It looks to me (a non-kernel expert) like the driver for the keyboard
and trackpad can't read or write to the device due to the IOMMU not
being set up to allow those reads/writes (e.g.):

Jun 02 06:54:51 aritrade kernel: input: Apple SPI Keyboard as 
/devices/pci0000:00/0000:00:1e.3/pxa2xx-spi.3/spi_master/spi2/spi-APP000D:00/input/input4
Jun 02 06:54:51 aritrade kernel: DMAR: DRHD: handling fault status reg 3
Jun 02 06:54:51 aritrade kernel: applespi spi-APP000D:00: Error writing to 
device: 00 00 00 00
Jun 02 06:54:51 aritrade kernel: DMAR: [DMA Read NO_PASID] Request device 
[00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set
Jun 02 06:54:51 aritrade kernel: DMAR: DRHD: handling fault status reg 3
Jun 02 06:54:51 aritrade kernel: applespi spi-APP000D:00: Error writing to 
device: 00 00 00 00
Jun 02 06:54:51 aritrade kernel: DMAR: [DMA Read NO_PASID] Request device 
[00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set
Jun 02 06:54:51 aritrade kernel: DMAR: DRHD: handling fault status reg 3
Jun 02 06:54:51 aritrade kernel: applespi spi-APP000D:00: Error writing to 
device: 00 00 00 00
Jun 02 06:54:51 aritrade kernel: DMAR: [DMA Read NO_PASID] Request device 
[00:1e.3] fault addr 0xffffa000 [fault reason 0x06] PTE Read access is not set


For the entertainment of a true expert I've attached the output of 'journalctl 
--since today _TRANSPORT=kernel'.  This includes the kernel messages for these 
boots today:

 * Jun 02 06:40:46 aritrade kernel: Linux version 6.11.0-26-generic (working 
keyboard and trackpad)
 * Jun 02 06:53:06 aritrade kernel: Linux version 6.12.0-061200-generic (broken 
keyboard and trackpad)
 * Jun 02 06:54:51 aritrade kernel: Linux version 6.13.0-061300rc1-generic 
(broken keyboard and trackpad)
 * Jun 02 07:10:09 aritrade kernel: Linux version 6.11.0-26-generic (working 
keyboard and trackpad)
 * Jun 02 07:44:44 aritrade kernel: Linux version 6.12.0-061200rc7-generic 
(broken keyboard and trackpad)
 * Jun 02 07:47:32 aritrade kernel: Linux version 6.11.0-26-generic (working 
keyboard and trackpad)
 * Jun 02 18:20:23 aritrade kernel: Linux version 6.11.0-26-generic (working 
keyboard and trackpad)


** Attachment added: "20250602-journalctl-TRANSPORT-kernel.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2107976/+attachment/5881797/+files/20250602-journalctl-TRANSPORT-kernel.txt

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https://bugs.launchpad.net/bugs/2107976

Title:
  Apple spi keyboard/trackpad not working 25.04

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