Sound Effects bug?

[invex]

I'm using 18.3 but the following problem was in 18.2 as well.

All sound effects work fine except if there's no activity for about 30 seconds the sound effect won't work.
For example: No activity for about 30 seconds and then I minimize window there's no sound. If right after I restore window there's a sound effect.
It drives me crazy

[jimallyn]

It would probably be helpful to post the output of entering inxi -Fxz in a terminal. I probably can't help with that problem myself, but that command will give much of the information that those who can help you will want.

[invex]

mk@Invex-Mint ~ $ inxi -Fxz
System: Host: Invex-Mint Kernel: 4.14.2-041402-generic x86_64 (64 bit gcc: 7.2.0)
Desktop: Cinnamon 3.6.6 (Gtk 2.24.30)
Distro: Linux Mint 18.3 Sylvia
Machine: System: ASUSTeK (portable) product: UX305CA v: 1.0
Mobo: ASUSTeK model: UX305CA v: 1.0
Bios: American Megatrends v: UX305CA.300 date: 06/08/2016
CPU: Dual core Intel Core m3-6Y30 (-HT-MCP-) cache: 4096 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 6048
clock speeds: max: 2200 MHz 1: 1500 MHz 2: 1500 MHz 3: 1500 MHz
4: 1500 MHz
Graphics: Card: Intel HD Graphics 515 bus-ID: 00:02.0
Display Server: X.Org 1.18.4 drivers: (unloaded: fbdev,vesa)
Resolution: 2560x1440@59.95hz
GLX Renderer: Mesa DRI Intel HD Graphics 515 (Skylake GT2)
GLX Version: 3.0 Mesa 17.0.7 Direct Rendering: Yes
Audio: Card-1 Intel Sunrise Point-LP HD Audio
driver: snd_hda_intel bus-ID: 00:1f.3
Card-2 Microsoft LifeCam Cinema driver: USB Audio usb-ID: 001-007
Sound: Advanced Linux Sound Architecture v: k4.14.2-041402-generic
Network: Card: Intel Wireless 7265 driver: iwlwifi bus-ID: 01:00.0
IF: wlp1s0 state: up mac: <filter>
Drives: HDD Total Size: 1756.4GB (49.7% used)
ID-1: /dev/sda model: LITEON_CV1 size: 256.1GB
ID-2: USB /dev/sdb model: 2115 size: 1500.3GB
Partition: ID-1: / size: 229G used: 138G (64%) fs: ext4 dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 40.5C mobo: N/A
Fan Speeds (in rpm): cpu: 0
Info: Processes: 306 Uptime: 9:43 Memory: 4512.8/7873.7MB
Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35

[invex]

I don't know if it's relevant but sound output is set for HDMI.