refresh rate.
If you failed after all above, try the "Generic Monitor at 1024x768" in 640x480 mode.
I don't think it is necessary to reinstall everytime...
Also, try setting the driver portion of your video card in
/etc/X11/XF86Config to "vesa"
this is a generic video driver that should be able to handle resolutions of 800x600. If you have the machine dual booted, you can also boot into windows and open the .inf file that windows is using for the monitor. It will list the synch rates there. Simply edit the same file listed above with those synch rates. If you have any questions let me know.
Oh, I think I could only get the refresh frequency in this case. However, Linux need the "2" value. I am still wondering if the video card is fully supported, since I got the same problem at RH7.1, but it works quite all right on RH9.
Another approch is to choose the "Generic Panel at 1024x768". Sorry but no other ideas.