machine lockup using open GL

[Hans W.]

When I use an openGL screensaver, the machine locks up after a while. Can anybody help me troubleshoot why it does this?

Nvidia drivers installed and working.

Mandrake 8.2 / AMD 1600+/ Nvidia 400mx /Gnome

[Lorithar]

*hmms*

with that processor listed, (AMD) .. have you set the kernel boot parameter
mem=nopentium

It is a known issue with rage 128 drivers in X 4.1.0 and X 4.2.0

I'm not sure which kernel version/X version you're running, but I'd recommend at least 2.4.14 kernel and X 4.1.0 ...

[mdwatts]

Someone posted here a few days ago that they were having similar problems with the openGL sreeensavers.

It ended up freezing when only using one of them. The other openGL screensavers seemed to work fine.

[Hans W.]

Can you help me a little bit, where I find and which file to edit the boot parameter. Still feel somewhat really unfamiliar with this os, so I can use your help. Thanks for all the effort.

[mdwatts]

Are you using Lilo or Grub as your bootloader?

For Lilo, edit /etc/lilo.conf and add append = "mem=nopentium" and then run as root, /sbin/lilo to write the changes.

If Grub, edit /boot/grub/menu.lst and add mem=nopentium to the kernel line.

kernel = /boot/vmlinuz-2.4.13-modular vga=274 quiet mem=nopentium noapic root=/dev/hda5

[Choozo]

Have a look at this (http://www.linuxnewbie.org/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic&f=4&t=016097) thread if LILO is your bootloader.

Cheers :)

[ 22 May 2002: Message edited by: Choozo ]

[bwkaz]

It's not the boot parameter if he's running an Athlon XP or MP (which it looks like he is).

The Palomino cores (XP/MP) are NOT affected by the AGP bug. Only T-Birds, Durons, etc. are.

[Choozo]

Yup, I'm also leaning towards Watts' first reply about one of the OpenGL screensavers causing this.