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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Screen flickering after getting hpd irq"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105267#c20">Comment # 20</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Screen flickering after getting hpd irq"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105267">bug 105267</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>Please try this patch to debug. Is the issue reproducible with this? Either
way, please attach dmesg running this, with drm.debug=14 module parameter set.
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62f82c4298ac..78ee270fefc3 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1806,7 +1806,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
* configuration, and typically these values correspond to the
* native resolution of the panel.
*/
- min_lane_count = max_lane_count;
+ min_lane_count = max_lane_count = 2;
min_clock = max_clock;
}</pre>
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