Intel dp link training channel equalization error

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Upon login, an external monitor connected via displayport to the laptop should be detected correctly and the screen size should be set to the correct resolution. Starting up with an external monitor connected over displayport, the login screen is the correct resolution. After logging in, it reverts to the same resolution as the laptop display and dumps a trace in dmesg. Further, after the display sleeps, very often the display port never wakes up and no longer functions without removing the displayport cord, replugging and then re-running xrandr with the correct resolution.

Intel dp link training channel equalization error

Use of freedesktop. How we collect and use information is described in our Privacy Policy. Bugzilla — Bug External display not working - failed to enable link training, failed to start channel equalization Last modified: UTC. Home Browse Search [? Bug - External display not working - failed to enable link training, failed to start channel equalization Summary: External display not working - failed to enable link training, failed to star Comment 3 andreas. Comment 10 andreas. Attachments dmesg of fully initialized system with x running up to Gnome-session

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intel dp link training channel equalization error. SN75DP DisplayPort™ Redriver With Link Training. 1 Features Glueless Interface to AMD, Intel.

drm/i915: Improve reliability for Displayport link training

intel dp link training channel equalization error. After unplugging a DP MST display from the system, we have to go through and destroy.

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Bug - External display not working - failed to enable link training, failed to start channel equalization On DELL LATTITUDE E, kernelrc8 xorg​-server xfvideo-intelr1 Boot hangs when KMS with external display connected (DVI-D/VGA to docking station or VGA with.

Created attachment [details] dmesg guzhkov.ru For one, I had actually plugged in HDMI and NOT DP but was fooled by the [i]] *​ERROR* failed to start channel equalization [ ].

Looking at the system log I see the following errors regarding the DP: failed to enable link training [drm:intel_dp_link_training_clock_recovery [i]] *ERROR* failed to [i]] *ERROR* failed to start channel equalization.

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Flowchart for the channel equalization sequence during link training. 22 from Intel. • No new hardware will be added to the Barco Pulse platform. for these signal distortions, and thereby make error free communication possible. The.

Commit Message

Comments · > In the channel EQ retry loop, we break from the loop in case · > failure to update link training. · > · > · > Cc: Jani Nikula · >.

Your Answer

Upon login, an external monitor connected via displayport to the laptop should be detected [ ] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training *ERROR* failed to start channel equalization.

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  • Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". If no response is received, then a bug may be opened on bugzilla. This report contains Public information Edit Everyone can see this information.