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The "auto restart" problem has become a classic Linux (in my case Ubuntu) problem. After solving the problem three times, I still don't understand what's been causing it. But as a software guy, we can always blame it on the hardware right (LOL). Read also my previous article.
So, why did I get to face this problem three times?
First I have to tell you my specification:
- Acer Aspire V5
- Intel i5 (I don't really know, is it quad core or not)
- Nvidia Geforce GT 620M 1GB
- HDD 1TB
- Dual boot, Windows 7 and Ubuntu 14.04 (with LXDE)
The first case:
- The first time I bought this machine, I directly made it as a dual boot, between Ubuntu 13.10 and Win XP, then I upgraded the Win to Win 7.
- When I finished with the fresh Ubuntu installation and made my first "shutdown", then the "auto restart" behaviour happened.
- The solution was: adding rmmod ehci_hcd line to the /etc/rc.local.shutdown.
The second case:
- It was a case of kernel updates. An uncompleted kernel installation was the caused of this mess, as suggested by some friends.
- Off course the first solution did not work, then the next trick was: to install laptop mode tool using the following command sudo apt-get update && sudo apt-get install laptop-mode-tools.
The third case:
- The last case (hopefully) was when I upgraded the Saucy Salamander to Trusty Tahr.
- Finally I did this trick as suggested in the AskUbuntu:
sudo gedit /etc/default/grubthen find a line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash". Modify it to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" acpi=force apm=power_off.
There you go, my three cases. Hopefully no more.