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Thread: Please help: Booting with a CRT: out of frequency problem

  1. #1
    Junior Member
    Join Date
    Sep 2009
    Location
    Spain
    Posts
    1

    Please help: Booting with a CRT: out of frequency problem

    Hello!

    Well, I just downloaded the last cd version of Knoppix and tried it on a pentium IV 2,6 GHz with 512 Mb RAM and an ASUS motherboard which is using a LG Flatron F700B 19" CRT monitor. A fairly normal circa 5-6 year old setup. The thing is that while still booting the screen goes "off" with an "out of frequency" message.

    What can I do? Is there any booting option I could try or is it impossible for me to use Knoppix on that computer?

    Thanks in advance for your help!

    Cheers

  2. #2
    Senior Member registered user
    Join Date
    Mar 2004
    Posts
    1,516
    http://www.knoppix.net/wiki/Cheat_Codes
    probably want to try something like this

    knoppix xvrefresh=60
    or
    knoppix vsync=60

    this wil force Use of 60 Hz vertical refresh rate for X, possibly other values than 60 should be used, somewhere in range of 35-80

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