Public bug reported:
We were not able to completely pin-point the issue yet, so this is more
of a blanket bug for the current issues we are seeing. We don't know
where exactly the issue can be located.
While preparing and testing 18.04.4, certification reported issues with
our uc18 images on the pi4 with wifi ac tests. One of our engineers
(Brian) confirmed it locally with a wifi access point restricted only to
802.11ac. After some additional testing, he noticed that he had the same
unreliable symptoms for both the classic and core images, as well as the
19.10.1 classic images. The symptoms seem to vary, from inability to
detect 802.11ac APs, unability to connect and/or receive an IP address
and no traffic getting through.
We will provide all the information that we have. Raspbian, after some
initial testing, seems to work better in this regard (though we saw
various reports of it still being a bit flaky). We have tried pulling in
the wifi firmware bits from Raspbian and using those, but the issues
were still the same.
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-firmware-raspi2 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-raspi2-5.3 (Ubuntu)
Importance: High
Status: New
** Affects: linux-firmware (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-firmware-raspi2 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-raspi2-5.3 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-firmware (Ubuntu Eoan)
Importance: Undecided
Status: New
** Affects: linux-firmware-raspi2 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Affects: linux-raspi2-5.3 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: linux-raspi2-5.3 (Ubuntu)
Status: Confirmed => New
** Also affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-firmware-raspi2 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-firmware (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-firmware-raspi2 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-raspi2-5.3 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-firmware (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux-firmware-raspi2 (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux-raspi2-5.3 (Ubuntu Eoan)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/1862760
Title:
Unreliable 802.11ac connection on our raspi images
Status in linux-firmware package in Ubuntu:
New
Status in linux-firmware-raspi2 package in Ubuntu:
New
Status in linux-raspi2-5.3 package in Ubuntu:
New
Status in linux-firmware source package in Bionic:
New
Status in linux-firmware-raspi2 source package in Bionic:
New
Status in linux-raspi2-5.3 source package in Bionic:
New
Status in linux-firmware source package in Eoan:
New
Status in linux-firmware-raspi2 source package in Eoan:
New
Status in linux-raspi2-5.3 source package in Eoan:
New
Bug description:
We were not able to completely pin-point the issue yet, so this is
more of a blanket bug for the current issues we are seeing. We don't
know where exactly the issue can be located.
While preparing and testing 18.04.4, certification reported issues
with our uc18 images on the pi4 with wifi ac tests. One of our
engineers (Brian) confirmed it locally with a wifi access point
restricted only to 802.11ac. After some additional testing, he noticed
that he had the same unreliable symptoms for both the classic and core
images, as well as the 19.10.1 classic images. The symptoms seem to
vary, from inability to detect 802.11ac APs, unability to connect
and/or receive an IP address and no traffic getting through.
We will provide all the information that we have. Raspbian, after some
initial testing, seems to work better in this regard (though we saw
various reports of it still being a bit flaky). We have tried pulling
in the wifi firmware bits from Raspbian and using those, but the
issues were still the same.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1862760/+subscriptions
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