I found a work-around that allows detection of headphones to work correctly. by changing model name of the codec to "headset-mode" from "headset-mic" in /etc/modprobe.d/alsa-base.conf
However this did not solve the problem with headset mic, which is not working (tried all pins available from hdajackretask) for any of two of above specified model names. Alsa-info output: http://alsa- project.org/db/?f=5066c1fc285a210c75e5ef61712c35c2cce9efca -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1807138 Title: [ALC256 - Razer Blade 15 2018] Headphones not automatically detected Status in alsa-driver package in Ubuntu: Confirmed Bug description: Running the command alsamixer allows me to manually increase the sound levels for the headset, and sound plays properly through them. This requires me to disable the auto-mute feature. I haven't rebooted my system yet to see if this is permanent. But the UI doesn't show the heaphones at all and only sends sound through the main speakers of the laptop. ➜ ~ lspci -nnk | grep -i -A7 audio 00:1f.3 Audio device [0403]: Intel Corporation Device [8086:a348] (rev 10) Subsystem: Razer USA Ltd. Device [1a58:2001] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:1f.4 SMBus [0c05]: Intel Corporation Device [8086:a323] (rev 10) Subsystem: Razer USA Ltd. Device [1a58:2001] Kernel driver in use: i801_smbus Kernel modules: i2c_i801 ➜ ~ cat /proc/asound/card0/codec* | grep Codec Codec: Realtek ALC256 Codec: Intel Kabylake HDMI Using for example pavucontrol allows me to select the headphone, which are marked as unplugged, and I can play audio through them as long as I keep the application open. If I reboot or close pavucontrol, everything is back to the original state and only the speakers work. Additional Information: ➜ ~ lsb_release -rd Description: Ubuntu 18.04.1 LTS Release: 18.04 What I expect to happen: When I plug in my headphones, Ubuntu and the UI should see them and automatically redirect all sound through them. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 Uname: Linux 4.15.0-42-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: olivar 8320 F...m pulseaudio /dev/snd/controlC0: olivar 8320 F.... pulseaudio CurrentDesktop: X-Cinnamon Date: Thu Dec 6 13:02:14 2018 InstallationDate: Installed on 2018-11-21 (15 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Only some of outputs are working Title: [HDA-Intel - HDA Intel PCH, playback] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/31/2018 dmi.bios.vendor: Razer dmi.bios.version: 01.01 dmi.board.name: DANA_MB dmi.board.vendor: Razer dmi.chassis.type: 10 dmi.chassis.vendor: Razer dmi.modalias: dmi:bvnRazer:bvr01.01:bd08/31/2018:svnRazer:pnBlade:pvr1.04:rvnRazer:rnDANA_MB:rvr:cvnRazer:ct10:cvr: dmi.product.family: 1A582001 Razer Blade dmi.product.name: Blade dmi.product.version: 1.04 dmi.sys.vendor: Razer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1807138/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
