I have a HP ZD7000 laptop with Intel Pentium 4 CPU, Nvidia GeForce Go 5600 and a Broadcom Wireless network card.
On Ubuntu 7.10 (Gutsy) everything was working perfectly fine: wireless, nvidia, compiz, etc.
I wanted to try the new Heron (8.04) so I proceeded to erase the partition where I had Gutsy installed to do a FULL clean install.
The installation went really smooth, but slower than Gutsy. Everything worked like a charm. Even wireless worked without any trouble (had to connect to wired network and get the b43-fwcutter).
Proceeded to install the restricted Nvidia drivers and Compiz Manager. Worked like a charm too!!
Here comes the trouble, for some reason on Hardy the CPU usage is Extremely High when the machine is IDLE. I got PowerTop and it always list at the top b43legacy and nvidia as the top processes that wake up the CPU. On Windows XP the ACPI Temperature reports only 40C but with the newly installed Hardy Heron it goes all the way up to 65C+ depending on what I'm running. The CPU fan blows really hard when running 8.04 (It was cool and quite on Gutsy 7.10).
Now I'm afraid to use my Linux partition because I can fry the CPU or motherboard.
Is anybody experiencing the same High CPU Issues? Is there a way to solve this?