read-edid and ddcprobe results:
$ sudo get-edid get-edid: get-edid version 1.4.1 Performing real mode VBE call Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0 Function supported Call successful VBE version 200 VBE string at 0x11110 "ATI RADEON XPRESS 200M Series" VBE/DDC service about to be called Report DDC capabilities Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0 Function supported Call successful Monitor and video card combination does not support DDC1 transfers Monitor and video card combination does not support DDC2 transfers 0 seconds per 128 byte EDID block transfer Screen is not blanked during DDC transfer Reading next EDID block VBE/DDC service about to be called Read EDID Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0 Function supported Call failed The EDID data should not be trusted as the VBE call failed EDID claims 19 more blocks left EDID blocks left is wrong. Your EDID is probably invalid. �N ddcprobe $ sudo ddcprobe vbe: VESA 2.0 detected. oem: ATI RADEON XPRESS 200M Series memory: 16384kb mode: 320x200x32k mode: 320x200x64k mode: 320x200x16m mode: 1600x1200x256 mode: 640x400x256 mode: 640x480x256 mode: 640x480x32k mode: 640x480x64k mode: 640x480x16m mode: 1600x1200x32k mode: 800x600x256 mode: 800x600x32k mode: 800x600x64k mode: 800x600x16m mode: 1600x1200x64k mode: 1024x768x256 mode: 1024x768x32k mode: 1024x768x64k mode: 1024x768x16m mode: 1280x1024x256 mode: 1280x1024x32k mode: 1280x1024x64k mode: 1280x1024x16m edid: � edidfail -- [Radeon 200m (RC410)] Screen resolution issues in Intrepid https://bugs.launchpad.net/bugs/334825 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