[Bug 203905] amdgpu:actual_brightness has unreal/wrong value

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=203905

--- Comment #7 from Sandor Ecker (esanya at freemail.hu) ---
I have upgraded to 5.6.rc1:

uname -a
Linux Aspire-A315-41 5.6.0-050600rc1-generic #202002092032 SMP Mon Feb 10
01:36:50 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux


I have seen that the code has log messages like:

DC_LOG_BACKLIGHT("New Backlight level: %d (0x%X)\n",
                        backlight_pwm_u16_16, backlight_pwm_u16_16);

I have set the kernel log by

echo "8" > /proc/sys/kernel/printk
cat /proc/sys/kernel/printk
8       4       1       7

but I can't see any logmessage with "New Backlight" in the output of the
commands:

grep -i "new backli" /var/log/*
dmesg |grep -i "back"

Maybe it does not reach that line of code? Or the log should be visible
somewhere else... ? 

Can somebody help...?

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