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Blank screen after starting X11
I am struggling to run knoppix on a machine that is my main linux box.
Its starts fine, goes as far as entering run level 5, then I see starting X11, then the screen goes blank and after a while the monitor goes on standby.
The CD and hard drive keep working so I guess its a video card / monitor issue.
The videocard is an onboard ATI 3D rage pro and the monitor a Mag 1595
This occurs with both knoppix 3.3 and knoppix 3.4-ct
I have installed RH 9 and SUSE 9 Pro on this machine before without a problem
I've looked in the FAQs and tried running as VGA=VESA and the other one recommended ( this is from memory so I could have got it the wrong way around)
Can any one point me in the right direction?
thanks a mil
:P
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Try typing inknoppix xvrefresh=60 xmodule=ati screen=1024x768 at the boot screen then enter. You probably only need the xvrefresh=60 cheat code in the line and you can use a lower screen value if you want.
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Stephen you are a star
the xvrefresh=60 did the trick
what was going wrong with the normal boot? and how did you pick that up?
thanks a mil
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![Quote](images/misc/quote_icon.png)
Originally Posted by
DinB
Stephen you are a star
the xvrefresh=60 did the trick
what was going wrong with the normal boot? and how did you pick that up?
thanks a mil
![Very Happy](images/smilies/icon_biggrin.gif)
It is older hardware that monitor will not do the 72 hz refresh rate (IIRC) at 1024x768 that knoppix tries to use when it starts X. I have an old Acer here that was made around the same time as yours the best I can get it to use is 67 hz.
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ok that explains it, intersting it was not an issue with RH or SUSE, but now I know
thanks again stephen
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![Quote](images/misc/quote_icon.png)
Originally Posted by
DinB
ok that explains it, intersting it was not an issue with RH or SUSE, but now I know
thanks again stephen
Never happened to me with Mandrake either, I have the same ATI card in that machine only Knoppix has a problem with the monitor if I put a more recent model of monitor there it works fine. Strangely enough Knoppix will do 1152x768/60hz on that monitor but no other distro will so go figure eh!
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