[Xfce-bugs] [Bug 16335] New: Changing screen resolution changes my audio sink from headphones to the speakers in my monitor

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=16335

            Bug ID: 16335
           Summary: Changing screen resolution changes my audio sink from
                    headphones to the speakers in my monitor
    Classification: Xfce Core
           Product: Xfce4-settings
           Version: 4.14.1
          Hardware: PC (x86_64)
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: Display Settings
          Assignee: xfce-bugs at xfce.org
          Reporter: frail.knight at gmail.com
  Target Milestone: Xfce 4.14

I changed my screen resolution from 2560x1440 to 1024x768 to test an
application, and my audio sink was switched from headphone output to the
speakers in my monitor for all applications playing sound.

I can repeatedly cause the resolution down-scaling to change my audio sink from
"Built-in Audio Analog Stereo" to "GP104 High Definition Audio Controller
Digital Stereo (HDMI 2)". As the sound can be carried through HDMI, maybe
something with the resolution change is causing the device/sink to be
re-detected and my system defaults to it. This does not appear to be happening
when I up-scale my resolution e.g. going from 1024x768 to 2560x1440.

Monitor: LG 27UD58P-B
Video Card: MSI GEFORCE GTX 1070 AERO ITX 8G

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