apport information ** Attachment added: "WifiSyslog.txt" https://bugs.launchpad.net/bugs/1908153/+attachment/5443986/+files/WifiSyslog.txt
-- 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/1908153 Title: [Alienware 15 R4, Realtek ALC3266, Black Headphone Out or internal speakers] Underruns, dropouts or crackling sound Status in linux package in Ubuntu: Confirmed Bug description: With this latest update (Linux 5.4.0-58), the sound is now crackling. Feels like DMA buffer underruns, but I'm not sure. Not seeing a significant CPU load that might have aggravated it, nor am I seeing any complaints in syslog or kern.log. Restarting pulseaudio and running alsa force-reload had no effect. These sound issues started with the same update that caused the ath10k_pci driver to become extremely unreliable (filed as bug 1908106). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ddt 22891 F.... pulseaudio /dev/snd/controlC0: ddt 22891 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Dec 14 14:55:14 2020 InstallationDate: Installed on 2020-03-23 (266 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) PackageArchitecture: all ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Black Headphone Out, Left Symptom_PulseAudioLog: Dec 14 07:32:47 ddtlap dbus-daemon[859]: [system] Activating via systemd: service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service' requested by ':1.32' (uid=124 pid=1157 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined") Dec 14 08:11:14 ddtlap pulseaudio[1157]: Failed to create sink input: sink is suspended. Dec 14 08:12:19 ddtlap pulseaudio[1157]: Failed to create sink input: sink is suspended. Dec 14 08:13:47 ddtlap dbus-daemon[859]: [system] Rejected send message, 0 matched rules; type="method_return", sender=":1.70" (uid=1000 pid=1553 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.3" (uid=0 pid=855 comm="/usr/lib/bluetooth/bluetoothd " label="unconfined") Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [Alienware 15 R4, Realtek ALC3266, Black Headphone Out, Left] Underruns, dropouts or crackling sound UpgradeStatus: Upgraded to focal on 2020-05-12 (216 days ago) dmi.bios.date: 04/18/2019 dmi.bios.vendor: Alienware dmi.bios.version: 1.7.0 dmi.board.name: Alienware 15 R4 dmi.board.vendor: Alienware dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Alienware dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnAlienware:bvr1.7.0:bd04/18/2019:svnAlienware:pnAlienware15R4:pvr1.7.0:rvnAlienware:rnAlienware15R4:rvrA00:cvnAlienware:ct10:cvrNotSpecified: dmi.product.family: Alienware dmi.product.name: Alienware 15 R4 dmi.product.sku: 0876 dmi.product.version: 1.7.0 dmi.sys.vendor: Alienware --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ddt 22891 F.... pulseaudio /dev/snd/controlC0: ddt 22891 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-03-23 (267 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0c45:6708 Microdia Integrated_Webcam_FHD Bus 001 Device 002: ID 187c:0550 Alienware Corporation AW-ELC Bus 001 Device 004: ID 0cf3:e301 Qualcomm Atheros Communications Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Alienware Alienware 15 R4 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=875cff72-a3db-4709-ac4d-ce80b29b9970 ro i915.alpha_support=1 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 RelatedPackageVersions: linux-restricted-modules-5.4.0-58-generic N/A linux-backports-modules-5.4.0-58-generic N/A linux-firmware 1.187.6 Tags: focal Uname: Linux 5.4.0-58-generic x86_64 UpgradeStatus: Upgraded to focal on 2020-05-12 (217 days ago) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/18/2019 dmi.bios.vendor: Alienware dmi.bios.version: 1.7.0 dmi.board.name: Alienware 15 R4 dmi.board.vendor: Alienware dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Alienware dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnAlienware:bvr1.7.0:bd04/18/2019:svnAlienware:pnAlienware15R4:pvr1.7.0:rvnAlienware:rnAlienware15R4:rvrA00:cvnAlienware:ct10:cvrNotSpecified: dmi.product.family: Alienware dmi.product.name: Alienware 15 R4 dmi.product.sku: 0876 dmi.product.version: 1.7.0 dmi.sys.vendor: Alienware To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1908153/+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
