Switching modes on Dell DA310 may fail: "*ERROR* AUX USBC3/DDI TC3/PHY TC3: did not complete or timeout within 10ms (status 0xac20023f)"
Kernel: drm-tip
VGA: 0000:00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:a721] (rev 04) (prog-if 00 [VGA controller])
Steps to reproduce the issue:
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Plug an external monitor via DP/HDMI port to Dell DA310
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Switch mode between internal/external/mirror and keep going.
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Observe no image on external monitor.
*ERROR* AUX USBC3/DDI TC3/PHY TC3: did not complete or timeout within 10ms (status 0xac20023f)
can be found in dmesg, andi915_display_info
now shows[CONNECTOR:254:DP-1]: status: disconnected
. -
Once the issue happens, the same issue persists across warm boot and cold boot. The only way to fix it is to replug the Dell DA310.