I'm also having this problem on a Dell Inspiron 1501 running Ubuntu 10.04 x64. Kernel version is 2.6.32-24.
This a _severe_ problem for me. When I encode videos, I have always closed the screen and left the laptop. Occasionally, upon opening the lid, the entire screen has turned a weird whitish color, which slowly fades to black. Nothing I do (i.e. Ctrl-Alt-F4) will fix the screen but a hard reboot. While I'm not sure exactly what causes the problem, I suspect it would not occur if the screen (and backlight) turned off when I close the lid. Two notes: 1. "sudo radeontool light off" turns the screen off until I close and reopen the lid. 2. I think the screen blanked but the backlight remained on until recently. I think the screen began to stay on as well after I updated to the proposed kernel (2.6.32-24). -- Closing laptop lid doesn't cause the screen to go blank https://bugs.launchpad.net/bugs/449188 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs