You must be using userspace mode-setting (UMS), right? The UMS mode- setting code for Radeon HD5xxx series chips currently doesn't work well for digital outputs.
Unfortunately kernel modesetting (KMS) for Radeon HD5xxx series chips was only introduced upstream in kernel 2.6.34. -- No HDMI output with RV870/HD5770 https://bugs.launchpad.net/bugs/580968 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
