I share in the same issue.
Whenever, the lid is closed (my laptop is set to DO NOTHING on Lid Close) my system get a 'white-screen-panic'-- It starts with blackout and gracefully moves through to all-white screen in a span of 10secs or thereabout.
In Ubuntu 11.04 & 11.10, I solved the issue using the suspend script on this page, but now, that don't work anymore.
It's personally saddening, I use my laptop for presentation everyday (cause I lecture) and use it almost 24 hours. It's painful to know that I HAVE to shutdown every now and then to avoid the 'white-screen-panic'. It's awful!
- While using Unity 2D, this issue is taken care of (suggesting, it's got something to do with OpenGL or Compiz etc.) I tried Gnome Shell, the WSP showed up still.
- I also discovered that if I left the lid closed for a bit longer time, it might in many cases work when I open the lid (This, I guess has worked 40% of the times :'( )
- This issue also persists when Ubuntu tries to switch screens between projector and system screen. Interestingly, plugging the projector (VGA) cable back works on the projector but not on the system's display.
My system's info
ikon@P34CE2:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
ikon@P34CE2:~$ uname -ar
Linux P34CE2 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
- Graphics card: Optimus Nvidia Geforce GT540M CUDA
- Model No.: U41SV Asus
If additional info is required, we'll be willing to give.