Hi, i'm new to Ubuntu, also not a native English speaker so i'll do my best explaining what's going on.
I bought a new laptop a few days ago and it was working fine. But when i decided to connect some audio involved dedvices (HDMI and headphones) i started having troubles with the sound configuration. After connecting/disconnecting them i had to change manually the the audio divice who was actually on use, or else there were no audio output.
But today, the sound configuration showed this "Dummy output" on the device list and there was no sound output at all.
I've searched for solutions and i've tried some, but they hadn't worked for me. The las one i saw asked to try this on terminal:
Code:
cd ~/ wget http://ift.tt/MIN3Z0 -O alsa-info.sh && bash alsa-info.sh
Code:
!!################################!!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Sat Aug 20 21:26:52 UTC 2016 !!Linux Distribution !!------------------ Ubuntu 14.04.5 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 14.04.5 LTS" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://ift.tt/1b8fcBF" !!DMI Information !!--------------- Manufacturer: Dell Inc. Product Name: Inspiron 3459 Product Version: Firmware Version: 01.00.04 !!Kernel Information !!------------------ Kernel release: 3.19.0-66-generic Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k3.19.0-66-generic Library version: 1.0.27.2 Utilities version: 1.0.27.2 !!Loaded ALSA modules !!------------------- !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- --- no soundcards --- !!PCI Soundcards installed in the system !!-------------------------------------- 00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21) !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- 00:1f.3 0403: 8086:9d70 (rev 21) Subsystem: 1028:06b1 !!Modprobe options (Sound related) !!-------------------------------- snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_usb_audio: index=-2 snd_usb_caiaq: index=-2 snd_usb_ua101: index=-2 snd_usb_us122l: index=-2 snd_usb_usx2y: index=-2 snd_cmipci: mpu_port=0x330 fm_port=0x388 snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_hda_intel: jackpoll_ms=500 !!Loaded sound module options !!--------------------------- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 1 Aug 20 18:13 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Aug 20 18:13 /dev/snd/timer !!Aplay/Arecord output !!-------------------- APLAY aplay: device_list:268: no soundcards found... ARECORD arecord: device_list:268: no soundcards found... !!Amixer output !!------------- !!Alsactl output !!-------------- --startcollapse-- --endcollapse-- !!All Loaded Modules !!------------------ Module nvram msr uvcvideo rtsx_usb_ms videobuf2_vmalloc videobuf2_memops videobuf2_core memstick v4l2_common arc4 videodev iwlmvm x86_pkg_temp_thermal media snd_hwdep coretemp kvm_intel kvm snd_pcm mac80211 snd_seq_midi crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw dell_wmi snd_seq_midi_event gf128mul sparse_keymap snd_rawmidi dell_laptop glue_helper snd_seq i915_bpo iwlwifi dcdbas intel_ips rfcomm cfg80211 btusb drm_kms_helper drm i8k i2c_algo_bit dm_multipath scsi_dh i2c_hid snd_seq_device joydev ablk_helper snd_timer bnep serio_raw cryptd acpi_pad bluetooth hid snd soundcore mac_hid shpchp binfmt_misc parport_pc ppdev lp parport nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log rtsx_usb_sdmmc rtsx_usb psmouse r8169 ahci mii libahci wmi video !!ALSA/HDA dmesg !!--------------
Lucas.
Dummy output - Audio problem
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