Comment 10 for bug 1930903

I have the same issue, causes screen freezes. Sometime I have to reset the PC manually.

```
[ 833.144906] ------------[ cut here ]------------
[ 833.144911] WARNING: CPU: 0 PID: 5386 at /var/lib/dkms/nvidia/470.63.01/build/nvidia-drm/nvidia-drm-drv.c:574 nv_drm_master_set+0x27/0x30 [nvidia_drm]
[ 833.144922] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ip6table_filter ip6_tables iptable_filter bpfilter nvidia_uvm(POE) nvidia_drm(POE) nvidia_modeset(POE) snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_usb_audio snd_usbmidi_lib snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec nvidia(POE) snd_hda_core snd_hwdep hid_a4tech snd_pcm coretemp snd_seq_midi kvm_intel snd_seq_midi_event kvm snd_rawmidi rt2800pci snd_seq isl6421 rt2800mmio rt2800lib rt2x00pci rt2x00mmio b2c2_flexcop_pci input_leds rt2x00lib serio_raw mac80211 b2c2_flexcop snd_seq_device s5h1420 cx24113 cx24123 dvb_core snd_timer drm_kms_helper mc cfg80211 cec rc_core eeprom_93cx6 snd fb_sys_fops libarc4 syscopyarea sysfillrect sysimgblt soundcore x38_edac mac_hid sch_fq_codel msr parport_pc ppdev lp parport drm sunrpc ip_tables x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0
[ 833.145001] multipath linear system76_io(OE) wmi system76_acpi(OE) pata_acpi gpio_ich firewire_ohci hid_generic i2c_i801 firewire_core i2c_smbus lpc_ich crc_itu_t r8169 usbhid realtek ahci libahci pata_jmicron hid
[ 833.145022] CPU: 0 PID: 5386 Comm: gst-plugin-scan Tainted: P OE 5.13.0-7614-generic #14~1631647151~20.04~930e87c-Ubuntu
[ 833.145025] Hardware name: Gigabyte Technology Co., Ltd. X48-DQ6/X48-DQ6, BIOS F8D 04/24/2009
[ 833.145027] RIP: 0010:nv_drm_master_set+0x27/0x30 [nvidia_drm]
[ 833.145033] Code: 0f 1f 00 0f 1f 44 00 00 55 48 8b 47 38 48 8b 78 20 48 8b 05 cb 6c 00 00 48 89 e5 48 8b 40 28 e8 7f 10 11 ec 84 c0 74 02 5d c3 <0f> 0b 5d c3 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56
[ 833.145035] RSP: 0018:ffffa6e1c8397a10 EFLAGS: 00010246
[ 833.145038] RAX: 0000000000000000 RBX: ffff9a454f890e00 RCX: 0000000000000008
[ 833.145040] RDX: ffffffffc30d8e18 RSI: 0000000000000292 RDI: ffffffffc30d8de0
[ 833.145042] RBP: ffffa6e1c8397a10 R08: 0000000000000008 R09: ffffa6e1c83979f8
[ 833.145044] R10: 0000000000000000 R11: ffffffffc055de58 R12: ffff9a44c639f000
[ 833.145045] R13: ffff9a43f138a300 R14: 0000000000000001 R15: ffff9a44c639f000
[ 833.145047] FS: 00007feaeeb4b340(0000) GS:ffff9a45dfc00000(0000) knlGS:0000000000000000
[ 833.145050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 833.145052] CR2: 00007feaee9cb000 CR3: 000000002d160000 CR4: 00000000000006f0
[ 833.145054] Call Trace:
[ 833.145058] drm_set_master+0x55/0x80 [drm]
[ 833.145097] drm_new_set_master+0x4d/0xa0 [drm]
[ 833.145126] drm_master_open+0x6e/0xa0 [drm]
[ 833.145155] drm_open+0x18a/0x260 [drm]
[ 833.145222] drm_stub_open+0xae/0x110 [drm]
[ 833.145255] chrdev_open+0xd3/0x1c0
[ 833.145261] ? cdev_default_release+0x20/0x20
[ 833.145264] do_dentry_open+0x156/0x370
[ 833.145268] vfs_open+0x2d/0x30
[ 833.145271] do_open.isra.0+0x224/0x420
[ 833.145274] path_openat+0x18e/0xc80
[ 833.145276] ? copyout+0x20/0x30
[ 833.145281] ? mutex_lock+0x13/0x40
[ 833.145286] ? seq_read_iter+0x14b/0x4c0
[ 833.145291] do_filp_open+0xa2/0x110
[ 833.145294] ? __check_object_size+0x13f/0x150
[ 833.145297] do_sys_openat2+0x241/0x310
[ 833.145301] do_sys_open+0x46/0x80
[ 833.145303] __x64_sys_openat+0x20/0x30
[ 833.145306] do_syscall_64+0x61/0xb0
[ 833.145310] ? exit_to_user_mode_prepare+0x3d/0x1c0
[ 833.145315] ? syscall_exit_to_user_mode+0x27/0x50
[ 833.145319] ? do_syscall_64+0x6e/0xb0
[ 833.145322] ? syscall_exit_to_user_mode+0x27/0x50
[ 833.145325] ? __x64_sys_close+0x12/0x40
[ 833.145327] ? do_syscall_64+0x6e/0xb0
[ 833.145330] ? do_syscall_64+0x6e/0xb0
[ 833.145332] ? do_syscall_64+0x6e/0xb0
[ 833.145335] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 833.145338] RIP: 0033:0x7feaeeebbeab
[ 833.145341] Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00 00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 48 8b 4c 24 28 64 48 33 0c 25
[ 833.145343] RSP: 002b:00007ffcb3358320 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 833.145346] RAX: ffffffffffffffda RBX: 00005584f78fa170 RCX: 00007feaeeebbeab
[ 833.145348] RDX: 0000000000080002 RSI: 00005584f78fdb40 RDI: 00000000ffffff9c
[ 833.145350] RBP: 00005584f78fdb40 R08: 00007feaee9f1c34 R09: 00007feaeef15870
[ 833.145352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080002
[ 833.145354] R13: 00007feaeeb44e30 R14: 00005584f78d6330 R15: 00007feaeeb230b4
[ 833.145357] ---[ end trace 8a722db2354bce39 ]---
[ 2647.210892] sched: RT throttling activated

```