<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [ivb cpu edp] clock recovery fails with too many full/voltage retries, channel equalization succeeds" href="https://bugs.freedesktop.org/show_bug.cgi?id=70117#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [ivb cpu edp] clock recovery fails with too many full/voltage retries, channel equalization succeeds" href="https://bugs.freedesktop.org/show_bug.cgi?id=70117">bug 70117</a> from <a class="email" href="mailto:leho@kraav.com" title="Leho Kraav (:macmaN :lkraav) <leho@kraav.com>"> Leho Kraav (:macmaN :lkraav)</a> <pre>After about 9 days of uptime, DELL E7440 doesn't want to recognize displays connected to the dock anymore. Kernel 3.18.7 vanilla. veebr 25 21:51:30 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:30 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:30 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:30 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:30 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:31 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:31 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:32 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:32 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:32 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:32 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:32 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:33 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:34 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:34 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:34 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:34 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:34 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:35 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:35 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:35 papaya kernel: [drm:intel_dp_set_idle_link_train] *ERROR* Timed out waiting for DP idle patterns veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:35 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:36 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:36 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:37 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:37 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:37 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:37 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:37 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:38 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:39 papaya kernel: [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up veebr 25 21:51:39 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:39 papaya kernel: [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting veebr 25 21:51:39 papaya kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. veebr 25 21:51:39 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:39 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:39 papaya kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt veebr 25 21:51:39 papaya kernel: [drm:intel_dp_set_idle_link_train] *ERROR* Timed out waiting for DP idle patterns</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>