I had this wrong. The claim that accelerated graphics works on the firmware
Fedora ships does not survive contact with the device tree.
Fedora does package an sdm845/a630_zap.mbn, which is what led me astray, but
that is the generic Snapdragon 845 zap shader. The C630's node in
sdm850-lenovo-yoga-c630.dts names qcom/sdm850/LENOVO/81JL/qcdxkmsuc850.mbn
specifically — model-signed, present only in the machine's Windows partition.
Until it is supplied the display is unaccelerated.
Also add qcslpi850.mbn and qcvss850.mbn, which were missing entirely, and
attribute the sensor hub to slpi_pas rather than cdsp_pas. The list is now
every firmware-name property in the mainline device tree rather than a
recollection of forum posts, so it should be complete: eight files, not five.
WiFi and Bluetooth are unaffected — ath10k WCN3990 including wlanmdsp.mbn is
genuinely redistributable and genuinely shipped.
Add a section on locating the blobs on an old backup, for the case where
Windows is long gone from the machine.
Only comments changed in config/packages/base.pkgs, so the package set hashes
identically and the staged base stays valid.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XWRjNJMistCy6ngXH5aJLS
Assembles a ready-to-write disk image via Gitea Actions. Mainline has carried
sdm850-lenovo-yoga-c630.dts since 5.5 and Fedora ships it in kernel-core, so
unlike aarch64-laptops/build there is no kernel or GRUB to compile — what is
left is producing an image that boots on firmware which hands Linux no device
tree.
The build runs in an aarch64 container under qemu-user and builds filesystems
from directory trees with mke2fs -d and mcopy rather than mounting loop
devices, so it works on runners that will not hand out /dev/loop-control.
A kernel-install hook writes the devicetree line into each BLS entry; without
it the first `dnf update kernel` would produce an unbootable system.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XWRjNJMistCy6ngXH5aJLS
