I've developed a working kernel workaround for this issue. Both amplifiers now probe successfully and produce audio on my HP EliteBook 8 G1i (Lunar Lake, kernel 6.17).
Full writeup and patches: https://gist.github.com/khalilst/0454f6ef2086f6d79d095653fb90313f The fix involves two changes: 1. serial-multi-instantiate: Acquire the CS GPIO from ACPI and set it on the controller's cs_gpiods array (setting it on the device doesn't work because __spi_add_device() overwrites it) 2. spi-pxa2xx: Force the LPSS clock gate on when using GPIO chip select (the dynamic clock gating blocks the SPI clock when no native CS is asserted) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2131138 Title: Internal speakers don't work in HP Elitebook 8 G1i 14 AI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2131138/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
