Hello !
Since the last 10 days, i started to experience random crashes :
I updated BIOS, but nothing changed.
Here are my specs :
Software :
Manjaro 21.1.0
Testing branch
KDE Plasma 5.22.3
Noyau 5.10.50-1
X11
Hardware :
Ryzen 7 PRO 4750U
16 go RAM
Vega 7
If that doesn’t help, please read this first:
After you’ve read all of the above, backup all your data and reinstall with all the knowledge you now have due to the other problems you’ve had so far…
Thanks for the answer !
I switched to the stable branch, and was already on a LTS kernel…
So no other solution than reinstalling ? 
TBH: reading the N00b tutorial and doing a clean install without trying to use weird themes, applications from source, and applying the kernel parameters from your other posts would be the prudent thing to do…
KISS! (Keep It Simply Stupid)
and before you post your next question, please read this too:
P.S. If you enter a bit more details in your profile, we can also see which Desktop Environment you’re using, which CPU/GPU or Kernel, … you have without typing it every time
Bonne chance et désolé!
Well i reinstalled Manjaro, and the bug is still here 
System:
Kernel: 5.10.47-1-rt46-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64
root=UUID=acefd849-e868-4199-ae2d-b21eece66296 rw quiet apparmor=1
security=apparmor udev.log_priority=3
Desktop: KDE Plasma 5.22.3 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 20Y1CTO1WW v: ThinkPad P14s Gen 1
serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: LENOVO model: 20Y1CTO1WW serial: <filter> UEFI: LENOVO
v: R1BET65W(1.34 ) date: 06/17/2021
Battery:
ID-1: BAT0 charge: 48.1 Wh (93.4%) condition: 51.5/50.5 Wh (101.9%)
volts: 12.6 min: 11.6 model: LGC 5B10W139 type: Li-poly serial: <filter>
status: Discharging cycles: 57
Device-1: hidpp_battery_0 model: Logitech G603 Wireless Gaming Mouse
serial: <filter> charge: 100% (should be ignored) rechargeable: yes
status: Discharging
Memory:
RAM: total: 13.45 GiB used: 2.84 GiB (21.1%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: 8-Core model: AMD Ryzen 7 PRO 4750U with Radeon Graphics bits: 64
type: MT MCP arch: Zen 2 family: 17 (23) model-id: 60 (96) stepping: 1
microcode: 8600106 cache: L2: 4 MiB bogomips: 54319
Speed: 1470 MHz min/max: 1400/1700 MHz boost: enabled Core speeds (MHz):
1: 1470 2: 2111 3: 1257 4: 1287 5: 1811 6: 1929 7: 1288 8: 1267 9: 1755
10: 1457 11: 1652 12: 1802 13: 1697 14: 1973 15: 1271 16: 1327
Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy
constant_tsc cpb cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total cqm_occup_llc
cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c flushbyasid
fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb ibrs ibs irperf lahf_lm
lbrv lm mba mca mce misalignsse mmx mmxext monitor movbe msr mtrr mwaitx
nonstop_tsc nopl npt nrip_save nx osvw overflow_recov pae pat pausefilter
pclmulqdq pdpe1gb perfctr_core perfctr_llc perfctr_nb pfthreshold pge pni
popcnt pse pse36 rdpid rdpru rdrand rdseed rdt_a rdtscp rep_good sep sha_ni
skinit smap smca smep ssbd sse sse2 sse4_1 sse4_2 sse4a ssse3 stibp succor
svm svm_lock syscall tce topoext tsc tsc_scale umip v_vmsave_vmload vgif
vmcb_clean vme vmmcall wbnoinvd wdt xgetbv1 xsave xsavec xsaveerptr xsaveopt
xsaves
Vulnerabilities: Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, IBRS_FW,
STIBP: conditional, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: AMD Renoir vendor: Lenovo driver: amdgpu v: kernel bus-ID: 07:00.0
chip-ID: 1002:1636 class-ID: 0300
Device-2: Chicony Integrated Camera type: USB driver: uvcvideo bus-ID: 2-2:2
chip-ID: 04f2:b6d0 class-ID: fe01 serial: <filter>
Display: x11 server: X.Org 1.20.11 compositor: kwin_x11 driver:
