====== Lenovo ThinkPad E495 ======

Testowana konfiguracja:
  * CPU: AMD Ryzen 5 3500U @ 2.1GHz
  * GPU: AMD Radeon Vega 8
  * DISPLAY: 14" IPS 1920x1080
  * RAM: 16GB DDR4-2400
  * NVME: 1TB 
  * LAN: Realtek RTL8111GUS
  * WLAN: Intel Wireless-AC 9260
  * AUDIO: Intel HD Audio (CX11880)
  * BLUETOOTH: Intel Wireless-AC 9260

===== Skróty na klawiaturze =====

  * ScrlLck = Fn + K

===== Wymagane pakiety i sterowniki =====

Do ''rc.conf''

<file bash rc.conf>
kld_list="amdgpu amdtemp acpi_ibm acpi_call"
</file>

Z portów potrzebny będzie utilek do sterowania acpi oraz sterowniki drm do karty graficznej i firmware do GPU i Bluetooth:
<code bash>
pkg install acpi_call drm-61-kmod gpu-firmware-amd-kmod-picasso gpu-firmware-amd-kmod-raven iwmbt-firmware
</code>

==== Akceleracja Video ====

Dorzucamy:

<code bash>
pkg install graphics/mesa-gallium-va multimedia/libva-utils
</code>

W Firefox odpalamy ''about:config'' i ustawiamy:

<code bash>
media.hardware-video-decoding.force-enabled=true
</code>

===== Zasilanie =====

Sterowanie procesem ładowania baterii poprzez przykładowy skrypt:

<code bash batctl.sh>
#!/bin/sh

# Usage:
# $0 START_LIMIT STOP_LIMIT

# Sources:
# https://github.com/teleshoes/tpacpi-bat/blob/master/battery_asl
# https://www.reddit.com/r/freebsd/comments/lsygde/acpi_controlling_battery_charging_thresholds_on/
# https://forums.freebsd.org/threads/how-to-set-battery-charging-thresholds-on-laptop.79807/page-2

# Requirements:
# 1. Packages:
#    - acpi_call
# 2. Kernel modules:
#    - acpi_call
#    - acpi_ibm

# ACPI Calls:
# - BCTG - Get battery capacity start charge (1-99 or 0 = default)
# - BCCS - Set battery capacity start charge (1-99 or 0 = default)
# - BCSG - Get battery capacity stop  charge (1-99 or 0 = default)
# - BCSS - Set battery capacity stop  charge (1-99 or 0 = default)

ACPI_PATH="$(sysctl -n dev.acpi_ibm.0.%location | cut -d'=' -f2)"

if [ $# -eq 2 ]; then
  echo "Setting battery capacity start charge to $1%"
  acpi_call -p "$ACPI_PATH.BCCS" -i $1 >> /dev/null
  sleep 1
  echo "Setting battery capacity stop  charge to $2%"
  acpi_call -p "$ACPI_PATH.BCSS" -i $2 >> /dev/null
fi

ACPI_BCTG="$(acpi_call -p "$ACPI_PATH.BCTG" -i 1)"
ACPI_BCSG="$(acpi_call -p "$ACPI_PATH.BCSG" -i 1)"

BAT_START_CHG=$(($ACPI_BCTG - 768))
BAT_STOP_CHG=$(($ACPI_BCSG - 768))
if [ $BAT_STOP_CHG -eq 0 ]; then BAT_STOP_CHG=100; fi

echo "Battery will start charge at: $BAT_START_CHG%"
echo "Battery will stop  charge at: $BAT_STOP_CHG%"
</code>

Włączenie usypiania laptopa poprzez zamknięcie klapy z ekranem, poprzez sysctl:
<code bash>
sysctl hw.acpi.lid_switch_state=S3
</code>