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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/post-install-checklist.org | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/docs/post-install-checklist.org b/docs/post-install-checklist.org index fa704b6..97fc0d5 100644 --- a/docs/post-install-checklist.org +++ b/docs/post-install-checklist.org @@ -37,6 +37,35 @@ Trusted devices reconnect on their own after reboot; if one doesn't, check =rfkill list= first (radios should be unblocked — TLP owns radio state and enables bluetooth/wifi at startup per =/etc/tlp.d/01-custom.conf=). +** Brightness control on a machine installed before 2026-08-13 + +Only for a machine whose install predates =configure_backlight_access=. New +installs get the rule automatically, and a re-run of =archsetup= skips the +step because =essential_services= is already marked complete, so an older +machine needs one of these by hand: + +#+begin_src bash +# either drop the rule in directly... +sudo tee /etc/udev/rules.d/90-backlight.rules > /dev/null << 'EOF' +ACTION=="add", SUBSYSTEM=="backlight", RUN+="/usr/bin/chgrp video /sys/class/backlight/%k/brightness" +ACTION=="add", SUBSYSTEM=="backlight", RUN+="/usr/bin/chmod g+w /sys/class/backlight/%k/brightness" +ACTION=="add", SUBSYSTEM=="leds", KERNEL=="*kbd_backlight", RUN+="/usr/bin/chgrp video /sys/class/leds/%k/brightness" +ACTION=="add", SUBSYSTEM=="leds", KERNEL=="*kbd_backlight", RUN+="/usr/bin/chmod g+w /sys/class/leds/%k/brightness" +EOF +sudo udevadm control --reload +sudo udevadm trigger --subsystem-match=backlight --action=add +sudo udevadm trigger --subsystem-match=leds --action=add + +# ...or clear the marker and re-run just that step +sudo rm /var/lib/archsetup/state/essential_services +#+end_src + +Verify: =ls -l /sys/class/backlight/*/brightness= shows group =video= with +=g+w=, and =brightnessctl -c backlight set 70%= succeeds without sudo. + +Only laptops have these devices; on a desktop the rule is inert and nothing +needs doing. + ** Proton Mail Bridge (cmail) The installer's completion message carries the steps; recorded here too so |