Backtrace

WARNING: CPU: 2 PID: 4849 at drivers/gpu/drm/i915/display/intel_display.c:7928 verify_connector_state+0x279/0x2a0 [i915]
Modules linked in: v4l2loopback(OE) rfcomm nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) cmac bnep sunrpc nls_utf8 hfsplus uvcvideo intel_rapl_msr btusb intel_rapl_common btrtl videobuf2_vmalloc btbcm btintel bluetooth snd_usb_audio videobuf2_memops x86_pkg_temp_thermal intel_powerclamp wl(POE) videobuf2_v4l2 coretemp ecdh_generic snd_usbmidi_lib videobuf2_common kvm_intel snd_rawmidi ecc videodev mc snd_hda_codec_cirrus snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core
 snd_compress snd_pcm_dmaengine soundwire_cadence kvm snd_hda_codec snd_hda_core ac97_bus snd_hwdep snd_seq apple_mfi_fastcharge snd_seq_device snd_pcm irqbypass snd_timer thunderbolt snd cfg80211 rapl mei_hdcp intel_cstate intel_uncore rfkill iTCO_wdt applesmc intel_pmc_bxt soundcore iTCO_vendor_support pcspkr mei_me lpc_ich mei i2c_i801 i2c_smbus binfmt_misc zram ip_tables i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel sdhci_pci cqhci sdhci cec ghash_clmulni_intel tg3 mmc_core drm video hid_apple hid_appleir fuse
CPU: 2 PID: 4849 Comm: Xorg Tainted: P           OE     5.11.11-200.fc33.x86_64 #1
Hardware name: Apple Inc. Macmini7,1/Mac-35C5E08120C7EEAF, BIOS 244.0.0.0.0 06/14/2019
RIP: 0010:verify_connector_state+0x279/0x2a0 [i915]
Code: c7 c7 28 77 63 c0 e8 fc 1d 63 c8 0f 0b e9 ae fe ff ff e8 f0 1d 63 c8 0f 0b e9 bb fd ff ff 48 c7 c7 f8 76 63 c0 e8 dd 1d 63 c8 <0f> 0b e9 8f fe ff ff e8 d1 1d 63 c8 0f 0b e9 5a fe ff ff e8 c5 1d
RSP: 0018:ffffaee5c27cbbb8 EFLAGS: 00010296
RAX: 000000000000002c RBX: 0000000000000002 RCX: ffff9c88e7318ac8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9c88e7318ac0
RBP: ffff9c86d331d800 R08: 0000000000000000 R09: ffffaee5c27cb9e8
R10: ffffaee5c27cb9e0 R11: ffffffff89b44f08 R12: ffff9c88b96c5780
R13: ffff9c878760d800 R14: ffff9c87874ce800 R15: ffff9c8789039000
FS:  00007f9616e2da80(0000) GS:ffff9c88e7300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed7c55e000 CR3: 0000000158d0a006 CR4: 00000000001706e0
Call Trace:
 intel_atomic_commit_tail+0x933/0x1360 [i915]
 ? flush_workqueue_prep_pwqs+0x128/0x140
 intel_atomic_commit+0x333/0x3b0 [i915]
 drm_atomic_connector_commit_dpms+0xda/0x100 [drm]
 drm_mode_obj_set_property_ioctl+0x159/0x380 [drm]
 ? drm_connector_set_obj_prop+0x90/0x90 [drm]
 drm_connector_property_set_ioctl+0x29/0x30 [drm]
 drm_ioctl_kernel+0x86/0xd0 [drm]
 drm_ioctl+0x20f/0x3a0 [drm]
 ? drm_connector_set_obj_prop+0x90/0x90 [drm]
 ? selinux_file_ioctl+0x122/0x1c0
 __x64_sys_ioctl+0x83/0xb0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f96173b35db
Code: 89 d8 49 8d 3c 1c 48 f7 d8 49 39 c4 72 b5 e8 1c ff ff ff 85 c0 78 ba 4c 89 e0 5b 5d 41 5c c3 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6d b8 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffec8721ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffec8721b10 RCX: 00007f96173b35db
RDX: 00007ffec8721b10 RSI: 00000000c01064ab RDI: 000000000000000e
RBP: 00000000c01064ab R08: 0000560bc9c74338 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000560bc9e07f40
R13: 000000000000000e R14: 0000000000000000 R15: 0000000000000000