I have the same problem, but it seems to be a "gdm" problem, not related with acpi nor with "apm"... le te mexplain why:
If i tell it to hybernate it power off at end of it and when powered on again it resumes well. If i tell it to shutdown it does not power off at end, but hey only if gdm was running when asked. More detailed: If gdm is running and i open a terminal window: no way to power off after shutdown, none commands: shutdown, halt --poweroff,... none works If gdm is running and i press Ctrl+Alt+F2 to go to a console at full screen (text mode), but i let gdm running: no way to power off after shutdown, none commands: shutdown, halt --poweroff,... none works But, if i press Ctrl+Alt+F2 to go to a console at full screen (text mode), and do: #sudo /etc/init.d/gdm stop So gdm is stopped then after few secconds i can confirm it is stopped with [ps -A | grep gdm], so i ask to shutdown with: #sudo halt --poweroff Or with shutdown,... all of them at end turns off the power and power off the notebook correctly. I have seen on Internet a lot of forums on where they tell something about acpi=force, apm=power-off,... on /boot/grub/menu.lst also about adding apm to modules,... etc. none of that works for me. And i found that if gdm is not running when calling shutdown it power off correctly. When i was using Ubuntu Intrepid Ibex and Ubuntu Jaunty Jackalope it allways power off correctly, but when i updated to Ubuntu Karmic Koala it starts to not do the final power off when shutdown... now i know the cause is gdm running when calling shutdown. Maybe it is related in some way with Kernel or with propietary ATI graphics driver... Also i can see some near identical lines (more than ten) on /var/messages at the end of it with this error: Kernel: Assertion fail in ../../../../../../../../drivers/2d/lnx/fgl/drm/kernel/hal_rs780.0 at line: 53 I do not know if such error is related with the shutdown problem, but is the last error logged and it is at end ot /var/messages no more lines after it... but i can only see it when not powered off correctly, if i do the trick of stoping gdm it does not appear. Hope this can help someone to fix-it. Till them i will do the trick of Ctrl+Alt+F2 -> login -> password -> sudo /etc/init.d/gdm stop -> sudo halt --poweroff Note: After doing such, i powered on again and then after some hours of work i press shutdown by mistake (did not remember ro do the trick "stop gdm then halt --poweroff") but what surprise! it turns off the notebook correctly... so when i have time i will re-check if it was only once or can be reproduced. I mean: -Power On, then tell destop menu to shutdown normally and check if it turns off. -If not force turn off, then turn on again, do the trick of stopping gdm and halt --poweroff, then power on again then tell destop menu to shutdown normally and check if it turns off. But i will not have time till weekend, so if any one can also check that, it would be great. SOLUTION THAT WORKS FOR ME: Ctrl+Alt+F2 -> Login -> Password -> sudo /etc/init.d/gdm stop -> sudo halt --poweroff -- does not power down the system properly https://bugs.launchpad.net/bugs/439282 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
