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(cherry picked from commit 62ba7211fe9b6aada125ebfe34cf7161e817ad6b)
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Enable audio output for the integrated HDMI of Intel G45 chipset
by introducing the SDVO_AUDIO_ENABLE bit.
Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
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HDMI is compatible with DVI, and we've seen many boards that
use HDMI port for DVI output.
So Zhenyu proposed this flag: i830_hdmi_priv.has_hdmi_sink
to indicate the presence of HDMI capable monitors.
Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
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Those are identical that using one define is much clear.
And it can also apply fixes for GM45 too, which is missing with
origin define.
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For CRT this trys to probe all possible port for EDID and
detects got confirmed by EDID's d/a type bit.
For HDMI/DVI, also using EDID d/a type bit to ensure it should
handle the connect or not.
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Output 33 is confusing.
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We won't dwell too long on how this ever worked.
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HDMI, despite claiming to have pixel multiply support, actually doesn't
want it, at least in the way that SDVO did. Disable it.
Also disable the NULL_PACKETS_DURING_VSYNC bit. Despite the docs telling us
to set it, the output doesn't like it when you do that, and the BIOS doesn't
set it.
Also add a posting read to SDVOx setting. Without it, half the X starts
wouldn't get anything on the screen. (interestingly, it was every other
startup, not just a chance).
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