Thank you for the suggestion.
I have now updated the BIOS to the latest version 205.
Ubuntu no longer boots. It gets stuck on the ubuntu boot screen. With
the ubuntu logo and the small dots below it.
I am still able to boot Mint and the problem is not fixed in Mint.
Let me know if I can do anything else.
I will try to explain the problem I had before the BIOS update.
If I press the keyboard shortcuts to change the backlight brightness.
Nothing happens.
If I change the brightness in the power manager GUI by dragging the
slider. Changing the brightness works.
If I install the official proprietary Nvidia driver. The slider
disappears and there are no other way to change the brightness.
I don't know if the following information helps to understand the issue
but in Windows the hot keys works perfectly. Although in Windows it
shows that the display is using the Intel GPU. While Renderer is set to
NVIDIA GPU. And so they are both used together with nvidia optimus
system.
I don't know how it works in linux but I suspect that it picks one of
the GPUs resulting in lost functionality.
Regardless the hot keys should work even if only the Intel GPU is being
used.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1460088
Title:
Backlight control does not work on Asus Zenbook Pro UX501JW / Nvidia
Geforce GTX 960M
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