134 lines
3.8 KiB
Bash
134 lines
3.8 KiB
Bash
#!/bin/sh
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# Clawdie operator USB live GPU setup.
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# Detect display hardware and load a conservative KMS module before SDDM.
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# Prefer integrated/open drivers so hybrid laptops boot the broadest path first;
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# keep NVIDIA proprietary loading opt-in by requiring an installed nvidia.ko.
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# PROVIDE: clawdie_live_gpu
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# REQUIRE: FILESYSTEMS devfs
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# BEFORE: sddm
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# KEYWORD: nojail
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. /etc/rc.subr
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name="clawdie_live_gpu"
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rcvar="clawdie_live_gpu_enable"
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start_cmd="clawdie_live_gpu_start"
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LOG_FILE="/var/log/clawdie-live-gpu.log"
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clawdie_live_gpu_log()
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{
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echo "$(date '+%H:%M:%S') $*" >> "$LOG_FILE" 2>/dev/null || true
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}
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clawdie_live_gpu_display_blocks()
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{
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pciconf -lv 2>/dev/null | awk '
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BEGIN { RS = ""; IGNORECASE = 1 }
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/class=0x03/ { print }
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'
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}
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clawdie_live_gpu_has_pci_vendor()
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{
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_blocks="$1"
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_vendor_id="$2"
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# Match the numeric PCI vendor on display-class blocks only. Do not use
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# broad text matches like "Intel" here: unrelated vendor strings or
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# subdevices can make an AMD system select i915kms and fail before SDDM.
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echo "$_blocks" | awk -v vendor="$_vendor_id" '
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BEGIN { RS = ""; IGNORECASE = 1; found = 0 }
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$0 ~ ("(^|[[:space:]])vendor=" vendor "([[:space:]]|$)") { found = 1 }
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END { exit(found ? 0 : 1) }
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'
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}
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clawdie_live_gpu_select_modules()
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{
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_blocks="$1"
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# Hybrid laptops often expose Intel or AMD integrated graphics plus a
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# discrete NVIDIA GPU. Prefer the integrated/open KMS path for live boot.
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if clawdie_live_gpu_has_pci_vendor "$_blocks" "0x1002"; then
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# amdgpu covers modern AMD; radeonkms is a best-effort fallback for
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# older Radeon hardware only if amdgpu does not load.
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echo "amdgpu radeonkms"
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return 0
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fi
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if clawdie_live_gpu_has_pci_vendor "$_blocks" "0x8086"; then
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echo "i915kms"
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return 0
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fi
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if clawdie_live_gpu_has_pci_vendor "$_blocks" "0x15ad"; then
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echo "vmwgfx"
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return 0
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fi
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if clawdie_live_gpu_has_pci_vendor "$_blocks" "0x10de"; then
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# NVIDIA packages are bundled in the offline repo, but the live image
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# does not install a branch-specific NVIDIA kmod by default because the
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# 390/470/current branches conflict. Only load NVIDIA if an operator or
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# future build profile has installed a concrete branch into the rootfs.
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if [ -e /boot/modules/nvidia.ko ]; then
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echo "nvidia-modeset nvidia"
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fi
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return 0
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fi
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return 0
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}
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clawdie_live_gpu_load_module()
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{
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_module="$1"
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if [ "$_module" = "radeonkms" ] && kldstat -n amdgpu.ko >/dev/null 2>&1; then
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clawdie_live_gpu_log "skipping radeonkms because amdgpu is already loaded"
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return 0
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fi
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if kldstat -n "${_module}.ko" >/dev/null 2>&1; then
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clawdie_live_gpu_log "module already loaded: ${_module}"
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return 0
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fi
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if kldload "$_module" >/dev/null 2>&1; then
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clawdie_live_gpu_log "loaded module: ${_module}"
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return 0
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fi
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clawdie_live_gpu_log "WARN: failed to load module: ${_module}"
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return 1
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}
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clawdie_live_gpu_start()
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{
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_blocks=$(clawdie_live_gpu_display_blocks)
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if [ -z "$_blocks" ]; then
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clawdie_live_gpu_log "no display-class PCI device detected; using scfb/vesa fallback"
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return 0
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fi
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clawdie_live_gpu_log "detected display devices: $(echo "$_blocks" | grep -i '^vgapci' | tr '\n' ' ')"
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_modules=$(clawdie_live_gpu_select_modules "$_blocks")
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if [ -z "$_modules" ]; then
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clawdie_live_gpu_log "no live KMS module selected; using scfb/vesa fallback"
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return 0
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fi
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clawdie_live_gpu_log "selected live KMS modules: ${_modules}"
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for _module in $_modules; do
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clawdie_live_gpu_load_module "$_module" || true
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done
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return 0
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}
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load_rc_config "$name"
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: ${clawdie_live_gpu_enable:="NO"}
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run_rc_command "$1"
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