If I try to use an external flat panel on my HP 2540p in digital mode, it does not work. This is with a Display Port to DVI adapter cable, to a ChiMei flat panel (1620x1050 IIRC). The flat panel can be driven fine from the BIOS, by the appropriate Fn screen press, so I know the hardware is working correctly. The flat panel also works correctly in VGA mode; I can plug in, it is recognized, and works correctly as far as I can tell. The xorg driver was updated to: 2:2.12.902+git20101018.a1c54f69-0ubuntu0sarvatt xrandr never reports the external display at all. Since the driver has been updated, it does report DP1 as a possible output. This is the same machine as in bug #29821. FWIW: o this machine also hangs on suspend something like half the time, o Powering up the panel takes about 1 second from pressing a key, which is long. o After resume, playing flash video in full screen mode may run very slowly (of order 1fps).
Now working for me in kernel.org 2.6.37-rc5. HDMI is also working for me. Still having intermittent problems when booting with the eDP panel turning on, and therefore can't really test suspend/resume either. But this particular bug is fixed as far as I'm concerned. So I'm closing as fixed.
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