Thank you for the quick response and for the clarification. I will go with a USB microphone as a workaround since I already use the 3.5mm jack for my stereo setup. Is this something that may be addressed in a future driver, or is it likely to remain unsupported for the foreseeable future? Thanks again for your time.
Sent from [Proton Mail](https://proton.me/mail/home) for iOS. -------- Original Message -------- On Tuesday, 05/26/26 at 11:47 Stuart Henderson <[email protected]> wrote: > this is common with various newer laptops, I haven't heard of anyone working > on a driver for these (this would probably want to use soundopenfirmware as a > base, most is under licences we can use). > > workaround would be to use a headset with mic via the 3.5mm TRRS connector or > a USB-connected mic with audio(4). > > -- > Sent from a phone, apologies for poor formatting. > > On 25 May 2026 11:35:33 [email protected] wrote: > >> Category: kernel >> Synopsis: Internal microphone not working on ThinkPad T490 (Realtek ALC257 / >> Intel SST) >> Description: Internal microphone produces no audio on ThinkPad T490 running >> OpenBSD 7.9. kern.audio.record=1, all mixer settings correct, all record >> channels unmuted. Recording produces files with Maximum amplitude 0.000000. >> The internal mic is routed through Intel Smart Sound Technology (SST), not >> the azalia HD audio codec. OpenBSD has no driver for Intel SST. >> How-To-Repeat: sox -t sndio default test.wav trim 0 3 && sox test.wav -n >> stat shows Maximum amplitude 0.000000 >> Fix: Driver needed for Intel Smart Sound Technology (SST) chip. >> Hardware: Lenovo ThinkPad T490, azalia0 codecs: Realtek ALC257, OpenBSD 7.9 >> amd64
