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Linux kernel source tree
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If a Radeon 6750M GPU from an iMac12,1 is installed into an iMac 12,2, there is no backlight device initialized during boot. Everything else is functional, but the display brightness cannot be controlled. There are no directories present in /sys/class/backlight after booting. A simple one line modification to an if statement fixes this issue by initializing the radeon backlight device for an iMac12,2 as well if it has a 6750M. After the patch, brightness can be controlled and radeon_bl0 is present in /sys/class/backlight. This was tested by compiling the latest kernel with and without the patch. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3378 Signed-off-by: Kendall Smith <kendallsm2@icloud.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.