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Hello, i have an ASUS k56CM. every thing is ok i have nvidia with optimus so i use bumblebee with intel/nvidia.
the problem is sometimes after booting i have a good lighting and other times i have a very bad lighint (dark). i don't have any idea why this happen !
does any one have any idea ? i
PS: sorry for my english
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Could you provide dmesg and other logs for times when it was good and for times when it was bad?
In any case, setting LCD brightness via laptop-mode-tools or a manually written bash script should solve the issue.
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here is what i get just after a good boot : http://pastebin.com/qypLj1e0
and here is just after a bad bood: http://pastebin.com/avWm7RZt
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You could try adding "acpi_backlight=vendor" to your boot loader's kernel line.
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