1
vote
0answers
11 views

Battery not detected, /proc/acpibattery empty even it is present

I'm using Ubuntu 14.04 and it is fully up-to-date. But the battery of my laptop is never detected. There is no battery icon on the top bar, the /proc/acpi/battery is empty. I've tried to remove the ...
0
votes
1answer
57 views

BIOS Corrupted After A Failed Suspension

Currently typing from a friend's Wii. My HP 2000-299WM laptop stalled while suspending one night, so I forced it to shutdown with the power button. Now, initial HP splash screen is blank, and leads ...
0
votes
0answers
33 views

Dell D631 + secondary battery can't boot- 14.04 x64

I have a secondary battery in the CD/DVD bay on a Dell D631. With battery installed Ubuntu 14.04 64bit won't boot, stalls at "trying to unpack rootfs image as initramfs". Without secondary battery, it ...
0
votes
0answers
123 views

Laptop won't boot without power cable connected

My laptop is an Acer Aspire 5750 that used to run Windows 7 but is now dual-booted with Ubuntu 12.04 (now my predominant OS). Recently an annoying bug developed in that my laptop won't boot without ...
0
votes
0answers
75 views

Ubuntu 12.04 LTS - Will not boot on laptop using just A/C power

I have installed Ubuntu 12.04 LTS on my Acer Aspire 5741 alongside Windows 7 (Dual boot). The battery is on it's last legs and doesn't charge properly most of the time as it is relatively old. When ...
0
votes
0answers
28 views

not booting on battery - ubuntu 1204 on probook 4445s

There were no problems after initial installation till battery drained completely while the laptop was still on. After this, booting the computer on battery - with power cord disconnected causes ...
0
votes
0answers
35 views

How to make tlp only start after login?

TLP helped me get good battery life on my laptop, but I still have a long boot time in Ubuntu. I wonder if I can allow the boot to run under the OnDemand CPU governor but change the CPU governor to ...
0
votes
0answers
33 views

Slow WLAN connect on AC power, very quick on battery / LUBUNTU

I found a very weird effect on my Lenovo X220. when I am on battery power and boot the wlan connect is like instantly! when i am on AC power and boot, the WLAN connect (to the same home wifi) does ...
0
votes
1answer
132 views

Slow Boot and Battery Problem in ubuntu 13.04

I'm a new ubuntu user and loved using it. But I'm now facing a problem using it. i.e., Battery Draining very quickly. ( Mine is Dell inspiron 15 - 4GB RAM - 500 HDD - AMD RADEON HD 7670 graphics. - ...
0
votes
1answer
55 views

Unable to boot after depleting the battery

I have Ubuntu 12.04 installed on my Dell XPS 13 ultrabook. I left the laptop on for a couple of days so the battery ran out. After that I am getting a black screen when I try to boot up the laptop. ...
0
votes
1answer
355 views

Auto Boot after Power Failure - Laptop

I'm using a laptop with lubunut on it for a project I'm working on in a remote location. I chose a laptop because of the batter already attached and the frequent power outages. Most power outages are ...
4
votes
2answers
6k views

boot stuck on “checking battery state [ok]”

loaded ubuntu 12.10 but during boot gets stuck at checking battery state [ok]. It appears its some kind of loop where this message keeps repeating. Any idea on how to fix?
5
votes
8answers
23k views

12.04 hangs at “checking battery state”

My 12.04 system hangs at "Checking battery state". At this stage, no commands work eg: Ctrl+Alt+f1, or Alt+f5. I ran recovery mode, and ran the following commands: sudo mount -o remount, rw / sudo ...
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
953 views

Checking battery state errors

First of all, I'm going to need VERY specific answers for I switched to Linux from Windows a week ago and don't know much. Basically when Ubuntu starts it hangs on "Checking battery state". I'm on a ...
1
vote
1answer
745 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 ...
3
votes
1answer
956 views

Lenovo Y460 won't boot most of the time unless plugged in

My laptop won't boot Natty beta 2 unless it is plugged in most of the time (like 2 out of 3 times). After it is booted I am able to unplug it and let it run on battery power with no problems. ...