Same problem here, Acer Aspire VN7-792G 00:1f.3 Multimedia audio controller: Intel Corporation Sunrise Point-H HD Audio (rev 31)
dvitali@denvit-ws1:~ $ aplay -L -1- null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server sysdefault:CARD=PCH HDA Intel PCH, ALC255 Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog Front speakers surround21:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=PCH,DEV=0 HDA Intel PCH, ALC255 Digital IEC958 (S/PDIF) Digital Audio Output hdmi:CARD=PCH,DEV=0 HDA Intel PCH, HDMI 0 HDMI Audio Output hdmi:CARD=PCH,DEV=1 HDA Intel PCH, HDMI 1 HDMI Audio Output hdmi:CARD=PCH,DEV=2 HDA Intel PCH, HDMI 2 HDMI Audio Output ------ Linux denvit-ws1 4.10.3-1-ARCH #1 SMP PREEMPT Wed Mar 15 09:17:17 CET 2017 x86_64 GNU/Linux ------ dvitali@denvit-ws1:~ $ cat /proc/asound/cards -1- 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0x84320000 irq 129 ----- pacman -Q | grep ^alsa alsa-lib 1.1.3-1 alsa-plugins 1.1.1-1 alsa-utils 1.1.3-2 alsaequal 0.6-16 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523100 Title: Alsa not detecting internal microphone [ALC255] (Realtek) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1523100/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs