4349 causes x server to crash

[jepylu]

im using gainward ti 4800se, epox 8k9a (kt400 chipset)
and redhat 9. when using nv it works fine. when i use nvidia i cant go into x windows. some garbage text fills the screen. i think the problem has something to do with agp 8x mode. i have found no errors in my logfile. when i tried it with an agp4x mobo it worked fine. is there a way to force agp 4x mode?

[scotland42]

I'm having the same problem with mine. I'm using a GeForce4 TI4600, Soyo KT400 Ultra Platinum motherboard, with an AMD XP 2600 processor, and running RedHat 9. Everytime I boot X, I get the same jumbled text. First of all, how do you boot without loading X? Second, how do you change your AGP speed? Does anybody have any clue what this problem is? The jumbled text consists of a bucnch of upside down exclamation points ( ! ) and random characters. The computer totally locks of, and I have to hard reset in order to reboot. Any help would be greatly appreciated.

Cheers

[jepylu]

You may be able to boot single-user mode directly. If your system boots, but does not allow you to log in when it has completed booting, try single-user mode.
If you are using GRUB, use the following steps to boot into single-user mode:

If you have a GRUB password configured, type p and enter the password.

Select Red Hat Linux with the version of the kernel that you wish to boot and type e for edit. You will be presented with a list of items in the configuration file for the title you just selected.

Select the line that starts with kernel and type e to edit the line.

Go to the end of the line and type single as a separate word (press the [Spacebar] and then type single). Press [Enter] to exit edit mode.

Back at the GRUB screen, type b to boot into single user mode.

----------------------------

now edit the /etc/inittab file to go into runlevel 3 so you wont start x windows automatically.

now change this line

id:5:initdefault:

When you're done, it should look like this:

id:3:initdefault:

[bwkaz]

KT400 workaround (http://www.nvnews.net/vbulletin/showthread.php?s=&threadid=9927&highlight=kt400+%2Asba%2A), posted by Andy Mecham (one of the guys that works at nVidia).

This issue is also covered in the driver errata, available from a link at the bottom of the driver download page:

o Starting X with AGP 8x video cards on systems with KT400 AGP
chipsets cause system hangs.

Solution: this problem can be worked around by disabling AGP
(Option "NvAGP" "0") in your XF86Config file.

Alternatively, you may be able to enable AGP 8x on your KT400 based
system by overriding the default NVreg_EnableAGPSBA registry key.
To do this you can either:

- set the value on the modprobe command line; for example:
modprobe nvidia NVreg_EnableAGPSBA=1

- add an options line to your module configuration file,
usually /etc/modules.conf; for example:
options nvidia NVreg_EnableAGPSBA=1

and use NVIDIA's AGP (Option "NvAGP" "1" in the Screen section
of your XF86Config file).

[jepylu]

thanks!!!