Tagged Questions
0
votes
0answers
247 views
My ubuntu 13.04 x64 cann't do cold boot in battery?
I am using HP-Pavilion G6-2005ax, powered by AMD APU A8-4500M, 4GB RAM, 500 GB HDD and AMD Radeon HD7670M 1GB. I am using Ubuntu 13.04-amd64 version. While I am doing cold boot on battery, the Lap ...
0
votes
1answer
196 views
How can one disable Wi-Fi power management when using Jupiter?
Background and Problem
My laptop (Lenovo ThinkPad X131e 3372-2VU, running Ubuntu 12.04 LTS) freezes when Ubuntu tries to manage the wireless interface's power.
I had to manually disable wireless ...
1
vote
1answer
130 views
Strange behavior with ssh on Ubuntu 12.04 server
Recently I installed Ubuntu server 12.04 on my computer at home with ssh support. I'm using WiFi instead of cable connection for this server. Everything works fine except the fact that for some ...
0
votes
0answers
30 views
Ubuntu slows Windows wireless when plugged in
We have a wireless LAN with an Ubuntu 12.04 laptop and a Windows 7 laptop connected. The Ubuntu laptop always gets download speeds of 19-20 Mbps and upload speeds of 1.92 Mbps. The Windows 7 laptop ...
0
votes
0answers
86 views
Wireless not available after installing laptop-mode tools on my Toshiba Satellite L650-14E
After installing Laptop mode tools on my computer with Ubuntu 12.10 my wireless adapter has become disabled. Among available connections wireless connection is not appearing at all.
I have tried a ...
3
votes
2answers
208 views
Which one consume less battery in Ubuntu (generally Linux) Ethernet cable or Wireless?
I am wondering when i want to connect to network, it is better use my wireless adapter or using cable (ethernet adapter), Which one consume less battery?
Sometimes i saw that my battery life was more ...
0
votes
0answers
266 views
When the wireless connection is active, Ubuntu 12.04 does not restart or turn off
I performed a clean installation of Ubuntu 12.04 (on a laptop with Intel Core2 Duo CPU T7500 @ 2.20GHz and 2 GB RAM), overwriting the previous version. During the installation I decided to install ...
0
votes
2answers
3k views
Wireless card power management
I have noticed that when my computer in plugged in, the wireless strength increases. I'm assuming this is to do with power management.
Is there a way to disable Wireless Power Management?
I have ...
1
vote
2answers
2k views
Turn-off WiFi / WLAN & Bluetooth completely (electrically off), how?
In windows, most laptops these days have a hot-key to turn off wireless modules completely (i.e. airline mode), including WLAN and Bluetooth. I am currently on Ubuntu 11.10, and wondering as to what ...
4
votes
4answers
5k 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 ...
5
votes
5answers
7k views
Scheduling StartUp and ShutDown
I use Torrents often, so I need to know how to make my computer start up and shut down automatically, Wi-Fi is switched on at six in the morning in my hotel and switched off at two AM. (I am able to ...
1
vote
1answer
2k views
Broadcom b43 power management [closed]
I can't enable power management functions on my Broadcom BCM4311 WLAN card (as sugested by PowerTOP)
Here are some prints:
root@grumpy:~# lspci -vnn | grep 14e4
0c:00.0 Network controller [0280]: ...
6
votes
2answers
2k views
Why is wireless down/strange after switching to battery or closing/opening the lid?
I noticed that, when I unplugged my laptop, or closed/opened the lid, my wireless connection dropped, every time.
I tracked it down to pm-powersave, and made it stop, see below.
This could also ...
0
votes
0answers
327 views
Intel iMac disconnecting from wifi even though set to never sleep? [closed]
I have an Intel iMac with Ubuntu 11.04 installed. My screensaver settings are set to "blank screen", and my power manager settings tell the computer to "Never" go to sleep and only put the display ...
2
votes
4answers
2k views
How can I keep a wireless card's radio powered off by default?
My desktop's PCI wireless card is always scanning for available wireless networks, but I only rarely use it. Can I keep the radio turned off until I need it?
