Black desktop background after update / upgrade

[anon89812132]

You tagged nvidia but in the information you shared looks like you have:

@Rulinux

Graphics Processor: Mesa Intel® UHD Graphics 620

And probably that means is related to this

@philm

kernel 5.15.99+ Black/empty screen during boot with i915 Intel gfx. No ways to do anything

Seems there is a regression introduced with 5.15.99 kernel update: [[i915]drm:add_taint_for_CI [i915]] CI tainted:0x9 by intel_gt_init+0xae/0x2d0 [i915] (#8284) · Issues · drm / intel · GitLab ]([i915]drm:add_taint_for_CI [i915]] CI tainted:0x9 by intel_gt_init+0xae/0x2d0 [i915] (#8284) · Issues · drm / i915 / kernel · GitLab). My thoughts here: [Testing Update] 2023-03-11 - Kernels, Mesa 22.3.7, Phosh, LibreOffice 7.4.6 - #31 by philm

or that you have a laptop with hybrid GPUs and hence you have to add the kernel parameter: ibt=off
See here:

Prime driver not working for my dual gpu laptop

probably adding the ibt parameter would help to boot with the nvidia proprietary drivers… open this file: sudo nano /etc/default/grub and inside this line: GRUB_CMDLINE_LINUX_DEFAULT inside the quotes add this parameter: ibt=off dont remove anything, just add it to existing parameters, save the file with ctrl+x, press Y, update grub: sudo update-grub reboot and see if it helped