Linked Questions

0
votes
0answers
11 views

poor battery on hp probook 4540s on ubuntu ! help pls [duplicate]

hi i just bought a new hp probook 4540s , I have ubuntu 13.10 and windows 7 on 64 bit installed . the batery on windows last abaout 4h30m and in ubuntu only 1h20m this is not normal ! can enybody help ...
114
votes
22answers
83k views

Tips to extend battery life for laptops and notebooks

This question is present as a matter of historical interest. While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask ...
35
votes
6answers
7k views

Is system cleanup/optimization needed

Does Ubuntu need regular cleanups like Windows. For example: Cleaning the logs Temporary files Package cache Dependencies left over I am not referring to web browsers only. In case I never do a ...
29
votes
5answers
18k views

Why does my computer get less battery life with Ubuntu compared to Windows?

Last year I purchased a Dell Inspiron 5315 laptop shipping with Windows 7 preinstalled. I installed Ubuntu 10.10 alongside it with dual-booting. On upgrading to Ubuntu 11.10, I was upset to find I now ...
24
votes
7answers
25k views

How do I make Powertop changes permanent?

I'm on a Compaq 615 and it's fan is loud as hell. Not much you can do about that but I'm trying to keep the CPU/GPU as cool as possible. This is what Powertop has to say: If I change all of them ...
5
votes
7answers
11k views

Disable “ondemand” CPU scaling daemon

I have a server that, as of the upgrade to 10.04, is now running the "ondemand" CPU scaling daemon. Why would it automatically install this? I don't want my server saving power at the expense of ...
11
votes
3answers
44k views

How to fix 3D Acceleration for Vmware Workstation 9?

I have recently installed Vmware workstation 9 on Ubuntu 12.04 & i have migrated my VM's from windows to Ubuntu 12.04 . Now i am getting openGL error & it says no 3D acceleration as shown in ...
5
votes
4answers
14k views

How can I prevent iwconfig power management from being turned on?

I am affected by this bug: 869502. A workaround which seems to stop the kernel panics for me is to disable wlan0 power management: sudo iwconfig wlan0 power off However it seems to automatically ...
7
votes
4answers
6k views

How to correctly enable/test VA-API on Intel Sandy Bridge?

I would like to know which package I have to install and how to test that is working fine? I know there are many question similar but no one is complete and clear to me
6
votes
6answers
13k views

How to disable auto power off of usb devices like usb mouse?

I don't know how , but somehow automatic power-off of usb devices got accidently enabled. Now my usb mouse goes off even if it's idle for 2-3 seconds. it's really irritating. help?!!!!! P.S. This ...
3
votes
5answers
8k views

Does Jupiter really improve battery power?

I installed Jupiter on Ubuntu 11.10 and set the preference mode to "Power Saver" but haven't seen any noticeable difference. Does it really do what it claims?
3
votes
4answers
5k views

How to keep the laptop's temperature low without hardware cleaning?

Last few days I found out that when I open Google Chrome and the laptop's fans start working really hard and I can not touch the mousepad because of heating. I use Ubuntu 11.10 on my Toshiba A350-22z ...
5
votes
2answers
8k views

How do I enable VDPAU hardware video acceleration support for non Nvidia cards?

I've read about VDPAU and how it enables mplayer to have Hardware acceleration. But i also read that it's only for Nvidia cards How can i enable it on a non Nvidia card (mine it's a AMD but i would ...
7
votes
4answers
2k views

Is Ubuntu better on battery than other OS's? [duplicate]

nothing really to say here, except it would be cool to get some examples on what OS's might save me battery life and if you have any suggestions on apps that would save battery on ubuntu that would be ...
6
votes
2answers
10k views

Ubuntu 13.04 CPU frequency scaling 'stuck' on lowest frequency

I've just installed Ubuntu 13.04 on my MacBook Air, after toying around for awhile the machine felt really slow, so I checked out the CPU frequency. cpufreq-info, it reports 800MHz on all 4 cores ...

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