Hi jhubuntu20, First, hopefully I can do you a solid and tell you how I fixed my brightness control at least (cause mine is a Galaxy Book2 Pro also, but with the ARC graphics). What worked for me was:
-Created /etc/modprobe.d/i915.conf with options i915 enable_dpcd_backlight=3 - Regenerated the initramfs: sudo update-initramfs -u -k all Hope that helps, unless you already tried. On my side, I am running kernel 6.0.0-1006-oem (which I got from the linux-oem-22.04b package, as opposed to the mainline tool, which i may try though). I tried that in hopes it would help, in addition to many other things (disabling windows fast boot on my other drive, disabling secure boot and fast bios, setting probe_mask=1, iommu=off, and others). Also tried playing with hdajackretask, because I'd be happy with retasking / giving up my working headphone jack for the speakers, but haven't figured that out. Also, when I tried your TO912.sh script (the first thing I tried actually), I was doing it following the instructions here -- https://forum.manjaro.org/t/howto-set-up-the-audio-card-in-samsung-galaxy-book/37090 This includes also blacklisting snd-hda-intel, removing alsa-conf, plus more. Should I not be doing that? (I've tried both ways though). The problem is I just don't have the right mental model for what's going on, so trying everything too blindly... but I'm trying to understand more. Most things have no effect (i.e., headphones work, speakers don't). However, the one tweak that has made the most effect is: options snd-intel-dspcfg dsp_driver=## - When I set this to "3", or leave the setting out (i.e., as it was on fresh install), alsamixer shows "sof-hda-dsp" for "Card" and "Realtek ALC298" for "Chip". When I use hdajackretask, it hangs completely when applying the retasking (and I've stopped pulseaudio, etc.), and the machine will hang on next shutdown. - But if I set it to "1", alsamixer then shows "HDA Intel PCH" for "Card", and still "Realtek..." for chip. I can use hdajackretask without it hanging up. And when I plug in headphones, I see a new "Headset or Headphone" GUI popup. But my mic doesn't look like it's working. (Also, I need to not blacklist snd-hda-intel for this config to work, otherwise I only have "Dummy Output") Do you happen to know which of those situations seems "more right"? I fear that there's more than one problem going on at once, and I wonder which setting (3 vs 1) I should use as I experiment with the other possibilities (your script, etc.) Lastly, I notice if I look in alsa-info, its reporting "line_outs=1", but "speaker_outs=0" in almost all configurations, and its not binding either line_out or speaker to anything in "/devices" (though it is binding the HDMIs, headphone, and sometimes the Mic). I checked my older laptop, however, which has speaker sound, and it reports the same (though its running a 4.xx kernel and the ALC256). I don't know if any of this gives any clues, and I apologize for my posts length and poor formatting.. I'm just trying to make sense of all this. -- 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: New Status in linux package in Ubuntu: Fix Released 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/linux/+bug/1851518/+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
