https://ticket.coreboot.org/https://ticket.coreboot.org/themes/PurpleMine2-2.16.2/favicon/favicon.ico?12020-04-27T04:52:11ZIssue Trackercoreboot - Bug #88: Some issues with coreboot on T420 (touchpad and phone jack)https://ticket.coreboot.org/issues/88?journal_id=6322020-04-27T04:52:11ZMark Smithmcdarkjedii@gmail.com
<ul></ul><p>With the current build as of April 27th 2020, the touchpad seems to get recognized properly under Windows 10. Windows update fetched the correct driver, and trackpoint scrolling also works properly like it has done on Linux all this time.</p>
<p>Throttling is also working nicely under Arch, Ubuntu and Windows 10. I've played games and the CPU has kept it's temperature under control.</p>
<p>The audio problem on the other hand still remains. No matter the drivers, the moment I plug any pair of headphones in, the speakers will get muted like usual, but absolutely no sound will play from the jack. This only happens under Windows 10. Under Linux both my headphones and microphone are detected.</p>
<p>I'm not sure what I can do to help, but since this is the very final issue preventing me from using coreboot and Windows 10 I'm willing to try anything. I would have used Linux only, but there is some software I am required to use for school and work which only works properly under Windows.</p>
coreboot - Bug #88: Some issues with coreboot on T420 (touchpad and phone jack)https://ticket.coreboot.org/issues/88?journal_id=6332020-04-27T05:23:24ZPaul Menzelpmenzel+ticket.coreboot@molgen.mpg.de
<ul></ul><p>Pok, if you can still test this, it’d be great, if you verified Mark’s findings.</p>
<p>For the Windows audio issue, what driver version is used? Can you please attach the output of <code>alsa-info.sh</code> [1], in Debian it’s packaged in <em>alsa-utils</em> as <code>/usr/sbin/alsa-info</code>, when running under the vendor firmware and when running coreboot?</p>
<blockquote>
<p>I would have used Linux only, but there is some software I am required to use for school and work which only works properly under Windows.</p>
</blockquote>
<p>Using a virtual machine or Wine/CrossOver might be an option here.</p>
coreboot - Bug #88: Some issues with coreboot on T420 (touchpad and phone jack)https://ticket.coreboot.org/issues/88?journal_id=6342020-04-27T19:23:38ZMark Smithmcdarkjedii@gmail.com
<ul><li><strong>File</strong> <a href="/attachments/233">audio drivers generic windows.png</a> <a class="icon-only icon-download" title="Download" href="/attachments/download/233/audio%20drivers%20generic%20windows.png">audio drivers generic windows.png</a> added</li><li><strong>File</strong> <a href="/attachments/234">alsa-info.txt</a> <a class="icon-only icon-download" title="Download" href="/attachments/download/234/alsa-info.txt">alsa-info.txt</a> added</li><li><strong>File</strong> <a href="/attachments/236">audio drivers conexant.png</a> <a class="icon-only icon-download" title="Download" href="/attachments/download/236/audio%20drivers%20conexant.png">audio drivers conexant.png</a> added</li></ul><p>These are the 2 drivers that I've been using on Windows 10. First are the generic drivers that Windows automatically fetched, second are with the official Conexant Audio Software version 8.32.44.0 from Lenovo's website.</p>
<p>The problem is the same with either driver.</p>
<p>I have included the alsa-info log as well. I ran it on Ubuntu 20.04 with the latest build of coreboot.</p>
<p>Unfortunately I'm unable to test in when running under the vendor firmware as the T420 requires complete disassembly to flash coreboot when the vendor firmware is installed. It's possible to solder wires to the debug pins and be able flash the BIOS chip directly without complete disassembly again, but I haven't been able to do that.</p>
<p>I will ask other people with the T420 if they're able to run alsa-info with the stock BIOS though. </p>
coreboot - Bug #88: Some issues with coreboot on T420 (touchpad and phone jack)https://ticket.coreboot.org/issues/88?journal_id=6352020-04-28T08:50:44ZPaul Menzelpmenzel+ticket.coreboot@molgen.mpg.de
<ul></ul><p>Just for clarification, there is one combined audio jack, so for microphone and speaker. Both do not work under Microsoft Windows 10, or just the microphone/speaker?</p>
coreboot - Bug #88: Some issues with coreboot on T420 (touchpad and phone jack)https://ticket.coreboot.org/issues/88?journal_id=6362020-04-28T16:34:05ZMark Smithmcdarkjedii@gmail.com
<ul></ul><p>Yes, it has a combo jack and neither the microphone or audio works under Windows 10.</p>