** Package changed: ubuntu => linux (Ubuntu) -- 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/1960579
Title: PL2303 Driver Bug in 5.13 Kernel Status in linux package in Ubuntu: New Bug description: Looks like 5.13.0 kernel broke something in the USB-serial PL2303 driver module. I have a Sky-Watcher EQ6-R Pro telescope mount with a PL23D3 USB-serial chip (I think). My MSECORE mini PC running Ubuntu 20.04.3 has been working with this mount for the last couple of years with the 5.11 kernel. Now with the 5.13 kernel, the pl2303 module doesn't recognize the USB-serial device. I revert back to the 5.11 kernel and it works fine again. Here's the snippets from dmesg: 5.13.0-28-generic kernel: [ 2.894277] usbcore: registered new interface driver usbserial_generic [ 2.894292] usbserial: USB Serial support registered for generic [ 2.907539] usbcore: registered new interface driver pl2303 [ 2.907574] usbserial: USB Serial support registered for pl2303 [ 2.907596] pl2303 1-6:1.0: pl2303 converter detected [ 2.907602] pl2303 1-6:1.0: unknown device type, please report to linux-...@vger.kernel.org 5.11.0-27-generic kernel [ 3.201216] usbcore: registered new interface driver pl2303 [ 3.201228] usbserial: USB Serial support registered for pl2303 [ 3.201243] pl2303 1-5:1.0: pl2303 converter detected [ 3.201349] usb 1-5: pl2303 converter now attached to ttyUSB1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1960579/+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
