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Today the official linux-image-6.14.0-22-generic/plucky-updates,plucky-
security,now 6.14.0-22.22 was released for upgrades.  It overwrote the
testing image referenced above, but because the unsigned test image
modules weren't upgraded my computer wouldn't boot.  I booted the
Oracular kernel and ran this command to "downgrade" the modules to match
the newly released kernel:

sudo apt-get install linux-modules-6.14.0-22-generic=6.14.0-22.22 linux-
modules-extra-6.14.0-22-generic=6.14.0-22.22

This kernel boots but doesn't have the spikeyboard/IOMMU fix in it, so
the keyboard and trackpad didn't work.  Looks like the fix was committed
for the future 6.14.0-24-generic release.  So when -24 is released we
MacBook users ought to be able to run off the supported Plucky kernel
instead of the Oracular kernel.

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

Title:
  Apple spi keyboard/trackpad not working 25.04

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