Bug#1005084: linux-image-5.10.0-10-amd64: USB-c screen flickers
Package: src:linux
Version: 5.10.84-1
Severity: normal
X-Debbugs-Cc: antoni@friki.cat
Dear Maintainer,
I've noticed periodic screen flickering when using adb software.
My usb-c screen is connected directly to the main board (Intel NUC). An other
screen (not affected) is connected using DisplayPort.
After a quick strace it shows up that this syscall turns my usb-c screen black
for around one second:
openat(AT_FDCWD, "/dev/bus/usb/004/001", O_RDONLY|O_CLOEXEC);
A small C program can reproduce the issue.
This kernel message is logged:
usb usb4: root hub lost power or was reset
More users have noticed similar problems before:
https://www.reddit.com/r/androiddev/comments/hvwn1p/adb_causing_external_monitor_to_flicker/
Please note that root is not needed to reproduce the problem.
Best regards,
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