I can confirm this bug. I have a Acer Aspire 8930G Laptop and I am running Kubuntu 9.04 (linux-x86) using the nVidia driver, version 180.44. When resuming from suspend to ram* I just get a blank screen, and I have to reset the laptop. However, suspend/resume isn't the only thing that gets me a black screen. When switching to a tty other then 7 (ctrl+alt+1 for instance) I get a black screen also. It is however possible to login at that tty and execute commands (without seeing what you type). So when my laptop gets suspended because of low power I can resume (black screen @ tty7), switch to tty1 (still black), login at tty1 and execute "sudo reboot", instead of resetting the laptop.
Just another case; when I'm in tty7 running KDE and everything is visible and I switch to tty1 (and thus getting black screen) and then switching back to tty7 (KDE) gets me a black screen. However the backlight of LCD is turned on, which isnt the case in the other black screens described here) and just a mouse pointer is visible and moveable on the screen.. when I wait for a while and clicking some buttons (F12 to slide down yakuake program running by default), and thus creating some work for the window manager I get to see everything the right way again, though KDE shows me a message: "Compositing Performance is Slow, The compositing performance was too slow and compositing has been suspended. Press alt+shift+F12 to resume compositing". At this time there are no nice visual effects anymore. pressing alt+shift+F12 gets me all the nice effects back (window shadows, alt+tab 3D, cube, wobbly windows, alpha channel/transparent KDE menu/notifiers, etc.) I hope this information helps debugging the problem. If any logs/debugging output is required please tell me how. I'm using linux (Kubuntu) for 6 months now, but offcourse I don't know everything. *It wont suspend to disk (freezes with black screen, but I guess thats another problem. -- [Acer Aspire 8930] suspend/resume failure [non-free: nvidia] https://bugs.launchpad.net/bugs/362512 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
