I updated my kernel to 4.11.0 and my laptop is now very slow and laggy. I'm not sure if the graphics driver are directly causing the slowdown or it's just systemd having trouble keeping up with the debug messages though (systemd is consuming 4% of cpu just dealing with messages which is impressively inefficient in its own right). My boot arguments enable debug messages but in previous kernels this resulted in only a few occasional messages, not a constant stream: BOOT_IMAGE=/vmlinuz-4.11.0-2-amd64 root=/dev/mapper/pixel-root ro quiet drm.debug=0xe log_buf_len=1M libata.force=1.5G,noncq I'm now seeing a stream of messages that look like this: Jul 30 13:17:17 pixel kernel: [ 3221.841265] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.843773] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.843787] [drm:drm_dp_dpcd_access [drm_kms_helper]] Too many retries, giving up. First error: -110 Jul 30 13:17:17 pixel kernel: [ 3221.846400] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.848905] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.851411] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.853902] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.856389] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.858864] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.861343] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.863816] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.866289] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.868765] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.871239] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.873714] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.876186] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.880442] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.882931] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.885489] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.887999] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.890487] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.893057] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.895531] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.898063] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.900542] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.903015] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.905550] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.908031] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.914711] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.917199] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.919698] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.922183] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.924766] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.927282] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.929777] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.929790] [drm:drm_dp_dpcd_access [drm_kms_helper]] Too many retries, giving up. First error: -110 Jul 30 13:17:17 pixel kernel: [ 3221.929812] [drm:i915_hotplug_work_func [i915]] running encoder hotplug functions Jul 30 13:17:17 pixel kernel: [ 3221.929831] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-1 (pin 7) received hotplug event. Jul 30 13:17:17 pixel kernel: [ 3221.929850] [drm:intel_hdmi_detect [i915]] [CONNECTOR:57:HDMI-A-1] Jul 30 13:17:17 pixel kernel: [ 3221.935918] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.935936] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.935964] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on port D - short Jul 30 13:17:17 pixel kernel: [ 3221.937926] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.937957] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.938488] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.939937] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.939959] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.940993] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.941957] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.941979] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.943491] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.943959] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.943981] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.945969] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.945990] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.946026] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.947988] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.948014] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.948550] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.950631] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.950657] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.951042] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.952624] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.952647] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.953532] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.954638] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.954660] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.956015] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.956648] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.956670] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.958517] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.958662] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.958694] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.960679] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.960712] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.961007] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.962684] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.962705] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.963507] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.964770] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.964840] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.966035] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.968540] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.970758] [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00800000, dig 0x00111010, pins 0x00000080 Jul 30 13:17:17 pixel kernel: [ 3221.970784] [drm:intel_hpd_irq_handler [i915]] digital hpd port D - short Jul 30 13:17:17 pixel kernel: [ 3221.971026] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.973522] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.973978] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode HDMI ID: DP-HDMI ADAPTOR\004 (err 0) Jul 30 13:17:17 pixel kernel: [ 3221.976005] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.977981] [drm:drm_dp_dual_mode_detect [drm_kms_helper]] DP dual mode adaptor ID: 44 (err 0) Jul 30 13:17:17 pixel kernel: [ 3221.978007] [drm:intel_hdmi_set_edid [i915]] DP dual mode adaptor (type 1 HDMI) detected (max TMDS clock: 165000 kHz) Jul 30 13:17:17 pixel kernel: [ 3221.978032] [drm:i915_hotplug_work_func [i915]] Connector DP-1 (pin 7) received hotplug event. Jul 30 13:17:17 pixel kernel: [ 3221.978055] [drm:intel_dp_detect [i915]] [CONNECTOR:60:DP-1] Jul 30 13:17:17 pixel kernel: [ 3221.978500] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.980989] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.983468] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.985948] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f Jul 30 13:17:17 pixel kernel: [ 3221.988432] [drm:intel_dp_aux_ch [i915]] dp_aux_ch timeout status 0x7145003f -- greg _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
