Just built my new computer, but my problem is I have no sound. Can you help please? I'll run through what I have done so far...
I installed Debian and updated the BIOS OK. I also apt-get updated and apt-get upgrade-distro'd OK Here's my setup:
michael@carbon:~$ inxi -Fxz System: Host: carbon Kernel: 3.16.0-4-amd64 x86_64 (64 bit gcc: 4.8.4) Desktop: Gnome 3.14.4 (Gtk 3.14.5-1+deb8u1) Distro: Debian GNU/Linux 8 Machine: Mobo: ASUSTeK model: H170M-PLUS v: Rev X.0x Bios: American Megatrends v: 0704 date: 02/15/2016 CPU: Quad core Intel Core i5-6600 (-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 26487 Clock Speeds: 1: 3301 MHz 2: 3301 MHz 3: 3301 MHz 4: 3301 MHz Graphics: Card: Intel Device 1912 bus-ID: 00:02.0 Display Server: X.Org 1.16.4 drivers: fbdev,vesa,intel Resolution: firstname.lastname@example.org GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.5, 256 bits) GLX Version: 3.0 Mesa 10.3.2 Direct Rendering: Yes Audio: Card Intel Device a170 driver: snd_hda_intel bus-ID: 00:1f.3 Sound: ALSA v: k3.16.0-4-amd64 Network: Card: Intel Ethernet Connection (2) I219-V driver: e1000e v: 2.3.2-k bus-ID: 00:1f.6 IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter> Drives: HDD Total Size: 3032.6GB (2.0% used) ID-1: /dev/sda model: ST3000DM001 size: 3000.6GB temp: 41C ID-2: USB /dev/sdb model: microSD_RDR size: 32.0GB temp: 0C Partition: ID-1: / size: 9.1G used: 4.9G (57%) fs: ext4 dev: /dev/sda2 ID-2: /home size: 2.7T used: 4.2G (1%) fs: ext4 dev: /dev/sda4 ID-3: swap-1 size: 34.10GB used: 0.00GB (0%) fs: swap dev: /dev/sda3 Sensors: System Temperatures: cpu: 66.0C mobo: 27.8C Fan Speeds (in rpm): cpu: N/A Info: Processes: 191 Uptime: 3:09 Memory: 1871.2/15963.8MB Init: systemd runlevel: 5 Gcc sys: N/A Client: Shell (bash 4.3.301) inxi: 2.1.28 michael@carbon:~$
Notice I am using the onboard sound, not a soundcard. Actually everything is onboard, the's only the mobo, no cards.
First I checked if I had sound as root, but I don't (BTW I am a member of group 'audio'):
michael@carbon:~$ id michael uid=1000(michael) gid=1000(michael) groups=1000(michael),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),108(netdev),110(lpadmin),113(scanner),117(bluetooth) michael@carbon:~$
Rythmbox is playing a track I know, and the volume is 100%.
Then I noticed, in Settings -> Sound, when I plug the headphones into the 3.5mm line-out socket on the back of the computer a device appears for sound output (it goes away and re-appears when I unplug and plug-in headphones, which I know work). The device is called: "Line Out - Built-in Audio" so I've checked all the devices, but that's the one I'm using to troubleshoot.
Test the speakers... left and right, both nothing.
Under the "applications" tab I made sure Rythmbox has volume set to 100% there too.
So I looked at the System Log, Xorg.O.log and I noticed the following lines...
. . . [ 63.602] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event8) [ 63.602] (II) No input driver specified, ignoring this device. [ 63.602] (II) This device may have been added with another device file. [ 63.602] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event9) [ 63.602] (II) No input driver specified, ignoring this device. [ 63.602] (II) This device may have been added with another device file. [ 63.602] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event10) [ 63.602] (II) No input driver specified, ignoring this device. [ 63.602] (II) This device may have been added with another device file. [ 63.602] (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event11) [ 63.602] (II) No input driver specified, ignoring this device. [ 63.602] (II) This device may have been added with another device file. [ 63.603] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event12) [ 63.603] (II) No input driver specified, ignoring this device. [ 63.603] (II) This device may have been added with another device file. . . .
I think that's the root cause of my problem, but looking at the CD that came with the mobo, I saw there's a directory for linux drivers that contains a file saying "Note: Please update to the latest Linux Kernel for motherboard chipset and components support." This is what I expect because, as I understand it, Linux should support the hardware using generic methods, without special drivers required by Windows (although I don't know whether Debian supports an Asus H170M-PLUS - it is a relatively new mobo...?) This message saying use the latest version and all will be OK, reinforces my belief is should work.
I'd like to uninstall and re-install the modules (aka device drivers in Windows) but not sure what to do...
michael@carbon:~$ ls /lib/modules/$(uname -r) kernel modules.alias modules.alias.bin modules.builtin modules.builtin.bin modules.dep modules.dep.bin modules.devname modules.order modules.softdep modules.symbols modules.symbols.bin michael@carbon:~$ ls /lib/modules/$(uname -r)/kernel/drivers/ acpi base bluetooth cpufreq dma firmware hid i2c infiniband leds memstick misc net pci power ptp ssb thermal uio vfio virtio xen ata bcma cdrom crypto edac gpio hv idle input md message mmc nfc pcmcia powercap scsi staging thunderbolt usb vhost w1 atm block char dca firewire gpu hwmon iio isdn media mfd mtd parport platform pps spi target tty uwb video watchdog michael@carbon:~$
I don't really know what I'm looking at there (or what I'm looking for), but there's nothing starting with "snd..." so what is there to uninstall?
root@carbon:/home/michael# alsactl init Found hardware: "HDA-Intel" "Intel ID 2809" "HDA:10ec0887,104386c7,00100302 HDA:80862809,80860101,00100000" "0x1043" "0x86c7" Hardware is initialized using a generic method root@carbon:/home/michael# lspci -v . . . 00:1f.3 Audio device: Intel Corporation Device a170 (rev 31) Subsystem: ASUSTeK Computer Inc. Device 86c7 Flags: bus master, fast devsel, latency 32, IRQ 139 Memory at f7040000 (64-bit, non-prefetchable) [size=16K] Memory at f7020000 (64-bit, non-prefetchable) [size=64K] Capabilities:  Power Management version 3 Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+ Kernel driver in use: snd_hda_intel . . .
I'd like to try un-installing and re-installing, but don't know the commands or the module.
Still no sound.
michael@carbon:~$ lspci -nn . . . 00:1f.3 Audio device : Intel Corporation Device [8086:a170] (rev 31) . . .
8086=Intel and a170=PCI sound, but "a170" is NOT found on the page listing PCI devices supported by debian. Could that be my problem?
Just rebooted to make sure nothing I have done has had any effect.
Still struggling with this one. How can "Line Out - Built-in Audio" be recognized by the system, but not have sound output?
Any ideas what to try next?