Sound reverts to internal speakers on boot

[kanichiro]

For the past several years I've had to manually change my default speakers from Internal to External. I've placed a Sound button on my panel so every time I launch Mint, or log back in from the Screen Saver I can easily change the speaker selection to the external speakers I use.

Speaker Selections.png

This started about the time I switched from LM 17.** to LM 18.**

Yes, I know that I have an old computer, but I can't afford a new one. Actually, my trusty lappy turns 9-years old next month. I am sticking with LM 18.0 as my ancient computer doesn't like newer versions.

Hardware Info

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System:    Host: lappy Kernel: 4.4.0-36-generic x86_64 (64 bit gcc: 5.4.0)
           Desktop: Cinnamon 3.0.7 (Gtk 3.18.9-1ubuntu3.1)
           Distro: Linux Mint 18 Sarah
Machine:   System: Sony (portable) product: VPCEB26GM v: C6054NRR
           Mobo: Sony model: VAIO
           Bios: American Megatrends v: R0300Y8 date: 07/20/2010
CPU:       Dual core Intel Core i5 M 430 (-HT-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 9043
           clock speeds: max: 2267 MHz 1: 2267 MHz 2: 1199 MHz 3: 1199 MHz
           4: 1199 MHz
Graphics:  Card: Intel Core Processor Integrated Graphics Controller
           bus-ID: 00:02.0
           Display Server: X.Org 1.18.3 drivers: intel (unloaded: fbdev,vesa)
           Resolution: 1366x768@59.79hz
           GLX Renderer: Mesa DRI Intel Ironlake Mobile
           GLX Version: 2.1 Mesa 11.2.0 Direct Rendering: Yes
Audio:     Card Intel 5 Series/3400 Series High Definition Audio
           driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture v: k4.4.0-36-generic
Network:   Card-1: Intel Centrino Advanced-N 6200
           driver: iwlwifi bus-ID: 02:00.0
           IF: wlp2s0 state: up mac: <filter>
           Card-2: Marvell Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB]
           driver: sky2 v: 1.30 port: b000 bus-ID: 04:00.0
           IF: enp4s0 state: down mac: <filter>
Drives:    HDD Total Size: 1000.2GB (14.8% used)
           ID-1: /dev/sda model: CLOVER_CN size: 1000.2GB
Partition: ID-1: / size: 910G used: 131G (16%) fs: ext4 dev: /dev/sda1
           ID-2: swap-1 size: 8.23GB used: 0.00GB (0%) fs: swap dev: /dev/sda5
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 63.0C mobo: 61.0C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 203 Uptime: 17 min Memory: 579.7/7647.6MB
           Init: systemd runlevel: 5 Gcc sys: 5.40
           Client: Shell (bash 4.3.421) inxi: 2.2.35