Alex Deucher wrote:
On Sun, Nov 4, 2012 at 4:00 PM, Andy Furniss <andy...@ukfsn.org> wrote:
Alex Deucher wrote:
On Sun, Nov 4, 2012 at 10:27 AM, Andy Furniss <andy...@ukfsn.org> wrote:
For the last 2 years when running a DVI 60Hz monitor with a radeon HD4890
and a (native 50Hz) HDMI TV I've been able to boot/startx with the TV off
and then turn TV on and -
xrandr --output DVI-0 --auto
to bring up the the TV and get a clone of monitor.
This still works with drm-core-next but not with drm-fixes (todays or
from a
few days ago).
With df I now loose the monitor with signal out of range when doing
above,
the TV output is OK. To get the monitor back I need to turn off TV, then
off/auto the monitor.
xrandr --output DVI-0 --off
xrandr --output DVI-1 --off
xrandr --output DVI-1 --auto
The output from xrandr while the monitor is showing signal out of range
looks normal.
If I boot with the TV on it works OK.
Can you bisect?
29dbe3bcd2e28e71823febdca989d63d5c27d152 is the first bad commit
commit 29dbe3bcd2e28e71823febdca989d63d5c27d152
Author: Alex Deucher <alexander.deuc...@amd.com>
Date: Fri Oct 5 10:22:02 2012 -0400
drm/radeon: allocate PPLLs from low to high
The order shouldn't matter, but there have been problems
reported on certain older asics. This behaves more
like the original code before the PPLL allocation
rework.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Cc: Markus Trippelsdorf <mar...@trippelsdorf.de>
That's bizarre. That patch reverts the behavior back to the 3.6 and
earlier kernel behavior. I guess it's some issue with the ordering of
the modesetting programming sequence. I've attached a couple of
things to try.
The first patch is a simple fix. It just reverts back to the previous
pll allocation order for discrete cards like yours:
0001-drm-radeon-dce3-switch-back-to-old-pll-allocation-or.patch
The second set of patches implements a more complex fix which may help
regardless of the order in which plls are allocated:
0001-drm-radeon-split-out-the-pll-disable-into-a-helper-f.patch
0002-drm-radeon-add-a-helper-to-check-if-a-pll-is-shared.patch
0003-drm-radeon-disable-the-pll-before-a-modeset.patch
Can you see if the second set helps? If not, please try the first patch.
The second set doesn't fix it.
The first patch does.
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