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View Full Version : [ubuntu] [BUG] Laptop Freezes After Unplugging Power Lucid Lynx Release Canidate



bird1992
April 27th, 2010, 01:44 AM
I am using 10.04 Release Canidate on a Sony VAIO Laptop (built for WINXP in 2005). When I unplug my laptop the desktop environment and ubuntu freeze and the only way to exit this through a hard reboot. Similarly, ubuntu won't boot (black screen after grub selection)if the laptop is not plugged in. Win XP works fine without the power cord so I don't think it is a battery defect. Any suggestions? Or how do I submit this bug to the developers?

ADDITIONAL INFO:
I never had this problem with ubuntu 9.10

bird1992
May 1st, 2010, 10:30 PM
bump

sportnik
May 3rd, 2010, 09:40 PM
I also have this problem. It freezes when i unplug the cable and when i boot only on battery. I freshly instaled Lucid lynx. I have HP laptop 6735b.

sportnik
May 3rd, 2010, 10:42 PM
I also have this problem. It freezes when i unplug the cable and when i boot only on battery. I freshly instaled Lucid lynx. I have HP laptop 6735b.

i solved the problem. I had to install the newest ATI drivers, the same as i had to to with wi-fi drivers.

Go to System -> Hardware drivers -> select or activate neccessary missing drivers (i selected wi-fi and ATI graphincs drivers) now ubuntu boots normally.

bird1992
May 4th, 2010, 02:53 PM
Sadly enough my computer is so old I guess that ati drivers for it do not exist. I installed the fglrx packages and this fixed the problem, but it also broke my graphics card since there were no drivers for it. So now I have to choose between a broken graphics card and a transportable laptop or a working graphics card and a laptop tethered to the wall. I am using Sony VAIO VGN-AX570G with an ATI Mobility Radeon x700 graphics card. Any more help would be greatly appreciated.

bird1992
May 7th, 2010, 05:17 AM
bump

bird1992
May 9th, 2010, 06:14 PM
bump

bird1992
May 10th, 2010, 09:52 PM
anyone???

Ryantoss
May 11th, 2010, 12:15 PM
anyone???

i got very same problem and solved it with ATI driver.

As far as i remember ATI driver use very similar structure. You can try Sportnik's solution

bird1992
May 13th, 2010, 02:19 AM
I can't install the ATI driver because there is none for my graphics card. But what is weird is that without the driver my graphics work flawlessly, but I can't unplug my laptop.

bird1992
May 14th, 2010, 04:35 AM
I solved this problem... I uninstalled Ubuntu 10.04 and reinstalled 9.10. I hate to be disrespectful and I have always loved Ubuntu but this is the most buggy os I have ever used and 9.10 was much better. Also my wifi in windows xp was broken and it turns out once I uninstalled 10.04 it started working again. I have had multiple unsolvable issues with this os, I have sought help and received none. And these haven't been small issues either; Not having wifi or being able to unplug your computer pretty much defeats the entire purpose of having a laptop. I would strongly advise anyone who is considering upgrading to stay with 9.10 which I thought was a great os.

toph
November 27th, 2010, 04:30 PM
I tried this and it worked for me. I can now boot from battery.

http://ubuntu-tutorials.com/2010/05/...up-workaround/

I hope it works for some of you.

Chris

DaveJ1337
March 18th, 2011, 05:14 PM
I installed 10.04.2 an hour ago on a new Dell Inspiron 11 and have this issue as well. I'd much prefer not to use the fglx drivers, but it seems I don't have much of a choice. Poop.