alsaconf is both terrible and outdated. You should almost never NEED to run it, and in many cases it is actively harmful to getting a working system with vanilla Alsa. I would undo the changes it made and try again with just alsa. Does your kernel have CONFIG_SND_HDA_INTEL? What modules are loaded? What does amixer or alsamixer report?

I have managed to solve the sound card issue: I ran #make menuconfig entered the section "device drivers", then marked sound card support as M, alsa as M and PCI sound card as * and the modules for my card as M and voilá now there a kernel driver in use: snd_oxigen 03:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 [Oxygen HD Audio] Subsystem: ASUSTeK Computer Inc. CMI8788 [Oxygen HD Audio] Flags: bus master, medium devsel, latency 64, IRQ 16 I/O ports at d800 [size=256] Capabilities: [c0] Power Management version 2 Kernel driver in use: snd_oxygen Kernel modules: snd_oxygen after that, then with the help of the IRC (tired890) I have created the .asoundrc file on my ~ directory because the sound card was not the default device bash-4.3# cat /proc/asound/cards 0 [DGX ]: CMI8786 - Xonar DGX C-Media Oxygen HD Audio at 0xd800, irq 16 1 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xfea7c000 irq 19 bash-4.3# pcm.!default { type hw card 1 } ctl.!default { type hw card 1 }