Backtrace

WARNING: CPU: 2 PID: 4317 at drivers/gpu/drm/drm_vblank.c:1102 drm_wait_one_vblank+0x18b/0x1a0 [drm]
Modules linked in: rfcomm ccm nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_soc_skl snd_soc_hdac_hda mei_hdcp snd_hda_ext_core snd_soc_skl_ipc intel_rapl_msr iTCO_wdt snd_soc_sst_ipc iTCO_vendor_support kvm snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core iwlmvm snd_hda_codec_realtek snd_compress snd_hda_codec_generic ac97_bus irqbypass snd_pcm_dmaengine mac80211 snd_hda_intel snd_hda_codec dell_laptop ledtrig_audio crct10dif_pclmul dell_smm_hwmon snd_hda_core snd_hwdep snd_seq libarc4
 crc32_pclmul btusb iwlwifi btrtl snd_seq_device btbcm btintel snd_pcm bluetooth ghash_clmulni_intel intel_cstate intel_uncore intel_rapl_perf uvcvideo dell_wmi cfg80211 dell_smbios dcdbas dell_wmi_descriptor wmi_bmof videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_timer videobuf2_common snd hid_sensor_rotation hid_sensor_magn_3d hid_sensor_accel_3d hid_sensor_gyro_3d hid_sensor_incl_3d videodev ecdh_generic soundcore hid_sensor_trigger joydev rfkill i2c_i801 ecc mei_me hid_sensor_iio_common mc industrialio_triggered_buffer intel_hid kfifo_buf mei intel_xhci_usb_role_switch industrialio idma64 processor_thermal_device roles intel_lpss_pci intel_rapl_common cros_ec_ishtp intel_soc_dts_iosf cros_ec_core intel_pch_thermal intel_lpss intel_vbtn sparse_keymap soc_button_array int3403_thermal int3402_thermal acpi_pad int340x_thermal_zone int3400_thermal acpi_thermal_rel ip_tables hid_sensor_hub intel_ishtp_loader intel_ishtp_hid i915 i2c_algo_bit drm_kms_helper crc32c_intel drm
 serio_raw intel_ish_ipc i2c_hid intel_ishtp wmi pinctrl_sunrisepoint video pinctrl_intel hid_multitouch fuse
CPU: 2 PID: 4317 Comm: kworker/2:0 Not tainted 5.3.7-301.fc31.x86_64 #1
Hardware name: Dell Inc. Inspiron 13-7378/0GG54G, BIOS 1.28.0 05/10/2019
Workqueue: events i915_hotplug_work_func [i915]
RIP: 0010:drm_wait_one_vblank+0x18b/0x1a0 [drm]
Code: 0f 0b e9 21 ff ff ff 48 89 e6 4c 89 f7 e8 1d ba eb cc 45 85 ed 0f 85 02 ff ff ff 44 89 e6 48 c7 c7 50 41 29 c0 e8 33 17 e7 cc <0f> 0b e9 ec fe ff ff e8 49 14 e7 cc 66 0f 1f 84 00 00 00 00 00 0f
RSP: 0018:ffffa84604b7bd08 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000000003f2b4 RCX: 0000000000000006
RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff942bbf317900
RBP: ffff942bb3460000 R08: 0000043285768734 R09: ffffffff8ebe8044
R10: 0000000000000441 R11: 0000000000029328 R12: 0000000000000000
R13: 0000000000000000 R14: ffff942bbc4a3808 R15: ffff942bbc4a1000
FS:  0000000000000000(0000) GS:ffff942bbf300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557044414456 CR3: 000000033140a004 CR4: 00000000003606e0
Call Trace:
 ? finish_wait+0x80/0x80
 intel_dp_retrain_link+0x11b/0x190 [i915]
 intel_ddi_hotplug+0x50/0x2a0 [i915]
 ? __switch_to_asm+0x40/0x70
 ? __switch_to_asm+0x34/0x70
 i915_hotplug_work_func+0x14f/0x1d0 [i915]
 process_one_work+0x19d/0x340
 worker_thread+0x50/0x3b0
 kthread+0xfb/0x130
 ? process_one_work+0x340/0x340
 ? kthread_park+0x80/0x80
 ret_from_fork+0x35/0x40