** Changed in: linux (Ubuntu Cosmic) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Disco) Importance: Undecided => Medium
** Changed in: linux (Ubuntu Bionic) Importance: Undecided => Low -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1826868 Title: Sound device not detected after resume from hibernate Status in linux package in Ubuntu: Confirmed Status in linux-oem package in Ubuntu: Fix Released Status in linux source package in Bionic: New Status in linux-oem source package in Bionic: Fix Released Status in linux source package in Cosmic: New Status in linux-oem source package in Cosmic: Invalid Status in linux source package in Disco: New Status in linux-oem source package in Disco: Invalid Bug description: The patch is already in the v5.2-rc1, so don't send the patch to unstable. In the V2, I added 3 more patches. The 0001-xxx.patch is for fixing the issue of "audio doesn't work after s3/s4 on cln and glk machines", but it introduces a new issue of "screen flickering when CDCLK changes", So I added 0002/3/4-xxx.patch to fix the new issue. [Impact] After s3 or s4, the hdmi audio driver will re-probe the hw, if the hdmi monitor is not plugged before s3 or s4, the re-probe will fail on cnl and glk machines. [Fix] Keep the cdclk alive when re-probing [Test Case] I applied the patches to bionic kernel and disco kernel, and tested them on Whiskeylake, cannonlake, kabylake, skylake and geminilake machines, before s3, I verified analogue audio, hdmi audio and screen dispaly all worked well, then let the system enter s3 and resume, recheck the analogue audio, hdmi audio and screen display, all worked well too. And repeated the test 5 times. [Regression Risk] Low. I have tested the patched kernel on different Dell and Lenovo machines, they include Whiskeylake, cannonlake, kabylake, skylake and geminilake. dmesg -w shows the following: snd_hda_codec_realtek hdaudioC0D0: out of range cmd 0:20:400:ffffffff snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000. -5 ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: linux-image-5.0.0-13-generic 5.0.0-13.14 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rob 1551 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Apr 29 21:22:18 2019 InstallationDate: Installed on 2019-04-24 (4 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 05c8:022a Cheng Uei Precision Industry Co., Ltd (Foxlink) Bus 001 Device 002: ID 0bda:b00b Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP Stream x360 Convertible 11-ag1XX ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-13-generic root=UUID=e0182eac-9bb3-45c5-b4e9-3b21715dbc95 ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-5.0.0-13-generic N/A linux-backports-modules-5.0.0-13-generic N/A linux-firmware 1.178 SourcePackage: linux StagingDrivers: r8822be UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/22/2018 dmi.bios.vendor: Insyde dmi.bios.version: F.10 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 8501 dmi.board.vendor: HP dmi.board.version: 05.21 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.10:bd05/22/2018:svnHP:pnHPStreamx360Convertible11-ag1XX:pvrType1ProductConfigId:rvnHP:rn8501:rvr05.21:cvnHP:ct31:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Stream x360 Convertible 11-ag1XX dmi.product.sku: 4RV86PA#ABG dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826868/+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