acpi_fakekeyd: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/sbin/acpi_fakekeyd - from package: acpi-fakekey

You may install the required package with command apt-get install {package}

Error in other languages:
acpi_fakekeyd: bevel nie gevind nie
acpi_fakekeyd: comandă negăsită
acpi_fakekeyd: comando não encontrado
acpi_fakekeyd: commande introuvable
acpi_fakekeyd: command not found
acpi_fakekeyd: käsku ei ole
acpi_fakekeyd: không tìm thấy lệnh
acpi_fakekeyd: komanda nerasta
acpi_fakekeyd: Kommando nicht gefunden.
acpi_fakekeyd: kommandot finns inte
acpi_fakekeyd: komut yok
acpi_fakekeyd: nie znaleziono polecenia
acpi_fakekeyd: níor aimsíodh an t-ordú
acpi_fakekeyd: no se encontró la orden
acpi_fakekeyd: no s'ha trobat l'ordre
acpi_fakekeyd: opdracht niet gevonden
acpi_fakekeyd: parancs nem található
acpi_fakekeyd: perintah tidak ditemukan
acpi_fakekeyd: príkaz nenájdený
acpi_fakekeyd: příkaz nenalezen
acpi_fakekeyd: команда не найдена
acpi_fakekeyd: командата не е открита
acpi_fakekeyd: 命令找不到
acpi_fakekeyd: コマンドが見つかりません