Ubuntu 9.10 Will not sleep/hibernate

I feel like I'm clogging up this forum, but im newish to linux. I've read there is problems with Ubuntu sleeping and hibernating, but I have an Acer Aspire 5100. It was able to sleep fine (I usually don't use hibernate) until yesterday. Now every time I hit sleep or hibernate the screen goes black and there a _ (underscore) blinking at the top left. Any ideas?

 

here's something u may want to look into:
http://www.ubuntugeek.com/fix-for-suspend-and-hibernation-problem-for-laptops.html

how are u liking ubuntu so far..despite a few quirks?

 

Thanks for the quick reply... All I can say is WOW! I've tryed live cd distro's and was never completely happy with the layout. I should have switched a long time ago. Linux has really come a long way

 

your welcome! enjoy linux!

 

Well I tried that to no avail. I noticed it stopped working after I entered a tty1 command to edit the login menu a bit (export DISPLAY=:0.0, gnome control center) What made me state that was the fact that when I used the command to sleep after installing the above package it brought me to the tty1 command line with my export DISPLAY command results still there and the same _ blinking after user@ubuntu and I couldn't type or anything.. Does that make sense?

Edit: also alt-f7 didnt work either to get out.

 

mmm..you could always look in the ubuntuforums..here's a link to some hibernate/suspend issues.
http://ubuntuforums.org/search.php?searchid=69877862
and if not..lol..i asked someone who may be able to help better..he'll be here in a lil while .

 

Yes, Ubuntuforums is your friend. It's ALL in there. I patronize openSUSE kde4 now, but don't remember having any problems with Ubuntu 9.10 hibernating or suspending, so it's not inherent in the OS...probably just some tweak somewhere.

Hang in there like shrunken underwear and you'll get it solved. That's my tech-speak for the day

 

What i dont understand is: sleep was working fine and I made no hardware changes or major software installations...just some appearance tweaking. Now its not working. Is that normal for it to stop working after it already had been working

Edit: I found a problem similar to mine. Trying it and ill let you know if it fixes it.