Attachment #135073
Before plugging in the HDMI cable: full dmesg with drm.debug=0x1e log_buf_len=1M text/x-log 2017-10-26 16:52:19 UTC 165.89 KB no flags Details
Attachment #135076
After plugging in the HDMI cable: dmesg with drm.debug=0x1e log_buf_len=1M lines that were added after the previous one. text/x-log 2017-10-26 16:56:02 UTC 5.47 KB no flags Details
Attachment #135088
cat /sys/kernel/debug/dri/0/i915_opregion application/octet-stream 2017-10-26 19:13:23 UTC 8.00 KB no flags Details

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