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drm/i915/tv: Only poll for TV connections 

As a probe for a TV connection modifies the TV_CTL register, it causes a
loss of sync and a regular glitch on the output. This is highly
undesirable when using the TV, so only poll for TV connections and wait
for an explicit query for detecting the disconnection event.

Reported-by: Mathew McKernan <matmckernan@rauland.com.au>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35977
Signed-off-by: Mathew McKernan <matmckernan@rauland.com.au>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Mathew McKernan 2011-04-12 06:51:38 +01:00 committed by Keith Packard
parent d5627663f2
commit 89ea42d716
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/i915/intel_tv.c
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@ -1672,8 +1672,7 @@ intel_tv_init(struct drm_device *dev)
*
* More recent chipsets favour HDMI rather than integrated S-Video.
*/
connector->polled =
DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
drm_connector_init(dev, connector, &intel_tv_connector_funcs,
DRM_MODE_CONNECTOR_SVIDEO);