Reduce laptop heat to save battery power
location: linuxquestions.com - date: January 9, 2012
My notebook model is ASUS K53S. I use CentOS 6.1 .
In this model I cant turn on the Nvidia processor as primary graphics adapter and I had to use the sandy-bridge adapter( Intel HD 3000) as primary display in any OS.
My problem is since I am using linux in it , its producing too much heat and the battery finished within 2 hours.
But the laptop was preloaded with win 7 trial. There the same heat was generated only when I played high-end games with Nvidia processor.
Rest of the times only normal heat was generated and battery lasted upto 4 hours and more but with game within 2 hrs.
In windows there was option whether to use Nvidia adapter or to use Intel HD processor for any application .
So most of the time Nvidia card remained turn off saving the battery power.But I think in linux the card remains on all the time.
Please guide me to save my battery power.
Laptop battery / power management how good?
location: ubuntuforums.com - date: September 12, 2013
How good is Ubuntu at managing laptop battery power, compared to Windows 7? I have an ultranotebook with long battery life, important for writing out and about. I am thinking of just making it an Ubuntu laptop, but I would hate to lose too much battery life if Ubuntu is not good at managing the battery. Any feedback, thoughts, advice on this?
Best distro for laptop battery power
location: ubuntuforums.com - date: February 5, 2008
As far as I can tell, Ubuntu cannot suspend a laptop correctly. This is an important feature for people on the move. I have also heard people complain about battery life from Ubuntu when compared to Windows XP. ( I wouldn't know because my battery failed some time ago)
I know that comparing XP and Gutsy isn't fair because Gutsy is so much newer than XP; I'm just saying I'd like similar battery life.
Are there any distros that are known for being good for laptops in these two areas (sleep mode and battery life)?
Laptop Screen Flicks (with horizontal lines) When running on Battery Power
location: linuxquestions.com - date: September 26, 2010
I have just installed Ubuntu 10.04 LTS 32 Bit on my Compaq Presario CQ40 616TU laptop. My screen flickers (Horizontal Line flicks) in few second interval when running on battery power. This is really annoying.
Here are the details:
1. Issue occurs when running on battery power and is reduced(with a little flickering at bottom of the screen) or almost gone when connected to AC power adapter.
2. The screen also flickers while booting. However it is maximum on battery power.
3. I use Compaq CQ40 616-TU laptop with Intel Graphics Media Accelerator 4500 graphics.
4. I tried Mandrive One Spring 10 and also experienced the same problem.
I changed the Grub file and added i915.powersaver=0 but it did not work. However if I use the laptop with high brightness the problem is reduced (with a little flickering at bottom of the screen) or gone.
I am new to linux and any suggestion is highly appreciated.
[SOLVED] Toshiba L650 Laptop missing the battery meter on 12.04 Unity 2D
location: linuxquestions.com - date: March 26, 2013
I'm running Ubuntu 12.04 Unity 2D as a VMware VM in a Toshiba L650 Laptop.
Thing is I am not able to get a battery meter displayed on the Menu bar on top.
Not having any options for the same in dconf-editor as well.
which netbook Linux distro manages battery power best?
location: linuxquestions.com - date: January 8, 2010
I just bought a System76 netbook off of ebay. The battery is supposed to last 6-8 hours, but I only get around 1.5 hours. I partitioned the drive into 9 slices and installed Ubuntu/Xubuntu/Kubuntu netbook editions for 9.10. It comes with a nice power manager but I'm not seeing results. The netbook run an Intel Atom CPU and was designed to be used with Linux.
I have space on the drive for more Linux netbook distros to try. Would another distro mangage my netbook's battery usage better and which ones?
Battery power seems to have taken a huge dip.
location: ubuntuforums.com - date: September 1, 2011
I was never affected by the previous claims of power regressions, but on Oneiric it seems to have hit me quite hard.
Fedora 15 (kernel 2.6.40) gives me my expected ~45 minutes to an hour of battery life (this laptop is old). After running Oneiric for only about 5 to 10 minutes I get low battery warnings which make very little sense. The one that popped up after a few minutes of use was something like "19 minutes remaining (75%)" and it continues to get worse from there. How is it that earlier in the development cycle, it was fine? Also, wasn't this so-called power regression introduced long before kernel 2.6.40, which I use on a regular basis?
Note that it is actually draining and not giving false warnings.
Can anyone else confirm this, or am I just going insane?
NVIDIA GeForce 8400m2 GB RAMIntel Centrino 1.8 Ghz dual core processor250 GB HD
AMD A6 Laptop, XUbuntu 12.10, Power management config / tuning advice ?
location: ubuntuforums.com - date: March 27, 2013
I've recently got a small "ultrabook-style" samsung laptop ("series 5" with AMD a6 Vision APU type of CPU:Graphics - A6 4455M CPU, it is a 2.1ghz dual core CPU) which had Win7 pre-installed. Battery life is just over 3.5 hours (basic wifi / internet browsing / web page use, brightness mid-level for screen, using pre-configured 'samsung eco mode' power profile in Win7).
I installed Xubuntu 12.10 / 64bit (I've got 6 gb ram on this thing hence 64bit OS pick) - (dual booting, kept windows around for now) - and everything installs very smoothly - all hardware (sound:video:network:wifi) works out of the box without issue. But my battery life is pretty horrible - 1.5 hours if I am lucky. I note that the laptop physically runs hotter, the fans are louder, and I get the feeling power management / resource throttling is simply not working as well.
I installed "Jupiter" power management tools; made sure cpufreq is installed (I'm not convinced it is doing mu
No screen dimming when going to battery power
location: linuxquestions.com - date: December 29, 2014
I would like to have my screen NOT dim when I go to battery power.
I tried this, but no luck.
[SOLVED] Freeze when on battery power Arch Linux x64
location: linuxquestions.com - date: June 1, 2011
Hi, I've got a problem with my laptop and I finally decided to try to solve it. My computer sometimes (not everytime) freezes. It's just when I'm using battery power. I figured out that this is not connected with some specific action (e.g. some app crash), it can freeze 1 minute after start or 10 minutes, I think it's random.
I've checked my /var/log/messages.log file and these are the last messages before freeze (exactly at 9:16:15):
Page: 1 2 3 4 5 6 7 8 9 10