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/ 2 Years ago, mon, september 12, 2022, 3:30:33
I have installed Ubuntu 13.04 on Lenovo G700 Laptop.
Screen backlight is going off after boot.
I have tried to fix it with setting
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
in /etc/default/grub file - in that case backlight is set up to 100% and I am not able to change it.
I am looking for a solution when screen is not black after boot and I am able to change the backlight.
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