temporary freeze-ups with PCBSD90+KDE

[BlackThunder]

Hello,

PC-BSD seemed to tun withpout any problems on my Thinkpad T42. But if i let it alone for about 2 Minutes the display freezes and the mouse courser doesn't move any more. After pressing a key everything runs well again.
It seems that even network connections are affected, too. NFS connections will lock up, too!
When switching to console e.g. v0 the console does freeze-up, too after 2 minutes. Only switching to X and back helps in this case. Keyboard input is recorded during the display freeze.

I already disabled all powermanagment settings in the system settings manager and made sure screen saver is disabled.

The notebook operates with powersupply attached.

Til now i had now problems with pure FreeBSD und this Thinkpad. So i don't now where to look to get rid of this odd behavior.
Any hints?

[BlackThunder]

In the meantime i tried to boot without acpi but the problems still exists. I don't know how to find out the reason for this strange behaviour.

No hints?

[kmoore134]

Try this:

xset -dpms

Sometimes its a bug with the energy saving features

[BlackThunder]

thank you for the hint. Unfortinately it didn't work for me. I tried to execute 'xset -dpms' after starting PCBSD(kde) in a xterm with user and with root privileges but in both cases the behaviour doesn't change.

I took a look at xset q after a fresh reboot which gave me the following:

...
DPMS is Disabled
...

and in Xorg.0.log i have

...
(==) RADEON(0): DPMS enabled
...

Please let me know if you need any further information from my system.

[kmoore134]

When this lockup occurs, do you see any messages on the console, or in
"dmesg" output?

How about if you use a different window-manager, does it do the same thing?

[BlackThunder]

i get no log information in dmesg or messages.
But when trying the other desktop environments like gnome,lxde,xfce and fluxbox i wasn't able to reprobduce the lockup. Changing back to KDE without reboot didn't lockup the system ether.
The Lockup only occurs if KDE is chosen the first time after boot. After loging off and on again (KDE) no more lockups occur.