Hi Steve, Thanks for the report. > OS Information > OS: Linux 3.1.0-rc9-1-desktop x86_64 > System: openSUSE 12.1 RC 1 (x86_64) > KDE: 4.7.2 (4.7.2) > > Hardware Information > Lenovo Thinkpad L420 Model number 78544KM > i5-2520M(2.50GHz) > Intel HD Graphics > > Problem > Fails to boot without boot option of either acpi=off, nosmp, or maxcpus=0 How about simply "noapic" or if that fails, then: maxcpus=1, noapic That should get you up in ACPI mode, but w/ the IOAPIC disabled. > Almost immediately freezes. CapsLock does not work and only way to continue is > to power off with the power button. > > With debug on last line of output reads: > ACPI: CE: Look up EC in DSDT > > Fails with kernel 3.04 and 3.1 and all distro's I have tried with. have you tried any distros that are running a kernel older than 3.04? thanks, -Len -- 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
