As mentioned above, I can confirm that I have the same issue with my Inspiron 4150. Acpi suspend garbles the screen on resume no matter what I do, and I can't find a decent workaround. Apm suspend freezes the system if used (in any way) inside any X server (Xorg or Xgl). The only thing I've found that works is to switch to a different console with Ctrl-Alt-F6 and do apm suspend from there. Then on resume, the bios hangs and has to be reset manually (Fn-z) to stop the fan from going nuts, but otherwise the system works fine.
Interestingly enough, FreeBSD (5.5 and 6.1 that I have tried) handle apm suspend fine from within Xorg. (It resumes faster even than Windows.) Though (possibly pointless info) the system clock and wireless network fail to refresh themselves after suspend. -- garbled video output after resume if lid was closed during suspend state (Inspiron 4150) https://launchpad.net/bugs/31425 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
