I'm getting the same issue, and I don't have nVidia graphics, mine is Intel embedded i5 core
It has been running happily for about 2 months and out of the blue today is no longer working, I run the latest stable, v. 8.2.4 I think
The backtrace looks like this:
[ 665.092067] Call Trace:
[ 665.092076] ? dump_stack+0x5c/0x78
[ 665.092080] ? __warn+0xb4/0xd0
[ 665.092083] ? warn_slowpath_fmt+0x46/0x50
[ 665.092088] ? intel_atomic_commit_tail+0xeab/0xeb0
[ 665.092095] ? __switch_to+0x218/0x3f0
[ 665.092100] ? wake_atomic_t_function+0x50/0x50
[ 665.092104] ? intel_atomic_commit+0x373/0x440
[ 665.092109] ? restore_fbdev_mode+0x146/0x290
[ 665.092113] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70
[ 665.092116] ? drm_fb_helper_set_par+0x24/0x50
[ 665.092121] ? intel_fbdev_set_par+0xe/0x60
[ 665.092126] ? fb_set_var+0x1fb/0x3e0
[ 665.092131] ? __slab_free+0xa4/0x330
[ 665.092135] ? fbcon_blank+0x2b3/0x2f0
[ 665.092143] ? do_unblank_screen+0xd2/0x1a0
[ 665.092148] ? vt_ioctl+0x4c4/0x1210
[ 665.092153] ? tty_ioctl+0x312/0xbf0
[ 665.092159] ? vga_arb_release+0xbf/0xd0
[ 665.092164] ? dput+0xc3/0x250
[ 665.092169] ? do_vfs_ioctl+0x8a/0x5c0
[ 665.092173] ? task_work_run+0x79/0xa0
[ 665.092177] ? SyS_ioctl+0x36/0x70
[ 665.092182] ? entry_SYSCALL_64_fastpath+0x1a/0xa9
[ 665.092184] ---[ end trace 777b3d813ed90dae ]---
[ 675.279210] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:31:pipe A] flip_done timed out
[ 685.306386] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:31:pipe A] flip_done timed out
[ 695.333463] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:31:pipe A] flip_done timed out
[ 705.360547] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:31:pipe A] flip_done timed out
[ 705.828041] kodi.bin[1119]: segfault at 30 ip 0000000000000030 sp 00007ffdcecd6ad8 error 14 in kodi.bin[400000+14a8000]
[ 717.734332] [drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:31:pipe A] flip_done timed out
