Nando, in addition to providing the test results from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775230/comments/4 :
1) As per TP-Link there are three versions of this device https://www .tp-link.com/us/download/TL-WN722N.html. Which version do you have? 2) As per the sticker of the computer itself (not from the result of a terminal command), could you please provide the full computer model? 3) Is this something that started to happen after an update? if so, which and when precisely? 4) If you boot into a live environment (not text only) from http://cdimage.ubuntu.com/daily-live/current/ could you please provide debugging information by running the following in a terminal: apport-collect 1775230 ** No longer affects: network-manager (Ubuntu) ** Tags removed: tp-link usb wireless ** Tags added: needs-upstream-testing ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1775230 Title: TP-LINK TL-WN722N causes 100% CPU usage due to trace logging Status in linux package in Ubuntu: Incomplete Bug description: Hello. Running Ubuntu 18.04 (4.15.0-22-generic), after plugging my TP-LINK TL-WN722N into the USB port, the CPU usage goes to 100%, and there are multiple reports of "stack traces" in dmesg. The attached snippet repeats multiple consecutive times in the dmesg output (albeit with a different trace id). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775230/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
