Date: Mon, 1 Oct 2018 09:43:02 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: Johannes Lundberg <johalun0@gmail.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Sound issues with Dell Latitude 7490 (kabylake) Message-ID: <201810011643.w91Gh2VH092607@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <CAECmPws%2BqW0-zy0ucN0JSDEX=JLpAHm=AbXJYRJ-Mejnoy4ecA@mail.gmail.com>
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> Hi > > While sound work out of the box (with headphone switching) on the 1-2 year > older Latitude 7270, it does not on my new machine. > > The internal speaker works fine. If I plug in external speakers in the > headphone jack, sound still goes to the internal speaker while a very load > buzz comes from the external speakers. > > Do we have a solution for this? I do not believe we have anything that detects stuff plugged into and removed from the newer sound stuff that needs switching to change from internal to external speakers. I think you need to do what I have to do when I plug in external speakers on my thinkpad x230: sysctl hw.snd.default_unit=1 And when I unplug them I have to do: sysctl hw.snd.default_unit=0 to switch back to the internal speakers. > > # cat /dev/sndstat > Installed devices: > pcm0: <Realtek ALC256 (Internal Analog)> (play/rec) default > pcm1: <Realtek ALC256 (Front Analog Headphones)> (play) > pcm2: <Intel Kabylake (HDMI/DP 8ch)> (play) > No devices installed from userspace. > > # sysctl hw.snd > hw.snd.maxautovchans: 16 > hw.snd.default_unit: 0 > hw.snd.version: 2009061500/amd64 > hw.snd.default_auto: 1 > hw.snd.verbose: 0 > hw.snd.vpc_mixer_bypass: 1 > hw.snd.feeder_rate_quality: 1 > hw.snd.feeder_rate_round: 25 > hw.snd.feeder_rate_max: 2016000 > hw.snd.feeder_rate_min: 1 > hw.snd.feeder_rate_polyphase_max: 183040 > hw.snd.feeder_rate_presets: 100:8:0.85 100:36:0.92 100:164:0.97 > hw.snd.feeder_eq_exact_rate: 0 > hw.snd.feeder_eq_presets: > PEQ:16000,0.2500,62,0.2500:-9,9,1.0:44100,48000,88200,96000,176400,192000 > hw.snd.basename_clone: 1 > hw.snd.compat_linux_mmap: 0 > hw.snd.syncdelay: -1 > hw.snd.usefrags: 0 > hw.snd.vpc_reset: 0 > hw.snd.vpc_0db: 45 > hw.snd.vpc_autoreset: 1 > hw.snd.timeout: 5 > hw.snd.latency_profile: 1 > hw.snd.latency: 5 > hw.snd.report_soft_matrix: 1 > hw.snd.report_soft_formats: 1 > > # sysctl dev.pcm > dev.pcm.2.bitperfect: 0 > dev.pcm.2.buffersize: 65536 > dev.pcm.2.play.vchanformat: s16le:2.0 > dev.pcm.2.play.vchanrate: 48000 > dev.pcm.2.play.vchanmode: passthrough > dev.pcm.2.play.vchans: 1 > dev.pcm.2.play.32bit: 24 > dev.pcm.2.%parent: hdaa1 > dev.pcm.2.%pnpinfo: > dev.pcm.2.%location: nid=3 > dev.pcm.2.%driver: pcm > dev.pcm.2.%desc: Intel Kabylake (HDMI/DP 8ch) > dev.pcm.1.bitperfect: 0 > dev.pcm.1.buffersize: 65536 > dev.pcm.1.play.vchanformat: s16le:2.0 > dev.pcm.1.play.vchanrate: 48000 > dev.pcm.1.play.vchanmode: fixed > dev.pcm.1.play.vchans: 1 > dev.pcm.1.play.32bit: 24 > dev.pcm.1.%parent: hdaa0 > dev.pcm.1.%pnpinfo: > dev.pcm.1.%location: nid=33 > dev.pcm.1.%driver: pcm > dev.pcm.1.%desc: Realtek ALC256 (Front Analog Headphones) > dev.pcm.0.bitperfect: 0 > dev.pcm.0.buffersize: 65536 > dev.pcm.0.rec.vchanformat: s16le:2.0 > dev.pcm.0.rec.vchanrate: 48000 > dev.pcm.0.rec.vchanmode: fixed > dev.pcm.0.rec.vchans: 1 > dev.pcm.0.rec.autosrc: 2 > dev.pcm.0.rec.32bit: 24 > dev.pcm.0.play.vchanformat: s16le:2.0 > dev.pcm.0.play.vchanrate: 48000 > dev.pcm.0.play.vchanmode: fixed > dev.pcm.0.play.vchans: 2 > dev.pcm.0.play.32bit: 24 > dev.pcm.0.%parent: hdaa0 > dev.pcm.0.%pnpinfo: > dev.pcm.0.%location: nid=20,18 > dev.pcm.0.%driver: pcm > dev.pcm.0.%desc: Realtek ALC256 (Internal Analog) > dev.pcm.%parent: > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > -- Rod Grimes rgrimes@freebsd.org
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