Power Limit on 3000 Mobile Series

This laptop: Stellaris 15 - 15.6'' WQHD IPS + AMD Ryzen 9 5900HX, Intel Core i7-11800H + NVIDIA GeForce RTX 3080 + 2x M.2 NVMe SSD + max. 64GB RAM - TUXEDO Stellaris 15 - Gen3 - TUXEDO Computers
Also should be identical to this: XMG NEO 15 Gaming Laptop with RTX 3080 and Ryzen 9 | bestware

My laptop has Ryzen 5900HX and RTX3080 16GB, and the GPU should be Max-P model. According to the product page I should be able to get 150W+15W TGP with GPU. XMG users report that they get 165W from their GPUs on Windows. On Tuxedo’s page they say:

(NVIDIA currently allows a **maximum of 115 W TGP under Linux** . We are already in close contact with NVIDIA to improve the NVIDIA graphics driver as soon as possible and will deliver it via the system updates!)

Why? :(

Runtime D3 status:          Enabled (fine-grained)
Video Memory:               Active

GPU Hardware Support:
 Video Memory Self Refresh: Supported
 Video Memory Off:          Supported

Power Limits:
 Default:                   115000 milliwatts
 GPU Boost:                 4294967295 milliwatts

-----------

nvidia-smi:

Fri Oct 29 17:41:21 2021
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 495.29.05    Driver Version: 495.29.05    CUDA Version: 11.5     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  NVIDIA GeForce ...  On   | 00000000:01:00.0  On |                  N/A |
| N/A   70C    P3   115W /  N/A |   3816MiB / 16102MiB |     87%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A      1389      G   /usr/lib/xorg/Xorg                 53MiB |
|    0   N/A  N/A      2282      G   /usr/lib/xorg/Xorg                290MiB |
|    0   N/A  N/A      2410      G   /usr/bin/gnome-shell              120MiB |
|    0   N/A  N/A      2873      G   ...AAAAAAAAA= --shared-files        3MiB |
|    0   N/A  N/A     77469      G   /opt/telegram/telegram              3MiB |
|    0   N/A  N/A    172204      G   ...mviewer/tv_bin/TeamViewer       25MiB |
|    0   N/A  N/A    205011      G   ./steamwebhelper                    3MiB |
|    0   N/A  N/A    205107      G   ...token=8225511945696457254      105MiB |
|    0   N/A  N/A    247655      G   ...AAAAAAAAA= --shared-files       98MiB |
|    0   N/A  N/A    275993      G   ...position-1.1/bin/launcher       27MiB |
|    0   N/A  N/A    276479      G   /usr/bin/nvidia-settings            3MiB |
|    0   N/A  N/A    276693      G   ...ion-1.1/bin/superposition     3062MiB |
+-----------------------------------------------------------------------------+

Also my “inxi -Fxxz” output:

System:    Kernel: 5.14.15-xanmod1 x86_64 bits: 64 compiler: N/A Desktop: Gnome 3.36.9 wm: gnome-shell dm: GDM3 
           Distro: Ubuntu 20.04.3 LTS (Focal Fossa) 
Machine:   Type: Laptop System: TUXEDO product: TUXEDO Stellaris AMD Gen3 (CZN) v: Standard serial: <filter> 
           Mobo: NB02 model: GMxZGxx v: Standard serial: <filter> UEFI: American Megatrends LLC. v: N.1.21A08 date: 06/23/2021 
Battery:   ID-1: BAT0 charge: 93.5 Wh condition: 93.5/93.5 Wh (100%) volts: 12.8/11.4 model: standard serial: <filter> 
           status: Full 
CPU:       Topology: 8-Core model: AMD Ryzen 9 5900HX with Radeon Graphics bits: 64 type: MT MCP arch: Zen 3 
           L2 cache: 4096 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 105403 
           Speed: 1798 MHz min/max: 1200/3300 MHz Core speeds (MHz): 1: 1615 2: 1915 3: 2092 4: 1397 5: 1236 6: 1325 7: 1618 
           8: 2365 9: 2278 10: 1915 11: 2441 12: 1916 13: 1923 14: 2160 15: 1927 16: 1916 
Graphics:  Device-1: NVIDIA GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB] vendor: Tongfang Hongkong Limited driver: nvidia 
           v: 495.29.05 bus ID: 01:00.0 chip ID: 10de:249c 
           Display: x11 server: X.Org 1.20.11 driver: none compositor: gnome-shell tty: N/A 
           OpenGL: renderer: NVIDIA GeForce RTX 3080 Laptop GPU/PCIe/SSE2 v: 4.6.0 NVIDIA 495.29.05 direct render: Yes 
Audio:     Device-1: Advanced Micro Devices [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor 
           vendor: Tongfang Hongkong Limited driver: N/A bus ID: 06:00.5 chip ID: 1022:15e2 
           Device-2: Advanced Micro Devices [AMD] Family 17h HD Audio vendor: Tongfang Hongkong Limited driver: snd_hda_intel 
           v: kernel bus ID: 06:00.6 chip ID: 1022:15e3 
           Sound Server: ALSA v: k5.14.15-xanmod1 
Network:   Device-1: Realtek RTL8125 2.5GbE vendor: Tongfang Hongkong Limited driver: r8125 v: 9.006.04-NAPI port: e000 
           bus ID: 02:00.0 chip ID: 10ec:8125 
           IF: enp2s0 state: down mac: <filter> 
           Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: e000 bus ID: 04:00.0 chip ID: 8086:2723 
           IF: wlp4s0 state: up mac: <filter> 
           IF-ID-1: docker0 state: down mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 1.29 TiB (142.1%) 
           ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 980 1TB size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> 
           ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 980 1TB size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> 
Partition: ID-1: / size: 915.77 GiB used: 687.09 GiB (75.0%) fs: ext4 dev: /dev/nvme0n1p5 
Sensors:   System Temperatures: cpu: 61.0 C mobo: N/A gpu: nvidia temp: 55 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 491 Uptime: 1d 13h 51m Memory: 62.72 GiB used: 7.45 GiB (11.9%) Init: systemd v: 245 runlevel: 5 
           Compilers: gcc: 9.3.0 alt: 8/9 clang: 10.0.0-4ubuntu1 Shell: bash v: 5.0.17 running in: gnome-terminal inxi: 3.0.38