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Bug#452894: Brightness is reduced when switching to a VT, using 3d games or switching resolution



Diego Escalante Urrelo wrote:
> After rebooting a few times, I have noted that it doesn't matter that
> thinkpad-acpi is loaded.
>   

Hum, surprising. Do you have any other kernel module like this one loaded?
IIRC, thinkpad-acpi was ibm-acpi in earlier kernels.

> I tried the command again after confirming the problem was happening
> on my current session, any of the arguments (legacy, combination,
> kernel, native) solved the problem.
>   

Any of them? But one of them should be enabled by default on X startup.

What does
    xrandr --prop
report after startup?
Is it different if thinkpad-acpi is loaded or not?

Brice





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