loaded: amdgpu,ati unloaded: modesetting alternate: fbdev,vesa
display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: eDP res: 1920x1080 hz: 60 dpi: 158 size: 309x174mm (12.2x6.9")
diag: 355mm (14")
OpenGL: renderer: AMD RENOIR (DRM 3.40.0 5.10.47-1-rt46-MANJARO LLVM 12.0.1)
v: 4.6 Mesa 21.1.5 direct render: Yes
Audio:
Device-1: AMD vendor: Lenovo driver: snd_hda_intel v: kernel bus-ID: 07:00.1
chip-ID: 1002:1637 class-ID: 0403
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor vendor: Lenovo
driver: snd_rn_pci_acp3x v: kernel alternate: snd_pci_acp3x bus-ID: 07:00.5
chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel bus-ID: 07:00.6 chip-ID: 1022:15e3 class-ID: 0403
Sound Server-1: ALSA v: k5.10.47-1-rt46-MANJARO running: yes
Sound Server-2: JACK v: 0.125.0 running: no
Sound Server-3: PulseAudio v: 14.2 running: yes
Sound Server-4: PipeWire v: 0.3.32 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 3400 bus-ID: 02:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: enp2s0f0 state: down mac: <filter>
Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: 3000
bus-ID: 03:00.0 chip-ID: 8086:2723 class-ID: 0280
IF: wlp3s0 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: noprefixroute scope: link
Device-3: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 2000 bus-ID: 05:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: enp5s0 state: down mac: <filter>
WAN IP: <filter>
Bluetooth:
Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8 bus-ID: 6-4:2
chip-ID: 8087:0029 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 3 state: up address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 476.94 GiB used: 53.63 GiB (11.2%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: SK Hynix model: HFS512GD9TNI-L2B0B
size: 476.94 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
lanes: 4 type: SSD serial: <filter> rev: 11720C10 temp: 33.9 C scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 476.64 GiB size: 468.09 GiB (98.21%)
used: 53.63 GiB (11.5%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
label: N/A uuid: acefd849-e868-4199-ae2d-b21eece66296
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 288 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
uuid: 2626-7A44
Swap:
Alert: No swap data was found.
Unmounted:
Message: No unmounted partitions found.
USB:
Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 1 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 2-2:2 info: Chicony Integrated Camera type: Video driver: uvcvideo
interfaces: 5 rev: 2.0 speed: 480 Mb/s power: 500mA chip-ID: 04f2:b6d0
class-ID: fe01 serial: <filter>
Hub-3: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.0 speed: 5 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-4: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 4-2:2 info: Logitech USB Receiver type: Keyboard,Mouse,HID
driver: logitech-djreceiver,usbhid interfaces: 3 rev: 2.0 speed: 12 Mb/s
power: 98mA chip-ID: 046d:c539 class-ID: 0300
Hub-5: 5-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-6: 6-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 6-4:2 info: Intel AX200 Bluetooth type: Bluetooth driver: btusb
interfaces: 2 rev: 2.0 speed: 12 Mb/s power: 100mA chip-ID: 8087:0029
class-ID: e001
Hub-7: 7-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
System Temperatures: cpu: 46.1 C mobo: 0.0 C gpu: amdgpu temp: 45.0 C
Fan Speeds (RPM): cpu: 0
Info:
Processes: 320 Uptime: 11m wakeups: 5 Init: systemd v: 248 tool: systemctl
Compilers: gcc: N/A Packages: pacman: 1199 lib: 326 flatpak: 0 Shell: Bash
v: 5.1.8 running-in: yakuake inxi: 3.3.06Please read this:
After a freeze of crash:
give the output of:
journalctl --system --boot=-1 --priority=3 | tail --lines=50