<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Sep 16, 2020, at 14:14, <a href="mailto:arocker@vex.net" class="">arocker@vex.net</a> <<a href="mailto:arocker@Vex.Net" class="">arocker@Vex.Net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><br class="">I'm trying to diagnose some audio problems on laptops; apparent failure to<br class="">make a mic connection (3.5mm combined audio jack) and distorted sound<br class="">being 2 major ones. Sites such as Skype have been some help, but I'd like<br class="">to have some local diagnostic tools e.g. to indicate whether the machine<br class="">can even see the mic.<br class=""><br class="">Has anyone any suggestions for Open Source diagnostic tools?<br class=""></div></blockquote><br class=""></div><div>First off, assuming it’s the Pinebook Pro, what position is the UART switch on the mainboard[1]? Status of the privacy switch[2]? Alsamixer output?</div><div><br class=""></div><div>[1] <a href="https://wiki.pine64.org/index.php?title=Pinebook_Pro_Troubleshooting_Guide#Sound" class="">https://wiki.pine64.org/index.php?title=Pinebook_Pro_Troubleshooting_Guide#Sound</a></div><div>[2] <a href="https://wiki.pine64.org/index.php?title=Pinebook_Pro#Microphones" class="">https://wiki.pine64.org/index.php?title=Pinebook_Pro#Microphones</a></div><div><br class=""></div><div>Seneca</div></body></html>