Public bug reported: The radeon graphics card driver assumes any pixel clock speed over 165000 should be using Dual-Link DVI, although the speeds are possible over HDMI as of HDMI 1.3.
The fix, as well as a link to a more detailed bug report, can be found here: https://github.com/torvalds/linux/commit/d03874c881a049a50e12f285077ab1f9fc2686e1 ** Affects: linux (Ubuntu) Importance: Medium Status: Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1295032 Title: 3840x2160 fails with 30Hz with HDMI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1295032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
