[X/B/F/G/H/Unstable][SRU][PATCH 0/1] Fix non-working touchpad on ByteSpeed C15B laptop

Po-Hsu Lin po-hsu.lin at canonical.com
Thu Dec 10 06:14:14 UTC 2020

Touchpad on a ByteSpeed C15B laptop is not working.
User will need to add i8042.noloop=1 to boot options to make it work.

* a48491c65b513e ("Input: i8042 - add ByteSpeed touchpad to noloop table")

This fix can be cherry-picked into all affected releases.

[Test Case]
Test kernel for Bionic / Focal can be found here:

And they have been tested with positive test results.

[Where problems could occur]
The fix is just a small and simple hardware quirk. I can't think of
any potential problem for now.

Po-Hsu Lin (1):
  Input: i8042 - add ByteSpeed touchpad to noloop table

 drivers/input/serio/i8042-x86ia64io.h | 4 ++++
 1 file changed, 4 insertions(+)


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