[Bug 45291] No video output via DisplayPort on Mobility HD 4670.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45291

--- Comment #4 from Glen Ogilvie <nelg at linuxsolutions.co.nz> ---
Also occurs on a Dell Studio 1747 with an Mobility Radoen HD 4650.

Anything I can do to help?   No errors in the logs.  Monitor is detected,
correct resolutions found.  I can tell it to extend the desktop it.. but no
output on the monitor.. it stays sleeping.

Works OK on the ATI legacy driver.. but I want to upgrade from a 4 year old
distro.

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