Kubuntu Hangs intermittently. Video goes crazy from time to time.

[Ric Moore]

On Thu, 2009-10-08 at 15:53 -0300, Juan Marcelo Rodríguez wrote:
> Hi guys,
> Kubuntu hangs intermittently. This is awful and very uncomfortable.
> 
> Hardware: Dell Vostro 1520 - Intel dual core 2.20 Ghz - 4 Gb. RAM -
> Video Intel - Broadcom WiFi.
> 
> Karmic Koala - latest version installed from daily cd version of
> Karmic Koala and then updated to the latest packages.
> 
> The kernel gave the : hpet increasing min_delta_ns from time to time.
> Then, by time to time I don't receive anything, but I got the video
> going crazy, hanging the system.
> 
> Also I got, as a warning or error or advice, from dmesg the following :
> 
> CPUFREQ: Per core ondemand sysfs interface is deprecated - up_threshold
> 
> This is awful, absolutely awful. And makes impossible to use the
> system. I tried the following kernels : 2.6.32-020632rc1-generic,
> 2.6.31,
> 2.6.31-10-generic and 2.6.30-02063006-generic.
> 
> Any ideas ?. I read that the problem is with hpet. However I have hpet
> disabled in Grub2.
I'm running Karmic but grub2 hasn't been installed. Still running grub.
SHOULD I be using grub2?? Ric