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Restarting lightdm fixes it for me too. There is a bug on Launchpad, and it seems to be related to people who have SSD's.

bug page

Also note that if your computer has an integraded graphics card of any kind, even if its not being used, it may suck up to a gig of ram out of your memory pool.

Uppon further investigation is seems that this directly corrupts .Xauthority somehow...

I'm not quite sure what's causing it, but whenever I reboot instead of the login screen, I've got a black screen with the mouse cursor. If I hit ctrl alt f2 I can login, delete .Xauthority and...

And some fixes maybe?

Are you also using a ram-disk? If not it's most probably your home directory's permissions are messed up. Try hitting ctrl+alt+f2 or f3 to get a terminal and
sudo chmod $USER:$USER $HOME then...

I've recently updated (clean installed) from 12.04 to 12.10 on my samsung np900x4c and am having an odd problem with the desktop manager.

On my old install I had these additions to my fstab file...

Not the same laptop, but I can write to that file and change my keyboard backlight. I'm going to poke around some more. Thanks for the help!

Toz, thanks for the insight, I'm going to check that out now. I have a Samsung laptop so that ASUS site, probably won't help, but thanks for pointing me in the right direction!

EDIT: Also, where...

Your laptop monitor probably requires a proprietary driver. The 12.04 live dvd should download and install it for you, so your laptop should work.

Is it by any chance a wireless N card? Because there is a known kernel issue with N and certain cards.

You actually need to use Oracl's Java for minecraft. OpenJDK doesn't run so well with it. http://www.wikihow.com/Install-Oracle-Java-on-Ubuntu-Linux

Yes. IMO Gnome 3 / Unity are a step in the right direction for desktop OS's. You can kind of see it in Windows 8 / OSX, but personally I think Unity did it best. You have integraded search, a non...

I have a relatively new Samsung laptop, and the suspend for me actually (from what I can tell) shut's off the laptop. All lights / fans etc are off, and I have left it for days and come back to a...

Better yet, I'm a fairly competent c++ programmer, how would I go about adding this functionality? or figuring out what to read from / write to to adjust the light values?

I'm also really interested in adjusting the keyboard backlight / main screen brightness based on the ambient light sensor in my laptop. The horribly bloated windows driver was able to do it, I just...

I know it's not free, but Sublime Text 2 is an amazing text editor, with a massive plugin library for linux / osx / windows.

I'm also quite sick of Unity rants, as I really like it myself. I love all of the launching / search functionality that's build in. But then again, not everyone was awesome new-ish harware, and on...

Downgrading tends to be fairly difficult, but it sounds like you're having some pretty hardcore driver issues. How old is your PC? You may want to consider trying an alternate desktop environment...

Yes, you do it the same way as you would update / upgrade ubuntu normally.

It sounds like your kernel headers may not be installed. Also keep in mind, you need to include linux/list.h not simply list.h.

Seeing your question got me currious, and so I looked into it a bit more. It seems as if the only two options are to: 1) serve your sites on different ports, or modify your hosts files to direct that...

On another thread

Configuring / updating hosts files for each machine would be so annoying. At that point I would simply serve the pages on seperate ports, and remember then ports each site was served on D:

Are you trying to install a 32 bit game with a 64bit install of Ubuntu?