The power-management tag has no wiki summary.
9
votes
2answers
385 views
Screen doesn't always shut off on its own
It seems like when I have certain web pages focused, my screensaver will kick in, but the screen won't turn itself off. Does anyone have any ideas why this might be? Is there a way to disable whatever ...
4
votes
2answers
272 views
Powertop strange results
I have installed Ubuntu 11.04 and battery life decreased by 2 times. Powertop documentation says that there should be 3 wakeups per second, I have 800-900. I think it's very strange because I didn't ...
2
votes
0answers
555 views
power management of USB-enclosed hard drives [closed]
With a typical USB hard drive enclosure, is the full range of drive power management functionality available?
edit: moved this into a separate question:
In what may be an unrelated matter: is it ...
4
votes
2answers
3k views
Ubuntu Server Continuously “goes to sleep”
I am running a web server at home using Ubuntu 11.4 (maybe? I can't 100% recall) on an older AMD 2400+ desktop with 1 or 2 GB of RAM. Sorry I can't recall the details 100%.
Anyway, I have a KVM ...
4
votes
1answer
206 views
pm-utils: No network in suspend scripts?
I'd like to put a script in /etc/pm/suspend.d/ that needs network access (for a very short time) before allowing the system to suspend. However, even with scripts named "001_something" in ...
4
votes
2answers
409 views
How do I prevent GNOME suspending while I finish a compilation job
I am trying to build a custom kernel for my machine which is taking a long time to build (as expected). Is it possible to stop my GNOME desktop from suspending the machine until the compilation has ...
4
votes
2answers
644 views
How to prevent my screens from dimming (going black) from the command line
In KDE, there was a system setting where you could specifically set the monitors to never go black.
Now I've switched to dwm and (it might not be related) my screens dim after about 10 minutes. How ...
2
votes
1answer
1k views
Setting CPU frequency guidelines
I'm changing my CPU frequency because of noisy fan.
I used sudo cpufreq-selector -g powersave for this purpose, but I replaced my Linux system Xubuntu with Lubuntu because it utilizes better ...
1
vote
0answers
61 views
NetworkManager: disabled network when sending system to sleep
When I suspend my notebook, NetworkManager disables the wireless network (in nm-manager.c:do_sleep_wake).
However, I'd love to still use the network for a very short time (to unmount cifs mounts, ...
6
votes
1answer
502 views
Linux kernel 3.3 power regression
I am using Fedora 16 in my DELL n4110. I recently upgraded the kernel from 3.2 to 3.3. In contradiction to the official claim, my system still drains battery as hell. It only provides 1:30 to 2 hrs of ...
4
votes
2answers
615 views
Power management hook for running scripts on wake
I'm looking for a way to run an arbitrary script every time my laptop wakes up.
4
votes
2answers
3k views
How to avoid powering down certain USB devices when a machine is suspended
I'd like to maintain power supply to a USB-powered drive when the system goes into suspend (AKA S3 or "suspend-to-RAM") mode.
Normally the power is cut while the machine is suspended, which causes it ...
3
votes
1answer
2k views
How to adjust charging thresholds of laptop battery?
My laptop is Lenovo T400, and OS is Ubuntu 12.04.
I have not been able to adjust the thresholds for battery starting charging and stopping charging. I observed that its current starting charging ...
1
vote
3answers
789 views
Why kernel 3.6.2 is so much less energy efficient than 3.6.1 on Mint 13?
I noticed, that the power consumption in my ASUS P53E notebook is doubled (from 10W to 20W) when I change from kernel 3.6.1 to 3.6.2 (or later). I use Ubuntu Quantal mainline kernel from ...
