I manage to able to avoid most of the issues as descripted by the orginal reporter on the ASUS N56VZ (bios 217) by following this 'rules' which I found by experimenting:
a) Make sure to have the same 'charger-state' before the system was turned off. For example if I shutdown the machine I first unplug the charger and when I turn it on I make sure the charger is not connected. Or visa versa :-). b) Do not close the lid when shutting down the system. c) Keep about 30% charge in the battery before shutting down. My hunch is that there is sometimes weird going on with the EC (Embedded Controller) firmware. The moment the system starts and it seems to starts doing ACPI calls(?). Some trigger (for example a low battery reading) will cause the EC firmware to crash, leaving the fans running at full speed as a failsafe(?). It is not unusual for the EC firmware to stall or crash. Some Thinkpads suffered with similar issues with their EC firmware crashing on certain calls: http://www.thinkwiki.org/wiki/Embedded_Controller_Firmware#Bug:_Advanced_battery_query_causes_EC_hang I do not know how-to run the kernel in verbose mode such that we could indentify the potentially call causing the EC firmware to hang any pointers welcome. I would be happy to make a case such that we can reproduce the issue reliable allowing us to find a permanent fix for it. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1088146 Title: Asus n56vz battery state is wrong or battery not charging at all. Status in “upower” package in Ubuntu: Confirmed Bug description: I have an ASUS N56VZ notebook. There are some bugs I have mentioned and they are known on ubuntu forums. Sometimes I am getting strange results in battery power state, that are not even close to be accurate. So bugs are: 1) Then I am turning on the notebok with not enough power (3% for example) the fan is going to it`s full speed (no CPU loading at all) and the power indicator shows that power is insufficient. Plugging the power adapter didn`t solved the problem - it was not charging and notebook soon turns off. 2) As I described above, I can`t feed the notebook sometimes (especially on low battery level). 3) I am getting the strange battery state result: sometimes it looks, that it`s charging very slow. Am am working about a hour and my power level just rised from 30 minutes to 40 minutes. 4) I am not sure about this bug, may be it`s a hardware one, but then I turned notebook off with plugged in power adapter, it was not charged at all for the whole night! http://ubuntuforums.org/showthread.php?t=2084696 - here is a proof, that I am not alone ))) ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: upower 0.9.17-1build1 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 Date: Sun Dec 9 13:18:17 2012 ExecutablePath: /usr/lib/upower/upowerd InstallationDate: Installed on 2012-11-30 (8 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True ProcEnviron: SourcePackage: upower UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/1088146/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
