Okay, direct rendering works, so toying with the DRI option is meaningless. I tried to uncomment the EXA acceleration method and it works correctly! So the cause of the freeze was probably the MergedFB option. Anyway, now it works for me so I think the bug is fixed.
-- [RS485] second monitor resolution cannot be changed https://bugs.launchpad.net/bugs/255875 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
