The power-management tag has no wiki summary.
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1answer
45 views
Acpid and Startup Brightness
On Arch Linux on my laptop, I have acpid control the brightness level based on AC plug events. Plugging in gives me max brightness and running on battery sets it at the minimum.
My problem is that ...
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1answer
123 views
Suspending laptop fails ~50% of the time
Running ArchLinux and GNOME 3 on a Thinkpad X220.
When I suspend my laptop it goes into sleep mode and the LED ring around the power button fades in and out.
When a suspend fails, the LED ring and ...
1
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1answer
926 views
No gnome-power-manager command but it is installed on arch
I'm running latest Arch, have gnome and fluxbox and my main windows manager is Fluxbox. I wanted to manage my power settings in fluxbox and i added gnome-power-manager in startup but is says there ...
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1answer
27 views
What does the package UPower output if on a desktop
On Ubuntu 12.04, if I use the command:
upower -i /org/freedesktop/UPower/devices/battery_BAT0
It will output all of the statistics for the battery. However, what does it output if I am using a ...
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42 views
Exynos 5 DVFS or turning off cores in Ubuntu - Scaling frequency for one of the cores only (dual core) (cpufreq)
I was wondering if there is possible to scale only one of the cpu cores in the A15 in Exynos 5 ? I have tried using e.g cpufreq-set -c 1 -f 500MHz, but both cores are set to the same frequency. When ...
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490 views
Can't control brightness on HP Pav dv6t running Fedora 16
I installed FC 16 on my HP Pavilion dv6 with a 9-cell battery. I get approximately 7-8 hours on Windows 7, but at best 3 hours on Fedora. I cannot adjust the screen brightness using the fn keys, nor ...
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65 views
Does UEFI increase battery life?
I've heard about a better power management when using UEFI instead of BIOS. Is that true? It was about energy consumption being more efficient or something like that.
If it is true, has the ...
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135 views
Console won't power off on PowerPC with Debian
I installed Debian 6.0 on a Power Mac G5. First it would boot to a blank screen but I fixed that by blacklisting nouveau as described here.
Now the monitor will never turn off. It's a server so I'll ...
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0answers
190 views
Ethernet NIC power usage on laptop?
I was wondering if the ethernet NIC draws any power at all when using Wifi? If it does, since I rarely use it, so is there a way to completely turn off the power from the device? I know some devices ...
2
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365 views
on puppy linux, how to manage power settings
I'm new to using Puppy Linux, and I'm not able to find a way to manage power settings. The laptop stops working everytime I close and re-open the lid so I want to disable that function from doing ...
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97 views
Opening lid results in black screen (Dell Laptop with ATI Graphics, Ubuntu 12.04, 3.2 kernel, GNOME 3)
For the past few weeks, when opening the lid my laptop often fails to recover from suspension leaving me with a blank screen. Further, when this bug occurs, the laptop fans continue to run while the ...
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Intel Core i3/i5/i7 Sandy Bridge CPU throttling
Intel Sandy-Bridge family i5 Core CPU, running Linux kernel 3.2 (Debian Squeeze/Wheezy), under heavy computation load, does not react to to cpufreq-set -g powersave (using acpi_cpufreq module). It is ...
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0answers
60 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, ...
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0answers
68 views
What changed in Linux kernel (2.6.22) that gives hdparm support for power-on in standby?
Hdparm man page lists for parameter -s:
Enable/disable the power-on in standby feature, if supported by
the drive. VERY DANGEROUS. Do not use unless you are abso-
...
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140 views
How to disable nvidia ion on Asus eeepc 1201NL?
It seems that my netbook consumes battery too aggressively. I've been told that Nvidia ION videocard embedded into it has 2 cores and one of them is consuming battery all the time in Linux, since it ...
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281 views
Cannot control brightness with Fedora 14 on Compaq CQ42
I've done the primary searching of similar questions, Found some, tried the solutions and they didn't work for me. So asking again.
All the keys of my Fn combination works except the brightness ones. ...
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361 views
Disabling lid-closure sleep while on battery in Debian Squeeze
How do you disable lid-closure sleep at the GDM screen (not logged in) on Squeeze?
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56 views
scrolling lost after standby
Linux Mint 14
Cinnamon
I have this below script which I run manually once to enable scrolling after I login.
synclient VertTwoFingerScroll=1
synclient HorizTwoFingerScroll=1
synclient ...
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154 views
Undervolting in Linux
Could you recommend me something different like Linux-PHC for undervolting in Linux?
I would like to undervolt my AMD Phenom 9850 CPU. I am using Debian squeeze x64.
For underclocking I use ...
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72 views
Prevent udevd from inspecting this device?
I think this error message was from my usb mouse, how could I know that?
systemd-udevd[225]: error opening ATTR{/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/power/control} for ...
