Garbage display once X started
I have a system based on the Intel i810 chipset, using the onboard video.
When booting the 3.9 CD, there are a couple of issues:
1. (minor) I get the message "You passed an undefined mode number."
This is not a big problem; I type 0 and things continue on.
2. (major) X fails to start. It gives me a garbage display.
(Typing ctrl-alt-F2 [or F1/etc] does work okay to get me to a
alternate virtual text console.)
I've done some searching here and found that I can get X to work by
initially giving the "3" argument to "Boot:" and then typing (once I get
the prompt):
modprobe intel_agp
startx
I've noticed that other people using Intel chipsets are experiencing
the same problem. Perhaps a bug fix is in order?
Re: Garbage display once X started
Quote:
Originally Posted by Anonymous Hamster
I have a system based on the Intel i810 chipset, using the onboard video. When booting the 3.9 CD, there are a couple of issues:
1. (minor) I get the message "You passed an undefined mode number."
This is not a big problem; I type 0 and things continue on.
Try booting with boot: knoppix vga=0 Specifying vga=0 is the same as typing in 0 later.
Quote:
Originally Posted by Anonymous Hamster
2. (major) X fails to start. It gives me a garbage display.
(Typing ctrl-alt-F2 [or F1/etc] does work okay to get me to a
alternate virtual text console.)
Try booting with boot: knoppix vga=0 3. Then when you are at the shell prompt, type:
Quote:
modprobe intel_agp
init 5
You may also want to try these other values for vga=: 769, 771, 773, 775. You may also want to try these values for xmodule=: i810, fbdev. For more cheatcodes.
Quote:
Originally Posted by Anonymous Hamster
Perhaps a bug fix is in order?
From what I understand, Klaus is aware of this issue with agp drivers not loading. IIRC, the error is in the script /etc/init.d/xsession:
less -iNX +/'should not' /etc/init.d/xsession
Let us know how things go. Since I don't have an Intel graphics card, I'm particularly curious to know if this works:
boot: knoppix vga=0 xmodule=i810
Regards,
- Robert
http://www.cwelug.org/
Re: Garbage display once X started
Quote:
Originally Posted by rwcitek
Try booting with boot: knoppix vga=0 Specifying vga=0 is the same as typing in 0 later.
That fixes the first problem, not the second.
Quote:
Originally Posted by rwcitek
Try booting with
boot: knoppix vga=0 3. Then when you are at the shell prompt, type:
Quote:
modprobe intel_agp
init 5
That works fine.
Quote:
Originally Posted by rwcitek
You may also want to try these other values for vga=: 769, 771, 773, 775. You may also want to try these values for xmodule=: i810, fbdev. For more
cheatcodes.
Quote:
Originally Posted by Anonymous Hamster
Perhaps a bug fix is in order?
From what I understand, Klaus is aware of this issue with agp drivers not loading. IIRC, the error is in the script /etc/init.d/xsession:
less -iNX +/'should not' /etc/init.d/xsession
Let us know how things go. Since I don't have an Intel graphics card, I'm particularly curious to know if this works:
boot: knoppix vga=0 xmodule=i810
No, that doesn't work. xmodule is not the problem. The problem is with the AGP driver, not the video driver.
When I try the above, I get this series of messages:
Quote:
Starting X11.....
Retrying with server XFree86(vesa) .
Retrying with server XFree86(fbdev) .
Error: No suitable X-server found for your card.
Of course, there's lots of video flashing between these messages.
Re: Garbage display once X started
Quote:
Originally Posted by Anonymous Hamster
Quote:
Originally Posted by rwcitek
Try booting with
boot: knoppix vga=0 3. Then when you are at the shell prompt, type:
Quote:
modprobe intel_agp
init 5
That works fine.
Excellent.
Quote:
Originally Posted by Anonymous Hamster
Quote:
Originally Posted by rwcitek
Since I don't have an Intel graphics card, I'm particularly curious to know if this works:
boot: knoppix vga=0 xmodule=i810
No, that doesn't work.
xmodule is not the problem. The problem is with the AGP driver, not the video driver.
True. But was worth a shot.
At this point, you know what works and have several options on how to fix it. Perhaps the simplest solution would be to uncomment the lines after the "Should not ... " in /etc/init.d/xsessions and then save your configuration to a USB stick or local harddrive either through using a persistent image (knoppix-mkimage) or saving the system configuration (saveconfig). You could also remaster the CD.
Let us know what works for you.
Regards,
- Robert
http://www.cwelug.org/
