Me too I think there is a serious bug in the latests kernel for a little older Laptop's My laptop is Asus L5GM, P4 3.2GHz, 512K, FSB 800Mhz with 2 coolers near the CPU
Before the report in the powertop was: Cn Avg residency P-states (frequencies) C0 (cpu running) ( 100,0%) C1 0,0ms ( 0,0%) C2 0,0ms (0,0%) and the 2 coolers was running in the maximum speed (harmimg my laptop..) My system monitor detect 2 CPU (i think one is virtual), althought my laptop have a single P4 CPU After i follow the tips of Tomasz in the menu.lst title Ubuntu 8.04.1, kernel 2.6.24-19-generic root (hd0,2) kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=4a935913-2ddd-43c5-b857-f8a17375cbbd ro quiet splash acpi=force nolapic noapic idle=halt initrd /boot/initrd.img-2.6.24-19-generic after reboot the laptop the result was Cn Avg residency P-states (frequencies) C0 (cpu running) (17,2%) C1 0,0ms ( 0,0%) C2 8,9ms (82,8%) and the speed of the coolers reduce enormous with system monitor detecting 1 CPU In my laptop i have installed RedHat 9, Fedora 2, 4, 6 and didn't have these problem before. The problem is that who develop these kernel's they don't test the kernel's with the most general CPU's -- Powertop reports that CPU state is C0 100% of the time, regardless of number of wakeups https://bugs.launchpad.net/bugs/176553 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
