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Old 03-15-2009, 03:19 PM   #1
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Registered: Mar 2009
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Monitor out of range

I just installed Linux Xubuntu 8.10 on my very old PPC mac. The installation went fine but when i rebooted my computer the monitor goes black and says out of scan range. Everything seems to go normally (it says yaboot 1.3.13 or something... loading kernel... etc) but after a couple of seconds it says that message about the frequency range) I looked at some other posts in different websites but couldnt really figure it out. Pretty sure it has something to do with my monitor (which btw is very old as well) and not my graphics card

my horizontal scan range is 30 - 96 and my vertical is 48 - 120

here is more info on my monitor

i can still boot in low graphics mode in xubuntu but i want to know if there is a way so that i can get a good resolution. i posted this in but no one replied. Please help.

PS: i am a newbie (barely know anything about the command line), so plz if you can try to give step by step instructions.

Thanks for your help
Old 03-15-2009, 03:31 PM   #2
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Registered: Nov 2006
Location: Belgium
Distribution: Ubuntu 11.04, Debian testing
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It is probably the video card that is causing the problem. If you can determine the exact type, you may find that a driver is available.

You can also edit your xorg.conf file - but if the screen really goes black, I would recommend looking for a driver first.
The "Defining monitor" section is the one you need. You can insert refresh rates under the "Section "Monitor"" heading like this:
VertRefresh 48-120
HorizSync 30-96

Last edited by jay73; 03-15-2009 at 03:34 PM.


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