Kernel Panic when monitor goes blank

lothar

When my gentoo box is idle for some time and the monitor goes black to save power and I try to wake it up I get a kernel panic.
I can see 3-4 lines on the top of the screen but suddenly it stops and the leds on the keyboard starts blinking... I've disabled all the power saving in bios, what can be the solution to this?

Here's some information:

didl · Posted: Mon Aug 30, 2004 3:34 pm Post subject:

Are you running X on this machine, i.e. could it be X by any chance?
In case it is the kernel what do the logs say, i.e. dmesg, syslog ... ?

lothar · Posted: Mon Aug 30, 2004 4:13 pm Post subject:

No X, just plain terminal..
I can't see anything weird in the logs.. what am I supposed to look for? There's no error message before i reboot it..

didl · Posted: Mon Aug 30, 2004 4:29 pm Post subject:

Are you using APM or ACPI? If you use ACPI try using APM.
For APM, you might want to have a look at the kernel
config options for it and play around a little. IIRC some BIOSes
have issues communicating properly with the kernel.
Maybe there are some hints on the forums for your particular
mobo.

lothar · Posted: Mon Aug 30, 2004 6:20 pm Post subject:

I am using ACPI, yes.. but I've only loaded the button module... to turn of the computer

bryhhh · n00b Joined: 01 Apr 2003 Posts: 73 Location: /etc/passwd

Are you running your console with framebuffer?

I had exactly the same problem a short time ago with a console only box running a 2.4 kernel. I discovered that disabling frame buffer solved my problem.

lothar · Posted: Tue Aug 31, 2004 10:44 am Post subject:

Yes I'm using framebuffer... to disable it, is it just to comment out this in lilo.conf?

bryhhh · n00b Joined: 01 Apr 2003 Posts: 73 Location: /etc/passwd

I removed the relevant bits from grub.conf (lilo.conf in your case), but to be safe, I'd recompile your kernel without FB support. That's what I did to fix mine. - It's pointless having support for something in the kernel that you aren't going to use, and it's easy to put back if you discover that this doesn't fix the problem for you.

Hope that helps.

bryhhh · n00b Joined: 01 Apr 2003 Posts: 73 Location: /etc/passwd

Just for info, the graphics on the box I had problem with are integrated onto the motherboard. I can't remember the motherboard type, but it's a K6-2 motherboard, and the onboard vga is given as, "VGA compatible controller: ATI Technologies Inc Rage 128 RL/VR AGP (rev 0)."

lothar · Posted: Wed Sep 01, 2004 6:16 am Post subject:

I removed the