This patch does the following:
- Fakes live status of HDMI as connected (even if that's not).
While testing certain (monitor + cable) combinations with
various intel platforms, it seems that live status register
doesn't work reliably on some older devices. So limit the
live_status check for HDMI detection, only for platforms
from gen7 onwards.
This fixes regression added by patch:
'commit 237ed86c693d ("drm/i915: Check live status before reading edid")'
Based on suggestion by: Ville Syrjala<ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_hdmi.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index b199ede..1890f6e 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1412,8 +1412,10 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
hdmi_to_dig_port(intel_hdmi));
}
- if (!live_status)
- DRM_DEBUG_KMS("Live status not up!");
+ if (!live_status) {
+ DRM_DEBUG_KMS("Warning: live status not up, faking it\n");
+ live_status = true;
+ }
intel_hdmi_unset_edid(connector);
--
1.9.1
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