After updating to F29 I get a hard lock on mythfrontend when I try to start playing back a recording. Looking through the log I saw this: [14099.229428] BUG: unable to handle kernel NULL pointer dereference at 0000000000000080 [14099.229434] PGD 16f53f067 P4D 16f53f067 PUD 22270b067 PMD 0 [14099.229440] Oops: 0000 [#1] SMP NOPTI [14099.229443] CPU: 0 PID: 11830 Comm: mythfrontend Tainted: P OE 4.19.3-300.fc29.x86_64 #1 [14099.229446] Hardware name: Gigabyte Technology Co., Ltd. GA-970A-UD3/GA-970A-UD3, BIOS F7 10/22/2012 [14099.229473] RIP: 0010:drm_lease_owner+0xd/0x20 [drm] [14099.229476] Code: 83 c4 18 5b 5d c3 b8 ea ff ff ff eb e2 b8 ed ff ff ff eb db e8 b4 a9 78 e1 0f 1f 40 00 0f 1f 44 00 00 48 89 f8 eb 03 48 89 d0 <48> 8b 90 80 00 00 00 48 85 d2 75 f1 c3 66 0f 1f 44 00 00 0f 1f 44 [14099.229478] RSP: 0018:ffffb1b884d07b90 EFLAGS: 00010202 [14099.229480] RAX: 0000000000000000 RBX: ffff9c2996757200 RCX: 00000000c0000100 [14099.229482] RDX: ffff9c29967f9dc0 RSI: 0000000000000000 RDI: 0000000000000000 [14099.229484] RBP: ffff9c2b4a2b6000 R08: ffff9c2b67a219a0 R09: 0000000000000000 [14099.229485] R10: 0000000000000000 R11: 0000000000000002 R12: ffff9c2b4a2b6088 [14099.229487] R13: 0000000000000000 R14: ffff9c29967572c8 R15: dead000000000100 [14099.229489] FS: 00007fa3a3662e80(0000) GS:ffff9c2b67a00000(0000) knlGS:0000000000000000 [14099.229491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [14099.229493] CR2: 0000000000000080 CR3: 00000001e9d6e000 CR4: 00000000000006f0 # uname -r 4.19.3-300.fc29.x86_64 https://www.dropbox.com/s/5to6isnmksxpod0/nvidia-bug-report.log.gz Not sure if I should report this as a kernel bug on Fedora or a Nvidia driver bug on RPM Fusion... Thanks, Richard