I have an old Powerbook G4 (Titanium DVI 867 Mhz). I'm running Ubuntu Dapper on it, and I am massively impressed. Everything works great. The only problem is its suspend feature. Suspend works fine and everything, but when I resume the screen stays blank.

It's weird because the computer is fully responsive, except for the screen being off. All the keys work, network and sound works, I can ssh into the machine and do anything I want. I can even remote desktop to it and see my desktop (doing that, I can verify that the powerbook's mouse and keyboard are still responsive).

Getting suspend to work fully is the only thing keeping me from running Dapper on this thing full time. (I really like using Mac OS X under it via Mac-On-Linux).

Thanks,

I've got the same problem on my Presario 2700. I haven't been able to fully resolve the problem, but this technique works for me: If you're using X, press Ctrl-Alt-F2. This bring you to a text console. Then press Alt-F7 to go back to X.

I also have this problem sometimes. The above method works for me. Though I dont use suspend to ram much, I think with the latest kernel 2.6.16.20, this problem has gone away for me.

i had the same problem on my acer, my fix was to use standby instead of suspend, try this:


open a terminal and as root, (not sudo) cat /sys/power/state

if it echos back mem and standby you have support for both, first try echo'ing standby into state

echo standby > /sys/power/state


if it's able to recover then you've found your answer, you just have to set all of gnome's power preferences to "do nothing" and then create an acpi event in /etc/acpi

if you want to try echo'ing mem > /sys/power/state go for it but it will probably do the same thing as gnome does when it sleeps.