@gannon1 Some thoughts based on what I did today. I did make a recording (twice to make sure I didn't do it poorly) of the VM boot process. So from the time the VM initializes until you first see the win 10 desktop. To my surprise there is only 1 single CORB command during that process. It is this line and it is issued ~2173 times during the boot sequence of the vm :
CORB[45] = 0x0 (caddr:0x0 nid:0x0 control:0x0 param:0x0) So I don't think that was super helpful, other than it leads me to believe that the audio device and speakers are not initialized until needed, which might help shrink our search a bit. I next took a simple 9 second wav file and placed it on the desktop. I (trying 3 times to make sure it was reproducible) booted the VM, cleared the logs, and then clicked on the sound file to play it with media player. It does play through the speakers, so it seems like this data will have what we need. I was also concerned that if the driver is enabled JIT then perhaps it also disables it again when the sound ends, so I devised a way to capture just the CORB commands between the time I clicked on the file and I first heard sound.... I then used scripting to reduce it to just the CORB[x] lines and that gives us the attached smaller list of 944 CORB commands (attachment Play2Slim). ** Attachment added: "Play2lim" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851518/+attachment/5404542/+files/Play2Slim -- 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/1851518 Title: [950SBE/951SBE, Realtek ALC298, Speaker, Internal] No sound on internal speakers, very very quiet on headphones Status in linux package in Ubuntu: Confirmed Bug description: I've been googling this issue for 10's of hours and tried many things. Relase of Ubuntu: 19.10 Expected outcome: Music plays on the internal speakers and headphones. Actual outcome: I can barely hear audio using headphones with volume turned up to 150%. Absolutely nothing comes out of the speakers. (The speakers sound great under Windows 10.) Complete alsa-info output is attached, but here are some snippets: !!DMI Information !!--------------- Manufacturer: SAMSUNG ELECTRONICS CO., LTD. Product Name: 950SBE/951SBE Product Version: P06RES Firmware Version: P06RES.075.190529.SP Board Vendor: SAMSUNG ELECTRONICS CO., LTD. Board Name: NP950SBE-K01US !!Kernel Information !!------------------ Kernel release: 5.3.0-19-generic Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.3.0-19-generic Library version: 1.1.9 Utilities version: 1.1.9 !!Loaded ALSA modules !!------------------- snd_hda_intel !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0x604b118000 irq 177 !!PCI Soundcards installed in the system !!-------------------------------------- 00:1f.3 Multimedia audio controller: Intel Corporation Cannon Point-LP High Definition Audio Controller (rev 11) !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- 00:1f.3 0401: 8086:9dc8 (rev 11) DeviceName: Onboard - Sound !!HDA-Intel Codec information !!--------------------------- --startcollapse-- Codec: Realtek ALC298 Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x10ec0298 Subsystem Id: 0x144dc812 Revision Id: 0x100103 No Modem Function Group found Default PCM: rates [0x60]: 44100 48000 bits [0xe]: 16 20 24 formats [0x1]: PCM Default Amp-In caps: N/A Default Amp-Out caps: N/A State of AFG node 0x01: Power states: D0 D1 D2 D3 D3cold CLKSTOP EPSS Power: setting=D0, actual=D0 GPIO: io=8, o=0, i=0, unsolicited=1, wake=0 IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[4]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[5]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[6]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 IO[7]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0 Node 0x02 [Audio Output] wcaps 0x41d: Stereo Amp-Out Control: name="Headphone Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Device: name="ALC298 Analog", type="Audio", device=0 Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x01, mute=0 Amp-Out vals: [0x00 0x00] Converter: stream=1, channel=0 PCM: rates [0x60]: 44100 48000 bits [0xe]: 16 20 24 formats [0x1]: PCM Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Node 0x03 [Audio Output] wcaps 0x41d: Stereo Amp-Out Control: name="Speaker Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x01, mute=0 Amp-Out vals: [0x7f 0x7f] Converter: stream=1, channel=0 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: martin 1383 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Nov 6 06:20:08 2019 InstallationDate: Installed on 2019-11-03 (3 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) PackageArchitecture: all ProcEnviron: TERM=xterm-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_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: martin 1383 F.... pulseaudio Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [950SBE/951SBE, Realtek ALC298, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/29/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P06RES.075.190529.SP dmi.board.asset.tag: No Asset Tag dmi.board.name: NP950SBE-K01US dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SGL9849A0Q-C01-G003-S0001+10.0.17763 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP06RES.075.190529.SP:bd05/29/2019:svnSAMSUNGELECTRONICSCO.,LTD.:pn950SBE/951SBE:pvrP06RES:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP950SBE-K01US:rvrSGL9849A0Q-C01-G003-S0001+10.0.17763:cvnSAMSUNGELECTRONICSCO.,LTD.:ct31:cvrN/A: dmi.product.family: Notebook 9 Series dmi.product.name: 950SBE/951SBE dmi.product.sku: SCAI-A5A5-A5A5-A5A5-PRES dmi.product.version: P06RES dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. mtime.conffile..etc.modprobe.d.alsa-base.conf: 2019-11-05T23:13:55.854413 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851518/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
