-1
votes
0answers
28 views

Lenovo E531, Ubuntu 12.04, x64, freezing

I have installed Ubuntu 12.04, x64 in my Lenovo E531 laptop and I have noticed that when the battery is on the laptop (the AC power is not plugged in) randomly freezes. Nothing responds (mouse, ...
4
votes
1answer
2k views

What is an ACPI GPE storm?

Just experienced a system freeze (no touchpad, no keyboard, screen looked normal), Alt/SysRq/REISUB didn't work, had to press the start button. In var/log/kern.log I find "ACPI: EC: GPE storm ...
2
votes
1answer
3k views

Bootup hangs on “Checking battery state..” after after 12.04 upgrade [closed]

I have scanned thru all the posts on this issue. But I have not been able to get a resolution. Has anyone applied a clean fix to this issue? I had 11.10 on Lenovo Thinkpad T60 and upgraded to 12.04 ...
1
vote
1answer
743 views

Freeze on boot if on battery [closed]

We are looking at a freshly installed Ubuntu 11.04 (64bit) on a Lenovo Thinkpad w520 with an Nvidia GPU. The machine freezes eventually during startup on battery. Startup on AC is fine. The only ...