I upgraded my Leap15.3 box from 5.3.18-59.40-default
to 5.3.18-59.43-default today.

Monitor stayed black, but box was booting fine after some delay.
Via ssh, I could access the logs. The only irregular messages I could
find were from a crash of the radeon driver:

2022-01-26T12:14:39.732506+00:00 localhost kernel: [    3.168424] radeon
0000:09:00.0: still active bo inside vm
2022-01-26T12:14:39.732508+00:00 localhost kernel: [    3.168433] general
protection fault: 0000 [#1] SMP NOPTI
2022-01-26T12:14:39.732509+00:00 localhost kernel: [    3.168435] CPU: 10 PID:
357 Comm: systemd-udevd Not tainted 5.3.18-150300.59.43-default #1 SLE15-SP3
2022-01-26T12:14:39.732509+00:00 localhost kernel: [    3.168437] Hardware
name: Gigabyte Technology Co., Ltd. AX370-Gaming 5/AX370-Gaming 5, BIOS F42e
10/18/2019
2022-01-26T12:14:39.732509+00:00 localhost kernel: [    3.168443] RIP:
0010:rb_first_postorder+0xb/0x30
2022-01-26T12:14:39.732510+00:00 localhost kernel: [    3.168445] Code: d2 74
f5 48 89 d0 48 8b 52 10 48 85 d2 75 f4 48 8b 50 08 48 85 d2 75 eb f3 c3 0f 1f
44 00 00 48 8b 17 48 85 d2 74 17 48 89 d0 <48> 8b 52 10 48 85 d2 75 f4 48 8b 50
08 48 85 d2 75 eb f3 c3 31 c0
2022-01-26T12:14:39.732510+00:00 localhost kernel: [    3.168448] RSP:
0018:ffffb579007c7910 EFLAGS: 00010286
2022-01-26T12:14:39.732512+00:00 localhost kernel: [    3.168450] RAX:
8948530000441f0f RBX: ffff8c958756b800 RCX: 0000000000000007
2022-01-26T12:14:39.732512+00:00 localhost kernel: [    3.168451] RDX:
8948530000441f0f RSI: 0000000000000092 RDI: ffff8c958756b820
2022-01-26T12:14:39.732513+00:00 localhost kernel: [    3.168452] RBP:
0000000000000001 R08: 00000000000003a8 R09: 000000000000003d
2022-01-26T12:14:39.732513+00:00 localhost kernel: [    3.168454] R10:
0000000000000263 R11: ffffb579007c7668 R12: ffff8c9c726a8000
2022-01-26T12:14:39.732513+00:00 localhost kernel: [    3.168456] R13:
ffff8c9c726a8000 R14: ffff8c958756b820 R15: ffff8c958756b800
2022-01-26T12:14:39.732514+00:00 localhost kernel: [    3.168457] FS: 
00007fcde7096980(0000) GS:ffff8c9c7e880000(0000) knlGS:0000000000000000
2022-01-26T12:14:39.732515+00:00 localhost kernel: [    3.168459] CS:  0010 DS:
0000 ES: 0000 CR0: 0000000080050033
2022-01-26T12:14:39.732516+00:00 localhost kernel: [    3.168460] CR2:
0000562eff0496b8 CR3: 00000007f5882000 CR4: 00000000003506e0
2022-01-26T12:14:39.732516+00:00 localhost kernel: [    3.168462] Call Trace:
2022-01-26T12:14:39.732517+00:00 localhost kernel: [    3.168486] 
radeon_vm_fini+0x2e/0x220 [radeon]
2022-01-26T12:14:39.732517+00:00 localhost kernel: [    3.168505] 
radeon_driver_open_kms+0x56/0x1c0 [radeon]
2022-01-26T12:14:39.732517+00:00 localhost kernel: [    3.168517] 
drm_file_alloc+0x1a1/0x240 [drm]
2022-01-26T12:14:39.732518+00:00 localhost kernel: [    3.168528] 
drm_client_init+0xb1/0x140 [drm]
2022-01-26T12:14:39.732519+00:00 localhost kernel: [    3.168537] 
drm_fb_helper_init+0x37/0x40 [drm_kms_helper]
2022-01-26T12:14:39.732520+00:00 localhost kernel: [    3.168556] 
radeon_fbdev_init+0x8e/0x130 [radeon]
2022-01-26T12:14:39.732520+00:00 localhost kernel: [    3.168575] 
radeon_modeset_init+0x46c/0x9e0 [radeon]
2022-01-26T12:14:39.732521+00:00 localhost kernel: [    3.168591] 
radeon_driver_load_kms+0x8a/0x250 [radeon]
2022-01-26T12:14:39.732521+00:00 localhost kernel: [    3.168601] 
drm_dev_register+0x150/0x1e0 [drm]
2022-01-26T12:14:39.732521+00:00 localhost kernel: [    3.168618] 
radeon_pci_probe+0x130/0x1e0 [radeon]
2022-01-26T12:14:39.732523+00:00 localhost kernel: [    3.168621]  ?
