So many Italians here (I'm one of those). So, I also have the same problem since one year more or less. Same problems as everybody on my Acer Aspire 5730z (the problems has been occurring with both 32bit and 64bit operating systems): 1) infinite lines of this kind:
May 31 23:59:32 superman-Aspire-5730 kernel: [225248.316012] ACPI: EC: input buffer is not empty, aborting transaction May 31 23:59:32 superman-Aspire-5730 kernel: [225248.316021] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20120320/evregion-501) May 31 23:59:32 superman-Aspire-5730 kernel: [225248.316034] ACPI Error: Method parse/execution failed [\_SB_.AMW0.WMCA] (Node ffff8800b6a3a960), AE_TIME (20120320/psparse-536) May 31 23:59:33 superman-Aspire-5730 kernel: [225248.816042] ACPI: EC: input buffer is not empty, aborting transaction May 31 23:59:33 superman-Aspire-5730 kernel: [225248.816054] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20120320/evregion-501) 2) when the laptop does not reboot, I unplug the mains power and also the battery and then push the bower button for a couple of time, then plug the battery and/or the cable or both and everything works on again. 3) problems sometimes when trying to tune the LCD brightness, the system can even hang definitively and halting/rebooting is the only "solution" 4) generally, the system suffers some slow downs 5) one of the 4 usb ports is not working (is it related to the original problem?) 6) I'm not sure whether 64bit Linux based operating systems (as well as Win XP Professional 64) fully recognize the 4GB of RAM (is it related to the original problem?) Kernel 3.5.0-31-generic #52-Ubuntu SMP Linux Mint 14 (64bit) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/578506 Title: [Kernel] ACPI: EC: input buffer is not empty, aborting transaction To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/578506/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
