Debugging on Greg Herlein https://blog.herlein.com/tags/debugging/ Recent content in Debugging on Greg Herlein Hugo -- gohugo.io en &copy; 2018-2026. All rights reserved. Fri, 24 Apr 2026 01:00:00 -0700 How the AMD ISP4 Camera Stack Broke My ZBook Trackpad (and How Claude Helped Me Find It) https://blog.herlein.com/post/zbook-g1a-trackpad-fix/ Fri, 24 Apr 2026 01:00:00 -0700 https://blog.herlein.com/post/zbook-g1a-trackpad-fix/ <p>One morning I opened my HP ZBook Ultra G1a and the trackpad was dead. Keyboard fine. Touchscreen fine. External mouse fine. Trackpad: nothing. Twelve hours earlier it had worked. I hadn&rsquo;t changed anything. Welcome to bleeding-edge silicon on Linux.</p>