Comment 7 for bug 2042710

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Benjamin Drung (bdrung) wrote :

I stripped the timestamp (sed -s 's/\[[0-9. ]*\] //') and sorted the entries of the two dmesg outputs, but I did not find new entries in the diff.

lspci shows that following devices are using the intel_lpss_pci kernel module:

00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.2 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 (rev 21)
00:1e.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO UART Controller #0 (rev 21)
00:1e.3 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO SPI Controller #1 (rev 21)

and I found this in the dmesg log:

input: Apple SPI Keyboard as /devices/pci0000:00/0000:00:1e.3/pxa2xx-spi.3/spi_master/spi2/spi-APP000D:00/input/input4

which shows that the keyboard is connected via SPI on 00:1e.3.

That explains it. I will upload a fixed initramfs-tools to noble and file a bug against dracut to include intel_lpss_pci. Thanks for your investigation and help. Do you want to help on getting the SRU (see https://wiki.ubuntu.com/StableReleaseUpdates) into mantic?