Hi! I am running Hardy Heron on an Acer Travelmate 4502WLMi, and am experiencing similar problems. The system will hang within seconds after Gnome login, unless acpi=off or acpi=ht is specified at boot time. I can run Gutsy with ACPI turned on without any problems.
When copying /proc/acpi in recovery mode, the system will stall completely when reading /proc/acpi/battery/BAT0/alarm (battery must then be removed in order for the computer to be turned off!). It will also stall on /proc/acpi/event, but resumes copying when the power button is pressed. I have noticed that the path /proc/acpi/battery is not present on Gutsy, which initially made me think that the ACPI battery subsystem was the culprit. However, I have tried blacklisting the 'battery', 'ds2760_battery' and 'sbs' modules (which is confirmed by the path /proc/acpi/battery not showing up), but the system will crash nevertheless. I have also tried removing the blacklisting for acer_acpi (which has been deprecated in Hardy in favor of acer-laptop) and instead blacklisted acer-laptop, but the problem persists. ** Attachment added: "/proc/acpi (in recovery mode)" http://launchpadlibrarian.net/14052594/acpi.tar.bz -- [Gusty/ Heron Development] system crashes on ac power unless acpi=off, but runs on battery https://bugs.launchpad.net/bugs/148637 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
