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 advance! -- 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/1647826 Title: intel 8260 doesn't work with linux kernel 4.8 when using ucode version 22 Status in linux-firmware package in Ubuntu: Fix Committed Status in linux-firmware source package in Xenial: Fix Committed Status in linux-firmware source package in Yakkety: Fix Released Status in linux-firmware source package in Zesty: Fix Committed Bug description: SRU Justification 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 does work. 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. Restarting 0x2000000. Renaming the ucode file at /lib/firmware/iwlwifi-8000C-22.ucode to fallback to the -21 ucode resolves the issue and wifi begins working normally again. 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 issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1647826/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp