"cat /proc/cpuinfo" output with kernel options "acpi=off noapic"
** Attachment added: "cpuinfo (acpi=off)" http://librarian.launchpad.net/6823934/proc_cpuinfo_acpi%3Doff_noapic_nolapic.txt ** Description changed: I have a newly bought laptop that refuses to work properly with ubuntu. It is a laptop built by a local manufacturer in Greece (Multirama: model M66N) and has an Intel [EMAIL PROTECTED] CPU with 1GB of RAM. I'll provide a full lspci later as soon as I find how to add attachments. The laptop works with no problems under windows so it's definitely not a hardware issue. What's interesting is that the BIOS reports itself as EFI and maybe this is to blame for what follows. If I have acpi on, the hald process remains stuck, constantly consuming 100% of the cpu as reported by "top" (utilising one of the two CPU cores), I can't mount any external devices and the laptop cannot reboot or halt on its own, I need to use the power button to do that. The battery applet in gnome does not work at all. No icon or information is shown whatsoever. If I try to do a simple "cat /proc/acpi/battery/BAT0/info" or "cat /proc/acpi/battery/BAT0/state" from a terminal the system gets stuck and I have to force quit on the terminal window to exit (Control-C does not do anything). Doing a "cat /proc/cpuinfo" the CPU is reported (I think correctly) as 2 single core processors (I'll add this as an attachment later). Looking at the output of "dmesg" right after boot I see that "pci =assing-busses" and "pci=routeirq" are recommended but using them does not change anything. If I try to turn acpi off by passing acpi=off as a kernel parameter the laptop does not boot at all. Right now I use "acpi=off noapic" as kernel parameters as it is the only way that I found to somehow use the laptop. The laptop boots, but of course I don't have any access to acpi functions which are essential for a laptop and I have to switch it off manually using the power button. - Doing a "cat /proc/cpuinfo" reports the the CPU is 1 single core + Doing a "cat /proc/cpuinfo" reports that the CPU is 1 single core processor and I believe that the second core is not used at all. I am using edgy, but have also tried dapper and an upgrade to the feisty kernels with no success and I have also tried 386 and generic kernels. -- Laptop problems with acpi and cpu https://launchpad.net/bugs/92525 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
