Reported and discussed here too:
https://bugs.launchpad.net/ubuntu/+bug/1848703
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https://bugs.launchpad.net/bugs/1848790
Title:
USB not working under arm64 on Pi4
To manage
Reported/Confirmed/Assigned here:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1848790
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https://bugs.launchpad.net/bugs/1848703
Title:
Raspberry Pi 4 - USB Bus not
More discussion and users with same problem here:
https://www.raspberrypi.org/forums/viewtopic.php?p=1553904#p1553904
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https://bugs.launchpad.net/bugs/1848703
Title:
Raspberry Pi 4 -