When switching to 'vesa' driver, supertux still displayed as a garbled mix of diagonal lines, but there was no hard freeze. Switching back to 'ati' and setting default depth to 16 *seems* to have alleviated the problem, although this is obviously not an optimal solution.
-- system freeze after clicking task manager trash icon in "pan" newsreader https://launchpad.net/bugs/36596 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs