Linux Mint não desliga

Antonioleal

System:
Host: narciso-P35-DS3 Kernel: 5.4.0-42-generic x86_64 bits: 64
compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.6.6 wm: muffin 4.6.2
dm: LightDM 1.30.0 Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal
Machine:
Type: Desktop Mobo: Gigabyte model: P35-DS3
serial: BIOS: Award v: F10 date: 11/16/2007
CPU:
Topology: Dual Core model: Pentium E5700 bits: 64 type: MCP arch: Penryn
rev: A L2 cache: 2048 KiB
flags: lm nx pae sse sse2 sse3 ssse3 bogomips: 12000
Speed: 1373 MHz min/max: N/A Core speeds (MHz): 1: 1373 2: 1383
Graphics:
Device-1: NVIDIA NV44 [GeForce 6200 LE] vendor: XFX Pine driver: nouveau
v: kernel bus ID: 01:00.0 chip ID: 10de:0163
Display: x11 server: X.Org 1.20.8 driver: nouveau
unloaded: fbdev,modesetting,vesa resolution: 1366x768~60Hz
OpenGL: renderer: NV44 v: 2.1 Mesa 20.0.8 direct render: Yes
Audio:
Device-1: Intel 82801I HD Audio vendor: Gigabyte driver: snd_hda_intel
v: kernel bus ID: 00:1b.0 chip ID: 8086:293e
Sound Server: ALSA v: k5.4.0-42-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Gigabyte driver: r8169 v: kernel port: d000 bus ID: 04:00.0
chip ID: 10ec:8168
IF: enp4s0 state: up speed: 100 Mbps duplex: full mac: 00:1d:7d:8b:d4:d7
Drives:
Local Storage: total: 149.01 GiB used: 24.65 GiB (16.5%)
ID-1: /dev/sda vendor: Western Digital model: WD1600AAJS-75PSA0
size: 149.01 GiB speed: 3.0 Gb/s serial: WD-WMAP98382283 rev: 6H05
scheme: MBR
Partition:
ID-1: / size: 145.18 GiB used: 24.65 GiB (17.0%) fs: ext4 dev: /dev/sda5
Sensors:
System Temperatures: cpu: 40.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 201 Uptime: 24m Memory: 2.92 GiB used: 1.15 GiB (39.4%)
Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash
v: 5.0.17 running in: gnome-terminal inxi: 3.0.38

Francis

Experimenta esse comando e veja oque acontece.
sudo telinit 0