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Old 08-23-2005, 09:38 AM   #1
LQ Newbie
Registered: Jul 2003
Location: India
Distribution: Red Hat Linux, SUN Solaris
Posts: 22

Rep: Reputation: 15
X crashes - Wild Screen

Hi all Fedora Lovers,
Despite many tries, I managed to install FC4. I often get screen crash/ refresh kind of problem i.e I couldn't continue installation as I can't see anything readable more coz of some multicolored vertical line used to come in between the installation when it asks for new username, welcome window, Disclaimer etc., Somehow I managed to enter all those informations and continue logging in. But the monitor/screen resolution was too annoying that I could not see any text within the terminal or message box unless I moved my mouse cursor to the place I need to read that to not clearly. I donno wot's wrong with my configuration. I even tried modifying the screen refresh rate using the utility available in 'preference->screen resolution', I set it as 800x600 tried 55Hz to 80 Hz. But it's worthless, the problem still exists. Just before fell in love with FC, this resolution/refresh rate problem used to annoy me a lot which even refrain me using lovable FC4.

Hope this problem is common for FC. Anybody who has experienced this problem and resolved it?

How should I resolve this problem? Help me solving this. Please...

thanks in advance,
Old 08-23-2005, 11:46 AM   #2
Registered: Dec 2004
Location: Washington State, USA
Distribution: Debian Sid
Posts: 128

Rep: Reputation: 16
What video card do you have? It's possible fedora just isn't using the best driver for it. For example, if you have an nvidia card, try installing the official nvidia drivers "nvidia", or at least make sure it's using the "nv" driver (the open-source nvidia driver that comes with X), NOT "vesa" or anything else.

Also, how old are your monitor and video card? Can you run windows well at the same resolution (on the same video card and monitor)?

If you're pretty sure it's a refresh-related problem, fedora might just not have detected your monitor correctly. If you can look up the hsync and vsync ranges for your monitor, I'm not familiar with fedora, but there should be a place to tell fedora what the hsync and vsync ranges are. If you don't know where it is, try and find fedora's config file for xorg.
Old 08-24-2005, 12:16 AM   #3
LQ Newbie
Registered: Jul 2003
Location: India
Distribution: Red Hat Linux, SUN Solaris
Posts: 22

Original Poster
Rep: Reputation: 15
Thumbs up

Hey Corfe,
Thanks for your suggestion. I resolved my problem. After long hours investigating, I tweaked
the file /etc/X11/xorg.conf where I modified DefaultDepth to 16 which was
earlier [b]24[\b] that my monitor couldn't support. But FC recognizes my monitor model, vendor,
resolution(max), refresh rate, etc., but it went wrong on the value of "DefaultDepth". I suppose
that value is for number of colors supported like 'thousands of colors' or 'millions of colors'. Am
I right?

I'm happy and proud that I resolved my problem.

Thanks for your support!



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