After suspend, screen is dead until switching terminals

Binary package hint: xorg

Hello!

I recently updated to Lucid. I noticed this problem:

When I suspend the computer, everything seems OK. However, when I resume, the screen remains turned off. I can see the system turned on—for example, the numlock key turns the LED on and off—but the screen doesn't turn on.

The only thing that seems to work is pressing Alt-F6 and then Alt-F7. I tried pressing other keys (in case the problem was just the screensaver) but that doesn't work. Neither Alt-F7 directly nor other Alt-F# followed by Alt-F7 works.

Once the screen turns on (after Alt-F6 and Alt-F7), the password dialog of the screensaver* comes up and I can continue my session. (* I have my computer set up to lock the screen, but with no actual screensaver on other than turning off the screen.)

Note that after the session resumes I experience bug #528138 which might be related somehow.

ProblemType: Bug
Architecture: amd64
Date: Tue Mar 2 12:28:06 2010
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
NonfreeKernelModules: nvidia
Package: xorg 1:7.5+1ubuntu9
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
SourcePackage: xorg
Symptom: display
Uname: Linux 2.6.32-14-generic x86_64