When you want to argue against me,
show me the schematics of that mainboard and the correlated software code passages which handle the screen brightness. if you can’t which I assume because you do not have access to these schematics, than do not write any nonsense.
The schematics will prove who controls that stuff, and the software just verifies that.
The issue is with all those locked down binary software.
bios is locked and not open source
and both do not work properly as they should
If those work as they should, they would generate acpi events or set the brightness without any acpi events. is not the case
The last hardware piece is the inverter and than the led backlight, but who control these?
and i tell you it is highly the gpu itself
When you have taken your time you would have seen, that the intel guy, assume he knows more than the average guy, pointed out to the gpu guys.
First notebook, x700 from ati no issues.
Second notebook nvidia 9800m gts in a Asus g70sg (nvidia drivers fault at the end with wrong assigned bios / memory bars) was unfixable for 2 years. i patched manually the kernel.
Third notebook, ASUS g75vw, ACPI / nvidia locks out some certain events.
As it is screen related i am quite sure it is nvidia fault.
Feel free to provide any serious help, or just leave the topic unanswered, thanks
Technically there is usually an inverter which sets the brightness via pwm or some other fashion.
But who controls the inverter?
If the bios / nvidia bios would have been correctly implemented
i would have gotten acpi events / acpi interface to set the brightness, which is not the case.
I am not that convinced anymore to give nvidia any money when 100 % of the hardware sold has bugs. I buy hardware and I can expect it stays to the acpi standards and not only Windows only shit hardware.
The gpu bios is very locked down.
i do not get the point why nvidia-smi can not provide any useful information also.
anything locked down, brings issues, make it open and just sell the hardware.