Public bug reported:
I'm having random lockups, sort of.
When this happens, usually one monitor out of 3 (including laptop
display) will turn off (one of the external monitors) sometimes both
external monitors. Usually I can spawn new applications and the system
is usable but if I try to detect the displays again or if I undock, all
remaining screens go blank (normal) but don't return like usual. I'm
unable to change to a new virtual console so all I can do is reboot.
Sometimes I'm able to do a soft reboot (with power button), other times
I have to hold the power button to do a hard shutdown.
I'm not sure if it's related but I get this error in dmesg:
[ 1.001281] BERT: Error records from previous boot:
[ 1.001281] [Hardware Error]: event severity: fatal
[ 1.001282] [Hardware Error]: Error 0, type: fatal
[ 1.001283] [Hardware Error]: section type: unknown,
81212a96-09ed-4996-9471-8d729c8e69ed
[ 1.001284] [Hardware Error]: section length: 0xc20
[ 1.001285] [Hardware Error]: 00000000: 00000201 00000000 00000000
01002001 ............. ..
[ 1.001286] [Hardware Error]: 00000010: 00000000 00000000 00000000
00000000 ................
[ 1.001286] [Hardware Error]: 00000020: 01002001 00000006 527ed301
0000022b . ........~R+...
[ 1.001287] [Hardware Error]: 00000030: 00000002 0000004e 090a004c
800003ff ....N...L.......
[ 1.001288] [Hardware Error]: 00000040: 02002080 7f05fe03 00000001
00000000 . ..............
[ 1.001288] [Hardware Error]: 00000050: 22000000 01200000 10002031
00004000 ...".. .1 ...@..
[ 1.001289] [Hardware Error]: 00000060: 01000002 c7000200 ff0b0204
ff01f08b ................
[ 1.001289] [Hardware Error]: 00000070: 750e687b 9a002000 00110000
00002000 {h.u. ....... ..
[ 1.001290] [Hardware Error]: 00000080: 04000000 00000000 00502881
000ecf1a .........(P.....
[ 1.001291] [Hardware Error]: 00000090: 00035d00 00000001 5af3f070
1020003c .]......p..Z<. .
[ 1.001291] [Hardware Error]: 000000a0: 000000c6 fef3f900 de3717fc
ff477ecf ..........7..~G.
[ 1.001292] [Hardware Error]: 000000b0: 7cf3f8ff 18321000 034178cf
5af3f01e ...|..2..xA....Z
[ 1.001292] [Hardware Error]: 000000c0: 1000003c 000000c6 00000000
00000000 <...............
[ 1.001293] [Hardware Error]: 000000d0: 00000000 c4302000 08241cfc
0100000c ..... 0...$.....
[ 1.001293] [Hardware Error]: 000000e0: 010c0700 21c80003 00b88030
18001800 .......!0.......
[ 1.001294] [Hardware Error]: 000000f0: 00000000 024166c0 00000000
00000000 .....fA.........
[ 1.001295] [Hardware Error]: 00000100: 000010c0 00004200 00000000
0114b800 .....B..........
[ 1.001295] [Hardware Error]: 00000110: 00000002 00000009 00000080
4880bf01 ...............H
[ 1.001296] [Hardware Error]: 00000120: 883f0080 b27f40e3 77c0c90f
4880bffc ..?..@.....w...H
[ 1.001296] [Hardware Error]: 00000130: 883f0080 990290e3 003b1816
00010000 ..?.......;.....
[ 1.001297] [Hardware Error]: 00000140: 00010000 81010000 00333833
00010000 ........383.....
[ 1.001298] [Hardware Error]: 00000150: 00010000 98010000 ff063506
ff00000f .........5......
[ 1.001298] [Hardware Error]: 00000160: ff00000f 8000000f ff0db303
ff00000f ................
[ 1.001299] [Hardware Error]: 00000170: ff00000f 0000000f 00000000
00000000 ................
[ 1.001299] [Hardware Error]: 00000180: 00000000 00000000 00000000
00000000 ................
[ 1.001300] [Hardware Error]: 00000190: 00000000 00000000 00000000
00000000 ................
[ 1.001300] [Hardware Error]: 000001a0: 00010000 00010000 00010000
82010000 ................
[ 1.001301] [Hardware Error]: 000001b0: 004018f6 00010000 00010000
ff010000 ..@.............
[ 1.001301] [Hardware Error]: 000001c0: ff00000f ff00000f ff00000f
8100000f ................
[ 1.001302] [Hardware Error]: 000001d0: ff00ec06 ff00000f ff00000f
0000000f ................
[ 1.001302] [Hardware Error]: 000001e0: 00000000 00000000 00000000
00000000 ................
[ 1.001303] [Hardware Error]: 000001f0: 00000000 00000000 00000000
00000000 ................
[ 1.001303] [Hardware Error]: 00000200: 00000000 00000000 00000000
00000000 ................
[ 1.001304] [Hardware Error]: 00000210: 00000000 00000000 09200000
dec90002 .......... .....
[ 1.001304] [Hardware Error]: 00000220: fc0c020e 015e00a9 3900301e
00000000 ......^..0.9....
[ 1.001305] [Hardware Error]: 00000230: 00000000 00000000 00000000
00000000 ................
[ 1.001305] [Hardware Error]: 00000240: 00000000 00000000 00000000
00000000 ................
[ 1.001306] [Hardware Error]: 00000250: 00000000 00000000 00000000
00000000 ................
[ 1.001306] [Hardware Error]: 00000260: 00000000 00000000 00000000
00000000 ................
[ 1.001307] [Hardware Error]: 00000270: 00000000 00000000 00000000
00000000 ................
[ 1.001307] [Hardware Error]: 00000280: 00000000 00000000 00000000
00000000 ................
[ 1.001308] [Hardware Error]: 00000290: 00000000 00000000 00000000
00000000 ................
[ 1.001308] [Hardware Error]: 000002a0: 00000000 00000000 00000000
00000000 ................
[ 1.001309] [Hardware Error]: 000002b0: 00000000 00000000 00000000
00000000 ................
[ 1.001309] [Hardware Error]: 000002c0: 00000000 00000000 00000000
00000000 ................
[ 1.001310] [Hardware Error]: 000002d0: 00000000 00000000 00000000
00000000 ................
[ 1.001310] [Hardware Error]: 000002e0: 00000000 00000000 00000000
00000000 ................
[ 1.001311] [Hardware Error]: 000002f0: 00000000 00000000 00000000
00000000 ................
[ 1.001311] [Hardware Error]: 00000300: 00000000 00000000 00000000
00000000 ................
[ 1.001312] [Hardware Error]: 00000310: 00000000 00000000 00000000
00000000 ................
[ 1.001312] [Hardware Error]: 00000320: 00000000 00000000 00000000
00000000 ................
[ 1.001313] [Hardware Error]: 00000330: 00000000 00000000 00000000
00000000 ................
[ 1.001313] [Hardware Error]: 00000340: 00000000 00000000 00000000
00000000 ................
[ 1.001314] [Hardware Error]: 00000350: 00000000 00000000 00000000
00000000 ................
[ 1.001314] [Hardware Error]: 00000360: 00000000 00000000 00000000
00000000 ................
[ 1.001315] [Hardware Error]: 00000370: 00000000 00000000 00000000
00000000 ................
[ 1.001315] [Hardware Error]: 00000380: 00000000 00000000 00000000
00000000 ................
[ 1.001315] [Hardware Error]: 00000390: 00000000 00000000 00000000
00000000 ................
[ 1.001316] [Hardware Error]: 000003a0: 00000000 00000000 00000000
00000000 ................
[ 1.001316] [Hardware Error]: 000003b0: 00000000 00000000 00000000
00000000 ................
