Great work, thanks Simon.
I presume that there is no noticeable difference in brightness between
04 and 07 then?
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Thanks Simon,
Looks like the KBCL variable is indeed the right one. Strange that it
changed from 01 to 04 rather than 01 to 05 though... If you have time
for a few more tests, I would love to know what values it takes when the
UEFI variable is modified from 00 through 07.
Currently we have:
UEFI
Simon,
Sorry about that - there was a syntax problem in regions.c
I've just updated it so it should work properly now, if you are happy to
test it again.
The keyboard shortcut is currently set up to connect to the samsung
laptop kernel driver, but since the module is disabled on UEFI, the
shortc
Simon,
It looks like your UEFI variable has a different name:
KBDBacklitLvl-8be4df61-93ca-11d2-aa0d-00e098032b8c
Please do xxd on this and see if it looks similar to my
SecKeyboardBacklightLevel variable.
Thanks for your DSDT. It looks like your machine doesn't have a KBLL
variable... the close
For those without KeyboardBacklight UEFI variables, can you attach a
list of the UEFI variables you do have, as well as attach a dump of your
DSDT:
sudo cat /sys/firmware/acpi/tables/DSDT > DSDT.aml
If you are not using UEFI (e.g. you have no /sys/firmware/efi directory)
then none of this will he
If you have UEFI disabled, the keyboard backlight control should work
automatically through the samsung-laptop kernel module.
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If you are using UEFI, do not remove the blacklist on samsung-laptop!
You are probably safe from the bricking bug with a recent kernel, but
there are other UEFI problems with samsung-laptop that have never been
resolved, like machine check exceptions.
I did find a way of setting the keyboard back
