It's maybe a fisrt way to fix it, but I have not this option in optiplex 740.
Source : http://blog.thegeeknme.com/2009/10/karmic-koala-910-on-dell- optiplex-960.html When I boot the Karmic Koala 9.10 on Dell Optiplex 960 the Ubuntu menu loads however, if I choose Install or Run Live, I get a blank blank screen with a blinking cursor. Oddly... if I hold down the enter key it will proceed through the boot and load Ubuntu 9.10 very weird. The best solution so far is to go into the BIOS (press F2 when the PC first turns on) and under PERFORMANCE menu disable C STATES CONTROL. Apply your settings. Exit. Boot the Ubuntu CD again and enjoy -- LiveCD freeze https://bugs.launchpad.net/bugs/464710 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