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Message #136327
[Bug 1497675] Re: [15.10 Regression] LightDM unity-greeter login sound has noisy distortion after 15.10 Wily upgrade
Sb, the next step is to fully commit bisect from kernel 3.19 to 4.2 in
order to identify the last good kernel commit, followed immediately by
the first bad one. This will allow for a more expedited analysis of the
root cause of your issue. Could you please do this following
https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions is not fully commit
bisecting.
Thank you for your understanding.
Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs
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https://bugs.launchpad.net/bugs/1497675
Title:
[15.10 Regression] LightDM unity-greeter login sound has noisy
distortion after 15.10 Wily upgrade
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi, I just upgraded from Ubuntu 15.04 to 15.10 beta. Now when the LightDM unity-greeter screen appears, it produces a loud distortion noise where the Ubuntu drums should sound. It was working fine in 15.04 and all prior versions. Apart from this sound works fine after logging into Ubuntu.
---
ApportVersion: 2.18.1-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.10
InstallationDate: Installed on 2015-07-26 (56 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release i386 (20150422)
Package: unity-greeter 15.10.1-0ubuntu1
PackageArchitecture: i386
ProcVersionSignature: Ubuntu 4.2.0-10.12-generic 4.2.0
Tags: wily
Uname: Linux 4.2.0-10-generic i686
UpgradeStatus: Upgraded to wily on 2015-09-20 (1 days ago)
UserGroups: adm lpadmin sambashare sudo
_MarkForUpload: True
---
ApportVersion: 2.18.1-0ubuntu1
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: miriam 1808 F.... pulseaudio
/dev/snd/controlC1: miriam 1808 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.10
HibernationDevice: RESUME=UUID=cc55c385-01f9-45f4-b217-66627c7455be
InstallationDate: Installed on 2015-07-26 (56 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release i386 (20150422)
MachineType: LENOVO 20AR006RUS
Package: unity-greeter 15.10.1-0ubuntu1
PackageArchitecture: i386
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-10-generic root=UUID=6e3af67c-126e-4f64-8004-8e87ef62201c ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.2.0-10.12-generic 4.2.0
RelatedPackageVersions:
linux-restricted-modules-4.2.0-10-generic N/A
linux-backports-modules-4.2.0-10-generic N/A
linux-firmware 1.148
Tags: wily wily
UdevLog: Error: [Errno 2] No existe el archivo o el directorio: '/var/log/udev'
Uname: Linux 4.2.0-10-generic i686
UpgradeStatus: Upgraded to wily on 2015-09-20 (1 days ago)
UserGroups: adm lpadmin sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/22/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: GJET84WW (2.34 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20AR006RUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 PRO
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGJET84WW(2.34):bd06/22/2015:svnLENOVO:pn20AR006RUS:pvrThinkPadT440s:rvnLENOVO:rn20AR006RUS:rvrSDK0E50510PRO:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20AR006RUS
dmi.product.version: ThinkPad T440s
dmi.sys.vendor: LENOVO
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