Here is some more information. I checked the values below with values of both 0 and 1 for "radeon.new_pll" and "radeon.modeset=1":
1920x1080 (16:9): Wavy 1600x1200 (4:3): No Video, monitor displays message "Not Optimum Mode" shows up, as described earlier. 1680x1050 (16:10): No Video 1440x900 (16:10): No Video 1280x1024 (5:4): Wavy 1280x960 (4:3): Wavy 1024x768 (4:3): No Video 800x600 (4:3): No Video 640x480 (4:3) Wavy All of these are at 60hz refresh. I removed the KVM before doing this test. Attached is output from dmsg with debugging enabled ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/664646/+attachment/1706760/+files/dmesg.txt -- system cannot display extended desktop on Samsung 2333sw https://bugs.launchpad.net/bugs/664646 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