[ 1.001317] [Hardware Error]: 000003c0: 00000000 00000000 00000000
00000000 ................
[ 1.001317] [Hardware Error]: 000003d0: 00000000 00000000 00000000
00000000 ................
[ 1.001318] [Hardware Error]: 000003e0: 00000000 00000000 00000000
00000000 ................
[ 1.001318] [Hardware Error]: 000003f0: 00000000 00000000 00000000
00000000 ................
[ 1.001319] [Hardware Error]: 00000400: 00000000 00000000 00000000
00000000 ................
[ 1.001319] [Hardware Error]: 00000410: 00000000 00000000 00000000
00000000 ................
[ 1.001320] [Hardware Error]: 00000420: 00000000 00000000 00000000
00000000 ................
[ 1.001320] [Hardware Error]: 00000430: 00000000 00000000 00000000
00000000 ................
[ 1.001321] [Hardware Error]: 00000440: 00000000 00000000 00000000
00000000 ................
[ 1.001321] [Hardware Error]: 00000450: 00000000 00000000 00000000
00000000 ................
[ 1.001322] [Hardware Error]: 00000460: 00000000 00000000 00000000
00000000 ................
[ 1.001322] [Hardware Error]: 00000470: 00000000 00000000 00000000
00000000 ................
[ 1.001323] [Hardware Error]: 00000480: 00000000 00000000 00000000
00000000 ................
[ 1.001323] [Hardware Error]: 00000490: 00000000 00000000 00000000
00000000 ................
[ 1.001324] [Hardware Error]: 000004a0: 00000000 00000000 00000000
00000000 ................
[ 1.001324] [Hardware Error]: 000004b0: 00000000 00000000 00000000
00000000 ................
[ 1.001325] [Hardware Error]: 000004c0: 00000000 00000000 00000000
00000000 ................
[ 1.001325] [Hardware Error]: 000004d0: 00000000 00000000 00000000
00000000 ................
[ 1.001326] [Hardware Error]: 000004e0: 00000000 00000000 00000000
00000000 ................
[ 1.001326] [Hardware Error]: 000004f0: 00000000 00000000 00000000
00000000 ................
[ 1.001326] [Hardware Error]: 00000500: 00000000 00000000 00000000
00000000 ................
[ 1.001327] [Hardware Error]: 00000510: 00000000 00000000 00000000
00000000 ................
[ 1.001327] [Hardware Error]: 00000520: 00000000 00000000 00000000
00000000 ................
[ 1.001328] [Hardware Error]: 00000530: 00000000 00000000 00000000
00000000 ................
[ 1.001328] [Hardware Error]: 00000540: 00000000 00000000 00000000
00000000 ................
[ 1.001329] [Hardware Error]: 00000550: 00000000 00000000 00000000
00000000 ................
[ 1.001329] [Hardware Error]: 00000560: 00000000 00000000 00000000
00000000 ................
[ 1.001330] [Hardware Error]: 00000570: 00000000 00000000 00000000
00000000 ................
[ 1.001330] [Hardware Error]: 00000580: 00000000 00000000 00000000
00000000 ................
[ 1.001331] [Hardware Error]: 00000590: 00000000 00000000 00000000
00000000 ................
[ 1.001331] [Hardware Error]: 000005a0: 00000000 00000000 00000000
00000000 ................
[ 1.001332] [Hardware Error]: 000005b0: 00000000 00000000 00000000
00000000 ................
[ 1.001332] [Hardware Error]: 000005c0: 00000000 00000000 00000000
00000000 ................
[ 1.001333] [Hardware Error]: 000005d0: 00000000 00000000 00000000
00000000 ................
[ 1.001333] [Hardware Error]: 000005e0: 00000000 00000000 00000000
00000000 ................
[ 1.001334] [Hardware Error]: 000005f0: 00000000 00000000 00000000
00000000 ................
[ 1.001334] [Hardware Error]: 00000600: 00000000 00000000 00000000
00000000 ................
