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Groups > comp.os.linux.misc > #66669
| From | Chris Ahlstrom <OFeem1987@teleworm.us> |
|---|---|
| Newsgroups | comp.os.linux.advocacy, comp.os.linux.misc |
| Subject | USB MIDI device plug-in changes sound volume |
| Followup-To | comp.os.linux.misc |
| Date | 2025-03-27 09:21 -0400 |
| Organization | None |
| Message-ID | <vs3jcg$4scl$3@dont-email.me> (permalink) |
Cross-posted to 2 groups.
Followups directed to: comp.os.linux.misc
Been happening lately on my Debian Sid mini-PC. It has a USB-to-headphone adapter [1] plugged in the back (USB 2), a USB 3 hub plugged into the front via a USB-C to USB-B adapter, and another USB 3 hub plugged into that hub. There are various USB-MIDI controller plugged in, plus a (currently unused) USB audio codec from Behringer. So I take one device (Korg nanoKey2) and plug it in. The volume drops. I turn it up via alsamixer. But it would be nice to figure out what is happening. [1] This adapter is a Philips product bought at Target. In alsamixer, it is called "iStore Audio". In pavucontrol, it's called "AB13X Headset Adapter Analog Stereo". Via lsusb it's called "Walmart AB13X Headset Adapter". -- It is now quite lawful for a Catholic woman to avoid pregnancy by a resort to mathematics, though she is still forbidden to resort to physics and chemistry. -- H. L. Mencken
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USB MIDI device plug-in changes sound volume Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-03-27 09:21 -0400
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