Hello David, or anyone else affected,
Accepted linux-firmware into xenial-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/linux-
firmware/1.157.8 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.
If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed. In either case, details of your testing will help
us make a better decision.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
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intel 8260 doesn't work with linux kernel 4.8 when using ucode version
Status in linux-firmware package in Ubuntu:
Status in linux-firmware source package in Xenial:
Status in linux-firmware source package in Yakkety:
Status in linux-firmware source package in Zesty:
Impact: The -22 firmware for iwlwifi introduces regressions with some
hardware versus earlier firmware versions. As no newer firmware is
available, the only fix is to revert back to the older firmware which
Test Case: Using the -22 firmware with affected hardware produces the
behavior described below. The -21 firmware does not.
Regression Potential: Switching back to -21 could cause some
regressions with other hardware supported by this firmware. However as
-22 causes some hardware to completely fail to work any regressions
are almost certain to be less severe than the current problems.
The -22 microcode for the intel 8260 wifi adapter has compatibility
issues with Linux Kernel 4.8 under certain hardware configurations.
The iwlwifi module crashes resulting in wifi failing with "device not
ready" and kernel errors reported in dmesg.
[ 10.691115] iwlwifi 0000:6e:00.0: Microcode SW error detected.
Renaming the ucode file at /lib/firmware/iwlwifi-8000C-22.ucode to
fallback to the -21 ucode resolves the issue and wifi begins working
This is an issue with Linux kernel 4.8 on both yakkety and xenial, so
the bug doesn't currently affect users on xenial, but will begin to
after the 16.04.2 HWE release. Kernel 4.4 is unaffected because it
doesn't attempt to use the -22 ucode
The failure doesn't necessarily affect all machines of a given model
with the 8260, but I can reproduce it on multiple laptops when 64GB of
RAM are installed (4x16GB). The RAM itself does not appear to be an
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