how to split sound between speakers and headphones

I just read your post and some of the good replies to it.

Init: systemd runlevel: 5 Compilers: gcc: 7.4.0 Shell: bash v: 4.4.19 System Temperatures: cpu: 45.0 C mobo: 27.8 C gpu: nvidia temp: 54 Cįan Speeds (RPM): N/A gpu: nvidia fan: 0% ID-2: /dev/sdb vendor: Toshiba model: HDWE140 size: 3.64 TiB ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 250GB size: 232.89 GiB IF: eno1 state: up speed: 1000 Mbps duplex: full mac: OpenGL: renderer: GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA 418.56ĭevice-1: Intel Cannon Lake PCH cAVS vendor: Gigabyteĭriver: snd_hda_intel v: kernel bus ID: 00:1f.3ĭevice-2: NVIDIA GP106 High Definition Audio vendor: Gigabyteĭriver: snd_hda_intel v: kernel bus ID: 01:00.1ĭevice-1: Intel Ethernet I219-V vendor: Gigabyte driver: e1000e v: 3.2.6-k

Unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz Topology: 6-Core model: Intel Core i7-8700 bits: 64 type: MT MCPĪrch: Kaby Lake rev: A L2 cache: 12.0 MiBįlags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 76608 Mobo: Gigabyte model: Z390 GAMING X-CF serial: Type: Desktop System: Gigabyte product: Z390 GAMING X v: N/A V: 7.3.0 Desktop: Cinnamon 4.0.10 Distro: Linux Mint 19.1 Tessa Host: NinjaLynn Kernel: 4.15.0-48-generic x86_64 bits: 64 compiler: gcc

How to split sound between speakers and headphones