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commit38077562e0("drm/amd/display: Implement new backlight_level_params structure") adjusted DC core to require the backlight type to be programmed in the dc link when changing brightness. This isn't initialized in amdgpu_dm for OLED panels though which broke brightness. Explicitly initialize when aux support is enabled. Reported-and-tested-by: Luke Jones <luke@ljones.dev> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3792 Fixes:38077562e0("drm/amd/display: Implement new backlight_level_params structure") Reviewed-by: Harry Wentland <harry.wentland@amd.com> Link: https://lore.kernel.org/r/20241128032200.2085398-1-superm1@kernel.org Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.