Kubuntu freezes every time after boot

[linguru]

my kubuntu 7.04 freezes all the time. it does not work even for 5 minutes. i have all power management turned off like acpi, apmd, powernowd. it seems like the kde or os freezes when i am using my syanptic touch pad mouse. the same thing also happens if i use external usb mouse.

to test hardware i installed fedora 7. it work perfectly and was very stable. did not have a crash. now i am back to kubuntu and it crashes all the time.

i am running standard kernel 2.6.21-generic on Dell inspiron 8200 laptop about 5 years old. i know this is not hardware problem since kubuntu 6.06 and fedora 7 work perfect.

i have tried alternate kubuntu installation cd. seems to be better but it also freezes many times.

i am really frustrated. any help appreciated

thanks,
linguru

[klerfayt]

Re: Kubuntu freezes every time after boot

try this:
add

options psmouse rate=40

to

/etc/modprobe.d/options

and then

sudo rmmod psmouse

sudo modprobe psmouse

or just reboot