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Blank screen on bootup w/ 3.3
I get the "you passed an undefined mode number" error. I've tried fb800x600, knoppix nosmp vga=normal screen=800x600 xvrefresh=60 and I've tried knoppix-txt, and while those get past the error, after "uncompressing kernel..." my screen goes blank, and the cdrom keeps being hit.
My machine is a Micron Millennia Transport laptop.
edit: video is a Cirrus Logic GD7548
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Senior Member
registered user
You can try booting with the expert cheat code and enter the specs for your video card and display manually. Also you can boot knoppix 2 and although you won't have Xwindows you could at least see if the cd will boot on your machine.
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at startup:
knoppix xmodule=fbdev
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![Quote](images/misc/quote_icon.png)
Originally Posted by
jtevermore
at startup:
knoppix xmodule=fbdev
Tried this, same error. I briefly see some multicolored text, and then the screen goes blank.
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OK, when I use the "expert" code, it still says undefined mode number, but I skip it and get to this:
Video is GD754x (laptop) GD 7548, using XF86_SVGA(vesa) Server
Monitor is Generic Monitor, H:28.0-96.0kHz, V:50.0-62.0Hz
Using Modes "1024x768" "800x600" "640x480"
after I say yes to run XF86 config, I set it to supervga 800x600 for the monitor, the lowest refresh rates, choose my GD7548 for the card, choose vesa, and then I get strange lines and blurry shapes on screen.
same thing happens if I choose "no" to reconfiguring X11.
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Senior Member
registered user
I could not get a working X configuration for my laptop in 3.3, so I went back to Knoppix 3.2, since it works just fine.
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I had the same problem with 3.2 before this
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I have a Compaq Armada 4120T with the same Cirrus Logic card
and seeing the same problems with 3.3....fuzzy and illegible display. Tried almost every cheat code I could find.
edraven, did you ever come to a solution?
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Senior Member
registered user
I think you might be on the right track just wrong screen resolution.
try
Code:
knoppix xmodule=fbdev fb=1024x768
try changing the resolution to a lower if necessary. This is what worked on my laptop.
johnb
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