Can you test some of the newer release candidates[0] from rc3 up to rc8 to identify the exact rc where the regression was introduced? Once we know the last good and first bad kernels, we can bisect to find the commit that introduced the regression.
[0] kernel.ubuntu.com/~kernel-ppa/mainline/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1325884 Title: [Asus X550LD] Microphone not working Ubuntu 14.04 Status in “linux” package in Ubuntu: Confirmed Bug description: Want to record with audacity but there is no voice input. With the rc2 upstream-kernel the microphone was working as it should; in the rc8 again no voice. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-27-generic 3.13.0-27.50 ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11 Uname: Linux 3.13.0-27-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jibba 1820 F.... pulseaudio /dev/snd/controlC1: jibba 1820 F.... pulseaudio CurrentDesktop: Unity Date: Tue Jun 3 11:21:21 2014 HibernationDevice: RESUME=UUID=8565074e-439a-43bc-942f-c601146e3278 InstallationDate: Installed on 2014-05-15 (18 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: ASUSTeK COMPUTER INC. X550LD ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic.efi.signed root=UUID=8485f9a5-8383-4eb2-8965-b2b55dc40c51 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-27-generic N/A linux-backports-modules-3.13.0-27-generic N/A linux-firmware 1.127.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/17/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X550LD.300 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X550LD dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550LD.300:bd01/17/2014:svnASUSTeKCOMPUTERINC.:pnX550LD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X550LD dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1325884/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
