The same problem here with a Dell Inspiron 510m. None of the proposed fixes helps and I couldn't find any way to change the video memory settings in the BIOS. I tried different settings for VideoRam in the xorg.conf instead - without any success.
-- mouse pointer disappears after switch to console or resuming from sleep https://launchpad.net/bugs/67196 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
