[Bug 221827] Backlight regression with 7.1.6

https://bugzilla.kernel.org/show_bug.cgi?id=221827

The Linux kernel's regression tracker (Thorsten Leemhuis) ([email protected]) changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected],
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--- Comment #1 from The Linux kernel's regression tracker (Thorsten Leemhuis) ([email protected]) ---
(In reply to Raymond Jay Golo from comment #0)
> Upon upgrading to 7.1.6, backlight at 100% is set to dimmest level.

@Mario, this is apparently caused by the following change of yours that was
backported to 7.1.y: f1b5d8f9cc54ae ("drm/amd/display: Fix backlight
max_brightness to match exported range") [v7.2-rc4, v7.1.6 (1191285ecb4233),
v6.18.42]

@Raymond: This might be a general problem or something specific to the
backport. Testing 7.2-rc6 or later is thus advised. You might also want to
attach dmesg files separately from a working and a broken kernel, as they most
likely will be helpful for debugging.

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