__pm_runtime_resume+0x54/0x80
2022-01-26T12:14:39.732524+00:00 localhost kernel: [    3.168625] 
local_pci_probe+0x42/0x90
2022-01-26T12:14:39.732524+00:00 localhost kernel: [    3.168628]  ?
pci_assign_irq+0x27/0x130
2022-01-26T12:14:39.732524+00:00 localhost kernel: [    3.168630] 
pci_device_probe+0x10b/0x1c0
2022-01-26T12:14:39.732525+00:00 localhost kernel: [    3.168633] 
really_probe+0xef/0x430
2022-01-26T12:14:39.732525+00:00 localhost kernel: [    3.168635] 
driver_probe_device+0x110/0x120
2022-01-26T12:14:39.732527+00:00 localhost kernel: [    3.168637] 
device_driver_attach+0x4f/0x60
2022-01-26T12:14:39.732527+00:00 localhost kernel: [    3.168639] 
__driver_attach+0x51/0x130
2022-01-26T12:14:39.732528+00:00 localhost kernel: [    3.168641]  ?
device_driver_attach+0x60/0x60
2022-01-26T12:14:39.732528+00:00 localhost kernel: [    3.168643] 
bus_for_each_dev+0x76/0xc0
2022-01-26T12:14:39.732528+00:00 localhost kernel: [    3.168645] 
bus_add_driver+0x144/0x220
2022-01-26T12:14:39.732529+00:00 localhost kernel: [    3.168647]  ?
0xffffffffc06f4000
2022-01-26T12:14:39.732529+00:00 localhost kernel: [    3.168649] 
driver_register+0x5b/0xf0
2022-01-26T12:14:39.732531+00:00 localhost kernel: [    3.168651]  ?
0xffffffffc06f4000
2022-01-26T12:14:39.732531+00:00 localhost kernel: [    3.168654] 
do_one_initcall+0x46/0x1f4
2022-01-26T12:14:39.732532+00:00 localhost kernel: [    3.168656]  ?
kmem_cache_alloc_trace+0x18f/0x270
2022-01-26T12:14:39.732532+00:00 localhost kernel: [    3.168659]  ?
do_init_module+0x22/0x22f
2022-01-26T12:14:39.732532+00:00 localhost kernel: [    3.168662]  ?
__vunmap+0x1b5/0x210
2022-01-26T12:14:39.732533+00:00 localhost kernel: [    3.168664] 
do_init_module+0x5b/0x22f
2022-01-26T12:14:39.732534+00:00 localhost kernel: [    3.168666] 
load_module+0x1d81/0x2320
2022-01-26T12:14:39.732535+00:00 localhost kernel: [    3.168669]  ?
__do_sys_init_module+0x160/0x190
2022-01-26T12:14:39.732535+00:00 localhost kernel: [    3.168671]  ?
