Might need more than one reboot.
Also, when you use the F-keys, the Fn key should be pressed down continuously while you repeatedly & gently tap the F5 or F6 key until you get the brightness level you want.
Failing the above, add "Linux" to the GRUB_CMDLINE I mentioned in post#4, so that it reads:
Might be a longshot, but it worked in Manjaro.
Also, when you use the F-keys, the Fn key should be pressed down continuously while you repeatedly & gently tap the F5 or F6 key until you get the brightness level you want.
Failing the above, add "Linux" to the GRUB_CMDLINE I mentioned in post#4, so that it reads:
Code:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"Might be a longshot, but it worked in Manjaro.
64bit OS (32-bit on Samsung[i] netbook) installed in [i]Legacy mode on MBR-formatted SSDs (except pi which uses a micro SDHC card):
2017 - Raspberry pi 3B (4cores) ~ [email protected] - LibreElec, used for upgrading our Samsung TV (excellent for the task)
2012 - Lenovo G580 2689 (2cores; 4threads] ~ [email protected] - LL3.8/Win8.1 dual-boot (LL working smoothly)
2011 - Samsung NP-N145 Plus (1core; 2threads) ~ Intel Atom [email protected] - LL 3.8 32-bit (64-bit too 'laggy')
2008 - Asus X71Q (2cores) ~ Intel [email protected] - LL4.6/Win8.1 dual-boot, LL works fine with kernel 4.15
2007 - Dell Latitude D630 (2cores) ~ Intel [email protected] - LL4.6, works well with kernel 4.4; 4.15 doesn't work
2017 - Raspberry pi 3B (4cores) ~ [email protected] - LibreElec, used for upgrading our Samsung TV (excellent for the task)
2012 - Lenovo G580 2689 (2cores; 4threads] ~ [email protected] - LL3.8/Win8.1 dual-boot (LL working smoothly)
2011 - Samsung NP-N145 Plus (1core; 2threads) ~ Intel Atom [email protected] - LL 3.8 32-bit (64-bit too 'laggy')
2008 - Asus X71Q (2cores) ~ Intel [email protected] - LL4.6/Win8.1 dual-boot, LL works fine with kernel 4.15
2007 - Dell Latitude D630 (2cores) ~ Intel [email protected] - LL4.6, works well with kernel 4.4; 4.15 doesn't work