<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL][regression] display corruption since bb0f4aab0e7677e9" href="https://bugs.freedesktop.org/show_bug.cgi?id=101679#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL][regression] display corruption since bb0f4aab0e7677e9" href="https://bugs.freedesktop.org/show_bug.cgi?id=101679">bug 101679</a> from <a class="email" href="mailto:fourdollars@gmail.com" title="Shih-Yuan Lee <fourdollars@gmail.com>"> Shih-Yuan Lee</a> <pre>I compared the good and bad cases by the mainline kernel v4.13. The bad case has some additional hotplug events. I don't know if it is related. [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x01000000, dig 0x11101010, pins 0x00000010 [drm:intel_hpd_irq_handler [i915]] digital hpd port A - short [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port A - short [drm:intel_dp_read_dpcd [i915]] DPCD: 14 00 c4 c1 00 00 01 c0 02 00 00 00 00 0b 00 [drm:i915_hotplug_work_func [i915]] running encoder hotplug functions [drm:i915_hotplug_work_func [i915]] Connector eDP-1 (pin 4) received hotplug event. [drm:intel_dp_detect [i915]] [CONNECTOR:48:eDP-1] [drm:intel_dp_detect [i915]] Display Port TPS3 support: source yes, sink yes [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 270000, 324000, 432000, 540000 [drm:intel_dp_print_rates [i915]] sink rates: 162000, 216000, 243000, 270000, 324000, 432000, 540000 [drm:intel_dp_print_rates [i915]] common rates: 162000, 216000, 270000, 324000, 432000, 540000 [drm:drm_dp_read_desc [drm_kms_helper]] DP sink: OUI 38-ec-11 dev-ID HW-rev 0.0 SW-rev 0.0 quirks 0x0000 [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x01000000, dig 0x11101010, pins 0x00000010 [drm:intel_hpd_irq_handler [i915]] digital hpd port A - short [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port A - short [drm:intel_dp_read_dpcd [i915]] DPCD: 14 00 c4 c1 00 00 01 c0 02 00 00 00 00 0b 00</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>