I have 1GB 4870 card and this driver worked well for me.. I don't use it for HDMI sound so I don't know about that, though I see the ATI card in my sound output list.. I'll attach my working xorg.conf, hope it helps..
** Attachment added: "working xorg.conf for dual-head (1920x1200, 1600x1200) in lucid" http://launchpadlibrarian.net/42890639/xorg.conf -- Does not support current Lucid kernel (2.6.32) or xserver (1.7) https://bugs.launchpad.net/bugs/494699 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