It turns out that this actually regressed some qualcomm modems because
modem-manager started to use some special netlink sockets that were not
enabled in the 5.4 kernel.
To have that we need (see LP: #1998194):
CONFIG_QRTR=m
CONFIG_QRTR_SMD=m
CONFIG_QRTR_TUN=m
CONFIG_QRTR_MHI=m
in the 5.4
Fibocom L860-GL-16(8086:7560) could cause the ACPI reporting huge
interrupts when modemmanager(1.16.6-2~20.04.1) was started at ThinkPad
X1 Carbon and X13 Yoga. After upgrade to 1.18.6 from proposed channel,
this issue is gone, although this type modem was not supported yet.
** Tags removed:
Added the block-proposed-focal tag until we have clarity on how to
proceed with the missing auto-unlocking functionality.
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Hello Sebastien, or anyone else affected,
Accepted libmbim into focal-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/libmbim/1.26.2-1~ubuntu20.04.1 in a
few hours, and then in the -proposed repository.
Please help us by testing this new package.
So this is a bit of a pickle this SRU. Basically we need to decide on
one of the two worlds: staying compliant with what the manufacturers
demand (not performing the FCC unlock by default) and not breaking users
(as previously modemmanager was automatically performing the unlock). We
would
** Tags added: oem-priority
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https://bugs.launchpad.net/bugs/1965901
Title:
SRU the new 1.18 serie to focal for hwe
Status in libmbim package in
Putting a bit more thought into this, I'm a bit concerned by regressing
user. The plus side, as per our face-to-face discussion, there are not
many modem users, but still... maybe I'd like to investigate some
possibilities.
Reading up on the modemmanager page gave me some necessary context here.
Hi seb128,
Currently we met issue for Fibocom L860-GL-16(8086:7560) could cause the
ACPI reporting huge interrupts when modemmanager(1.16.6-2~20.04.1) was
started. After upgrade to 1.18.6 from https://launchpad.net/~ubuntu-
desktop/+archive/ubuntu/transitions/ , this issue is gone, although this
** Description changed:
[Impact]
We want to update to the newer serie for better hardware support
+ (support for Quectel EM120R-GL and EM160R-GL)
[Test Plan]
- * install modemmanager, libmbim, and libqmi from -proposed
- * reboot and try WWAN function to see if any regression
** Description changed:
[Impact]
We want to update to the newer serie for better hardware support
[Test Plan]
+
+ * install modemmanager, libmbim, and libqmi from -proposed
+ * reboot and try WWAN function to see if any regression there.
+ * perform general dogfooding of its
** Description changed:
[Impact]
We want to update to the newer serie for better hardware support
[Test Plan]
-
[Where problems could occur]
-
+ The new version no longer automatically performs the FCC unlock
+ procedure by default, see details on
+
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