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/1.157.6 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/1645911 Title: linux-firmware 1.157.5 causes sound issues after initramfs update Status in linux package in Ubuntu: Fix Released Status in linux-firmware package in Ubuntu: Invalid Status in linux source package in Xenial: Confirmed Status in linux-firmware source package in Xenial: Fix Committed Bug description: On laptops with Kaby Lake processors and Sunrise point chipsets (System76 Lemu7), updating to the current (1.157.5) version of the linux-firmware package and then updating initramfs causes sound issues. This can manifest in two ways: 1: Volume hotkeys and controls appear to work, but actual playback volume remains the same. Three HDMI devices appear in the sound-settings gui, despite no HDMI device connected (and only 1 HDMI port) 2: 'Dummy Output' is the only device in the sound-settings gui, and there is no sound output at all. In both cases dmesg shows error output relating to snd_hda_codec_hdmi. This bug only affects Xenial, not Yakkety. Xenial still exhibits the above symptoms after installing the current Yakkety linux-firmware package. I believe the issue is related to the Kaby Lake firmware. In testing, I was able to remove '/lib/firmware/i915/kbl_dmc_ver1_01.bin', run 'sudo update-initramfs -u', and reboot to get sound working correctly again. Perhaps this firmware is needed for the upcoming Union Point chipsets, but causes problems with the for Kaby Lake processor laptops running the 4.4.0 kernel and Sunrise Point chipsets. There is either a bug in the new Kaby Lake firmware or it is being erroneously applied to inappropriate hardware. I have received a number of reports of users running into this bug, presumably anyone who updated to the latest kernel and linux-firmware packages at the same time. Based on testing, next kernel update could trigger the bug for many more users. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1645911/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