_cond_resched+0x15/0x40
2022-01-26T12:14:39.732535+00:00 localhost kernel: [    3.168673] 
__do_sys_init_module+0x160/0x190
2022-01-26T12:14:39.732536+00:00 localhost kernel: [    3.168676] 
do_syscall_64+0x5b/0x1e0
2022-01-26T12:14:39.732536+00:00 localhost kernel: [    3.168678] 
entry_SYSCALL_64_after_hwframe+0x44/0xa9
2022-01-26T12:14:39.732536+00:00 localhost kernel: [    3.168680] RIP:
0033:0x7fcde5e916da
 2022-01-26T12:14:39.732539+00:00 localhost kernel: [    3.168682] Code: 48 8b
0d b9 c7 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f
1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d
86 c7 2c 00 f7 d8 64 89 01 48
2022-01-26T12:14:39.732540+00:00 localhost kernel: [    3.168685] RSP:
002b:00007ffcf45aa2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
2022-01-26T12:14:39.732540+00:00 localhost kernel: [    3.168687] RAX:
ffffffffffffffda RBX: 0000562eff039820 RCX: 00007fcde5e916da
2022-01-26T12:14:39.732540+00:00 localhost kernel: [    3.168689] RDX:
00007fcde67f179d RSI: 00000000002bcf00 RDI: 0000562eff4ade70
2022-01-26T12:14:39.732541+00:00 localhost kernel: [    3.168690] RBP:
00007fcde67f179d R08: 0000000000000002 R09: 0000000000000000
2022-01-26T12:14:39.732541+00:00 localhost kernel: [    3.168692] R10:
0000000000000003 R11: 0000000000000246 R12: 0000562eff4ade70
2022-01-26T12:14:39.732543+00:00 localhost kernel: [    3.168693] R13:
0000562eff035f70 R14: 0000562eff00be10 R15: 0000562eff037af0
2022-01-26T12:14:39.732543+00:00 localhost kernel: [    3.168695] Modules
linked in: hid_generic usbhid sd_mod t10_pi radeon(+) i2c_algo_bit
drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core ttm
xhci_pci xhci_hcd drm ahci libahci libata usbcore crc32c_intel wmi sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod msr
2022-01-26T12:14:39.732544+00:00 localhost kernel: [    3.168705] Supported:
Yes
2022-01-26T12:14:39.732544+00:00 localhost kernel: [    3.168707] ---[ end
trace b2aadc042ce7a558 ]---
2022-01-26T12:14:39.732544+00:00 localhost kernel: [    3.168709] RIP:
0010:rb_first_postorder+0xb/0x30
2022-01-26T12:14:39.732545+00:00 localhost kernel: [    3.168711] Code: d2 74
f5 48 89 d0 48 8b 52 10 48 85 d2 75 f4 48 8b 50 08 48 85 d2 75 eb f3 c3 0f 1f
44 00 00 48 8b 17 48 85 d2 74 17 48 89 d0 <48> 8b 52 10 48 85 d2 75 f4 48 8b 50
08 48 85 d2 75 eb f3 c3 31 c0
2022-01-26T12:14:39.732547+00:00 localhost kernel: [    3.168714] RSP:
0018:ffffb579007c7910 EFLAGS: 00010286
2022-01-26T12:14:39.732547+00:00 localhost kernel: [    3.168716] RAX:
8948530000441f0f RBX: ffff8c958756b800 RCX: 0000000000000007
2022-01-26T12:14:39.732548+00:00 localhost kernel: [    3.168717] RDX:
8948530000441f0f RSI: 0000000000000092 RDI: ffff8c958756b820
2022-01-26T12:14:39.732548+00:00 localhost kernel: [    3.168719] RBP:
0000000000000001 R08: 00000000000003a8 R09: 000000000000003d
2022-01-26T12:14:39.732548+00:00 localhost kernel: [    3.168720] R10:
0000000000000263 R11: ffffb579007c7668 R12: ffff8c9c726a8000
2022-01-26T12:14:39.732549+00:00 localhost kernel: [    3.168722] R13:
ffff8c9c726a8000 R14: ffff8c958756b820 R15: ffff8c958756b800
2022-01-26T12:14:39.732550+00:00 localhost kernel: [    3.168724] FS: 
00007fcde7096980(0000) GS:ffff8c9c7e880000(0000) knlGS:0000000000000000
2022-01-26T12:14:39.732551+00:00 localhost kernel: [    3.168725] CS:  0010 DS:
0000 ES: 0000 CR0: 0000000080050033
2022-01-26T12:14:39.732551+00:00 localhost kernel: [    3.168727] CR2:
0000562eff0496b8 CR3: 00000007f5882000 CR4: 00000000003506e0


This crash is new, introduced by the latest update, and repeatable.