Hi, I have a Tuxedo Aura 15 and after installing Debian bullseye, I see during boot a few acpi bios error: could not resolve symbol messages. See https://nc.d5x.de/s/3BYL8Fg88Xb5GRJ for a "screenshot". Does anybody understand what these messages want to tell me (so far I did not see anything not working). Any hint is welcome. Thanks Rainer Full machine data: rd@aura:~$ inxi -F System: Host: aura Kernel: 5.9.0-5-amd64 x86_64 bits: 64 Console: tty 3 Distro: Debian GNU/Linux bullseye/sid Machine: Type: Laptop System: TUXEDO product: TUXEDO Aura 15 Gen1 v: N/A serial: Mobo: TUXEDO s model: AURA1501 serial: UEFI: INSYDE v: 1.07.03RTR2 date: 11/13/2020 Battery: ID-1: BAT0 charge: 20.4 Wh condition: 50.3/48.3 Wh (104%) CPU: Info: 8-Core model: AMD Ryzen 7 4700U with Radeon Graphics bits: 64 type: MCP L2 cache: 4 MiB Speed: 1398 MHz min/max: 1400/2000 MHz Core speeds (MHz): 1: 1398 2: 1396 3: 1397 4: 1397 5: 1401 6: 1399 7: 1397 8: 1396 Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Renoir driver: amdgpu v: kernel Device-2: Acer BisonCam NB Pro type: USB driver: uvcvideo Display: server: X.org 1.20.10 driver: amdgpu,ati unloaded: fbdev,modesetting,vesa tty: 293x80 Message: Advanced graphics data unavailable in console. Try -G -- display Audio: Device-1: Advanced Micro Devices [AMD/ATI] driver: snd_hda_intel Device-2: Advanced Micro Devices [AMD] Raven/Raven2/FireFlight/ Renoir Audio Processor driver: N/A Device-3: Advanced Micro Devices [AMD] Family 17h HD Audio driver: snd_hda_intel Sound Server: ALSA v: k5.9.0-5-amd64 Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 IF: enp2s0 state: down mac: 80:fa:5b:8a:20:da Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi IF: wlo1 state: up mac: 78:2b:46:2a:e2:48 Drives: Local Storage: total: 465.76 GiB used: 6.07 GiB (1.3%) ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 500GB size: 465.76 GiB Partition: ID-1: / size: 447.02 GiB used: 5.94 GiB (1.3%) fs: btrfs dev: /dev/ dm-0 ID-2: /boot size: 473.5 MiB used: 124.1 MiB (26.2%) fs: ext2 dev: / dev/nvme0n1p2 ID-3: /boot/efi size: 511 MiB used: 8.4 MiB (1.7%) fs: vfat dev: / dev/nvme0n1p1 Swap: ID-1: swap-1 type: partition size: 17.73 GiB used: 0 KiB (0.0%) dev: /dev/dm-1 Sensors: System Temperatures: cpu: 24.1 C mobo: N/A gpu: amdgpu temp: 23.0 C Fan Speeds (RPM): N/A Info: Processes: 283 Uptime: 8h 24m Memory: 30.81 GiB used: 1.35 GiB (4.4%) Init: systemd runlevel: 5 Shell: Bash inxi: 3.2.01 rd@aura:~$ -- Rainer Dorsch http://bokomoko.de/