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SubjectRe: Regression: DisplayPort stops working between 2.6.37-rc1 and rc2
On środa, 17 listopada 2010 o 17:45:54 Kjell Rune Skaaraas wrote:
> I couldn't find a smaller list for graphics, so here goes. Between
> 2.6.37-rc1 and 2.6.37-rc2 my DisplayPort monitor has stopped working. I
> can reboot between the kernel versions and reproduce this, so it's not due
> to any other package upgrade. If I go into the system settings I now only
> have three ports listed, DisplayPort-0 is missing.
> This is on a Radeon HD5850 using the open source radeon drivers. Kernels
> are Ubuntu kernel PPA mainline builds, all the X11 packages follow the
> xorg-edgers PPA and are close to git. Going from the rc2 change log these
> would be suspects:
> Alex Deucher (5):
> drm/radeon/kms/evergreen: add missing pm.vblank_sync update in vbl
> handler drm/radeon/kms: make the connector code less verbose
> drm/radeon/kms: don't disable shared encoders on pre-DCE3 display
> blocks drm/radeon/kms: add support for clock/data path routers
> drm/radeon/kms: fix thermal sensor reporting on rv6xx
> Michel Dänzer (1):
> drm/radeon/kms: Fix retrying ttm_bo_init() after it failed once.
> Tyson Whitehead (1):
> drm/radeon/kms: fix bugs in ddc and cd path router code
> I'm not all that great with git so haven't worked out how to pin down what
> commit is actually causing it.

I created a Bugzilla entry at
for your bug report, please add your address to the CC list in there, thanks!

Maciej Rutecki
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