Re: Backlight control does not work no entries /sys/class/backlight
"Xi Ruoyao" ([email protected] via blfs-support Mailing List) <[email protected]> Sat, 27 Sep 2025 23:39:11 +0800
| Newsgroups | gmane.linux.lfs.beyond.support |
|---|---|
| Message-ID | <[email protected]> |
On Sat, 2025-09-27 at 15:21 +0000, Cliff mcDiarmid wrote: > The interesting thing is that the Ubuntu distro I used to build LFS has the > same firmware, drivers etc and the backlight functions! So if the "same" here means the exactly same file... note that Ubuntu has /lib/firmware/amdgpu/renoir_asd.bin.zst that the Ubuntu maintainers have compressed with zstd. If you want to use it you must set CONFIG_FW_LOADER_COMPRESS_ZSTD=y when you build the kernel. -- Xi Ruoyao <[email protected]> -- http://lists.linuxfromscratch.org/sympa/info/blfs-support Unsubscribe: See the above information page