Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: linux (Ubuntu Impish)
Status: Fix Committed => Won't Fix
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Hello,
thanks for the bug report,
I have built some test kernels with this patch:
https://people.canonical.com/~phlin/kernel/lp-1967493-pl2303/
Can you give them a try? Thank you.
The kernel version for F-5.13 should be:
5.13.0-47-generic #52~20.04.1+lp1967493
Thanks.
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** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Kinetic)
Importance: Undecided
Status: Incomplete
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A patch for this has been merged into Linus's tree and it has been back
ported to the LTS kernels.
https://github.com/torvalds/linux/commit/e82e7c6dde91acd6748d672a44dc1980ce239f86
Please can this patch be included into the Ubuntu kernels.
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** Package changed: linux-signed-hwe-5.13 (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1967493
Title:
pl2303 serial adapter not recognized
To manage notifications about
> If the issue still exist, please report this issue to linux-
u...@vger.kernel.org, indicating the kernel version and attach the lsusb
-v output for this device.
Done: https://lore.kernel.org/linux-
usb/cajixrzqf4a9-zkzdgwxicc_bpfdzve9qqgmkio7xestoxub...@mail.gmail.com/T/#u
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Hi,
thanks for testing this out,
from the attachment it looks like your pl2303 does not work with the new device
detection algorithm in 5.13 kernel:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-impish.git/tree/drivers/usb/serial/pl2303.c#n421
Which can only handle devices with bcdUSB 1.10 and 2.00
Hi @cypressyew. Sorry to take so long to get back to you.
> Maybe your PL2303 is using another chip,
> can you please upload the dmesg output with this device attached?
> Also the output of the following command with it connected:
>
> lsusb -v
I've attached a file with the output.
> And in case
Hello,
Maybe your PL2303 is using another chip,
can you please upload the dmesg output with this device attached?
Also the output of the following command with it connected:
lsusb -v
And in case you're using a PL2303GS chip, here is a test kernel:
https://people.canonical.com/~phlin/kernel/pl2303
