Sorry for the late reply. I had some spare time and I've installed bookworm 25.5.1 Time CPU load %cpu %sys %usr %nice %io %irq Tcpu C.St. 20:38:51 1296 MHz 0.41 7% 0% 2% 0% 3% 0% 58.1 °C 0/7 20:38:56 480 MHz 0.38 0% 0% 0% 0% 0% 0% 54.4 °C 0/7 20:39:01 480 MHz 0.35 1% 0% 0% 0% 0% 0% 59.8 °C 0/7 20:39:06 480 MHz 0.32 0% 0% 0% 0% 0% 0% 54.8 °C 0/7 20:39:11 480 MHz 0.29 0% 0% 0% 0% 0% 0% 56.4 °C 0/7 20:39:16 480 MHz 0.27 0% 0% 0% 0% 0% 0% 55.5 °C 0/7 20:39:21 480 MHz 0.25 0% 0% 0% 0% 0% 0% 57.6 °C 0/7 20:39:27 480 MHz 0.23 0% 0% 0% 0% 0% 0% 56.2 °C 0/7 20:39:32 480 MHz 0.21 0% 0% 0% 0% 0% 0% 54.2 °C 0/7 20:39:37 480 MHz 0.19 0% 0% 0% 0% 0% 0% 56.1 °C 0/7 20:39:42 480 MHz 0.18 0% 0% 0% 0% 0% 0% 54.1 °C 0/7 20:39:47 480 MHz 0.16 0% 0% 0% 0% 0% 0% 58.0 °C 0/7 20:39:52 480 MHz 0.15 0% 0% 0% 0% 0% 0% 57.0 °C 0/7^C Actually you had some difference in temp between bookworm and bullseye

Hi, moved to off-topic since nothing in particular is covered.

Hii this is my first post

Never mind, I found this old image with built-in desktop environment and I was able to upgrade it to current. https://users.armbian.com/jock/web/rk322x/armbian/beta/Armbian-unofficial_24.11.0-trunk_Rk322x-box_noble_current_6.6.56_xfce_desktop.img.xz

The display was working fine on 6.12, but has now stopped. I have tried the other kernels, the vendor has issues with passwords as well for some strange reason its not recognising the set password. I am going to look into the kernel, and kernel patches if I can work out what I am doing, but Armbian with its three fixed kernel versions is a nightmare and always has been. I have had exactly the same issue with BananaPi-M3. The fact Armbian will not build old versions is stupid. I can select older kernels using armbian-config and these work. If armbian/build would allow the user to select the same kernel images as armbian-config can this would go some way to solving this issue.