On Tue, 2007-01-16 at 22:15 -0500, Len Brown wrote: > try also "apm=off" -- since the ACPI/APM dependency checking > is currently broken in some configs. > > On Tuesday 16 January 2007 22:04, Luming Yu wrote: > > The first thing is to make sure you are running the latest bios, kernel. > > Then, you need to sort out the kernel component/modules/drivers that > > cause the problem. > > If you guess it is ACPI issue, pleas test boot option acpi=off to see > > if the problem goes away. If you guess it is battery issue, please > > remove battery module, etc. > > Please don't forget to enter a bug in bugzilla.kernel.org. > > > > Thanks, > > Luming Ok, I've tested acpi=off and apm=off with the stock Ubuntu kernel. It didn't softlock with either, but I'll try to use one of the two when booting now to ensure it is consistent. with acpi=off, there was a backtrace printed from an unloved IRQ11, and the sound card wasn't particularly happy. These HP laptops seem very picky - perhaps I should buy an IBM next time for linux! I've filed a bug, #7840, http://bugzilla.kernel.org/show_bug.cgi?id=7840 It is under ACPI/Other. Attached to that bug is dmesg output from the normal AC boot, and battery boots with acpi=off, api=off, also an acpidump output from the normal AC boot. I will check the bios, and vanilla kernel tests when I get chance. Unfortunately, it seems quite hard to get a kernel config which exactly matches a stock Ubuntu one (for keeping as few variables changed as possible). I can recompile a kernel source deb for Ubuntu quite happily, but it produces a huge number of versions, and takes many many hours (brings me back to using linux on a [34]86 :)) Thanks for your input Luming, Len. Regards, Peter Clifton - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
