[Bug 405120] Re: resume from suspend doesn't work (powers off instead) for various Acer Timeline laptops

[Jakob Kartschall]

Stefan:
Thanks for your dmesg, I wasn't able to get an useful output after:

sh -c "sync; echo 1 > /sys/power/pm_trace; pm-suspend"

but you did it!

Latest hash matches in your dmesg was:

[    0.781706] i8042 aux 00:08: hash matches

So i've googled around and found these bug report:
https://bugs.launchpad.net/ubuntu/+bug/236656

I've tested and it worked for me. I'm able to suspend my Acer Travelmate 8471, Bios 1.27, Ubuntu Lucid Lynx 10.04 with 2.6.32-16-generic.
So we need confirmation which other variations works with this patch.

For testing you can hold down [Shift] while grub is loading during boot process.
Add this boot param in the kernel line (beware of the line break):
i8042.reset=1
If it works you can make changes persistent in Lucid Lynx with editing /etc/default/grub with root rights and add the boot param to this line so it looks like this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.reset=1" 

Please report if it works or not.

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resume from suspend doesn't work (powers off instead) for various Acer Timeline laptops
https://bugs.launchpad.net/bugs/405120
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