![]() ![]() black screen failures caused by HP laptop motherboard power problem 152) HP. Thanks in advance for any help or suggestions. Failure symptoms related with display card are: alarm sound (not all. These combinations may differ from manufacturer to manufacturer. Fn+F11 and Fn+F12 keys used on my laptop to adjust brightness. I noticed in the output produced by inxi -Gx it displays my NVIDIA driver as N/A, on a previous install I had attempted manual installation of drivers from NVIDIA which claimed there was already a driver in use. Press the Fn button + the brightness up/down function key and verify that the display brightness has changed. I have tried both Gnome (Wayland) and DWM (Xorg) and experienced the same issue.ĭuring installation I selected proprietary drivers, without selecting proprietary drivers Ubuntu crashes soon after boot. ![]() Unloaded: fbdev,modesetting,nouveau,radeon,vesa gpu: amdgpu Up: 29m Mem: 2266.8/7277.3 MiB (31.1%) Storage: 476.94 GiB (3.2% used)ĭevice-1: NVIDIA GA107M vendor: Hewlett-Packardĭevice-2: AMD Cezanne vendor: Hewlett-Packard driver: amdgpu v: kernelĭisplay: wayland server: X.Org v: 1.22.1.1 with: Xwayland v: 22.1.1Ĭompositor: gnome-shell v: 42.4 driver: X: loaded: amdgpu,ati,nvidia Inxi returns: CPU: 6-core AMD Ryzen 5 5600H with Radeon Graphics (-MT MCP-) I am running Ubuntu Jammy Jellyfish, and after updating the kernel to 5.19 still experience the same issue. The screen was bright when I was running Windows 11. The screen set to the value 255 is dim, it is hard to see in a normal room. increasing the brightness results in a value of 255.decreasing the brightness results in a value of 2.Upon checking /sys/class/backlight/amdgpu_bl0/brightness the values change as expected: The brightness range I am able to use is dim, it is not simply switched controls. decreasing the brightness increases the screen brightness slightly.increasing the brightness decreases the screen brightness slightly.Ubuntu Jammy Jellyfish Backlight Issues - HP Laptop ![]()
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