Additional HW combination 16:9 that shows the same bug :
Dell Latitude E6620, Native: 16:9 1366*768 (Sandybridge Mobile (GT2+))
via HDMI
Dell 27'' U2710 Res: 1920x1080 (16:9)
Same bug: Instead of using native laptop resolution and scaling extern monitor up to 1920x1080
both displays use the mutilated resolution 1024x768 that is the first resolution supported by both.
Bug is still in oneiric.
Additional HW combination 16:9 that shows the same bug :
Dell Latitude E6620, Native: 16:9 1366*768 (Sandybridge Mobile (GT2+))
via HDMI
Dell 27'' U2710 Res: 1920x1080 (16:9)
Same bug: Instead of using native laptop resolution and scaling extern monitor up to 1920x1080
both displays use the mutilated resolution 1024x768 that is the first resolution supported by both.