I can't seem to get the native resolution to display properly on my external display. The native is 1920x1200 @60 but using xrandr it defaults to 1680x1050 @ 59 and manually setting it to native causes it to go black. $ xrandr Screen 0: minimum 320 x 200, current 3360 x 1050, maximum 3600 x 1200 VGA_1 disconnected PANEL connected 1680x1050+0+0 444mm x 277mm 1680x1050 59.9*+ DVI-D_1 connected 1680x1050+1680+0 519mm x 324mm 1920x1200 60.0 + 1600x1200 59.9 1680x1050 59.9* 1600x1000 59.9 1280x1024 84.9 75.0 59.9 1280x960 59.9 1152x864 75.0 1152x720 59.9 1024x768 75.1 60.0 832x624 74.6 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 Manually setting it to the native causes the display to go black. $ xrandr --output DVI-D_1 --mode 1920x1200 Some details about my hardware: - Laptop (HP 8510p with ATI 2600HD) - External 24" LCD (HP LP2465) connected on docking station DVI The following info from my Xorg.0.log seems highly suspicious: (II) RADEONHD(0): Not using mode "1920x1200" (mode clock too high) and then later on down in the log (II) RADEONHD(0): Not using default mode "1920x1200" (bad mode clock/interlace/doublescan) See attachments for Xorg.0.log and Xorg.conf. Any help appreciated. Leif.