[ 1.001335] [Hardware Error]: 00000610: 00000000 00000000 00000000
00000000 ................
[ 1.001335] [Hardware Error]: 00000620: 00000000 00000000 00000000
00000000 ................
[ 1.001336] [Hardware Error]: 00000630: 00000000 00000000 00000000
00000000 ................
[ 1.001336] [Hardware Error]: 00000640: 00000000 00000000 00000000
00000000 ................
[ 1.001337] [Hardware Error]: 00000650: 00000000 00000000 00000000
00000000 ................
[ 1.001337] [Hardware Error]: 00000660: 00000000 00000000 00000000
00000000 ................
[ 1.001338] [Hardware Error]: 00000670: 00000000 00000000 00000000
00000000 ................
[ 1.001338] [Hardware Error]: 00000680: 00000000 00000000 00000000
00000000 ................
[ 1.001338] [Hardware Error]: 00000690: 00000000 00000000 00000000
00000000 ................
[ 1.001339] [Hardware Error]: 000006a0: 00000000 00000000 00000000
00000000 ................
[ 1.001339] [Hardware Error]: 000006b0: 00000000 00000000 00000000
00000000 ................
[ 1.001340] [Hardware Error]: 000006c0: 00000000 00000000 00000000
00000000 ................
[ 1.001340] [Hardware Error]: 000006d0: 00000000 00000000 00000000
00000000 ................
[ 1.001341] [Hardware Error]: 000006e0: 00000000 00000000 00000000
00000000 ................
[ 1.001341] [Hardware Error]: 000006f0: 00000000 00000000 00000000
00000000 ................
[ 1.001342] [Hardware Error]: 00000700: 00000000 00000000 00000000
00000000 ................
[ 1.001342] [Hardware Error]: 00000710: 00000000 00000000 00000000
00000000 ................
[ 1.001343] [Hardware Error]: 00000720: 00000000 00000000 00000000
00000000 ................
[ 1.001343] [Hardware Error]: 00000730: 00000000 00000000 00000000
00000000 ................
[ 1.001344] [Hardware Error]: 00000740: 00000000 00000000 00000000
00000000 ................
[ 1.001344] [Hardware Error]: 00000750: 00000000 00000000 00000000
00000000 ................
[ 1.001345] [Hardware Error]: 00000760: 00000000 00000000 00000000
00000000 ................
[ 1.001345] [Hardware Error]: 00000770: 00000000 00000000 00000000
00000000 ................
[ 1.001346] [Hardware Error]: 00000780: 00000000 00000000 00000000
00000000 ................
[ 1.001346] [Hardware Error]: 00000790: 00000000 00000000 00000000
00000000 ................
[ 1.001347] [Hardware Error]: 000007a0: 00000000 00000000 00000000
00000000 ................
[ 1.001347] [Hardware Error]: 000007b0: 00000000 00000000 00000000
00000000 ................
[ 1.001348] [Hardware Error]: 000007c0: 00000000 00000000 00000000
00000000 ................
[ 1.001348] [Hardware Error]: 000007d0: 00000000 00000000 00000000
00000000 ................
[ 1.001349] [Hardware Error]: 000007e0: 00000000 00000000 00000000
00000000 ................
[ 1.001349] [Hardware Error]: 000007f0: 00000000 00000000 00000000
00000000 ................
[ 1.001349] [Hardware Error]: 00000800: 00000000 00000000 00000000
00000000 ................
[ 1.001350] [Hardware Error]: 00000810: 00000000 00000000 00000000
00000000 ................
[ 1.001351] [Hardware Error]: 00000820: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001351] [Hardware Error]: 00000830: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001352] [Hardware Error]: 00000840: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001352] [Hardware Error]: 00000850: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001353] [Hardware Error]: 00000860: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001353] [Hardware Error]: 00000870: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001354] [Hardware Error]: 00000880: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001354] [Hardware Error]: 00000890: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001355] [Hardware Error]: 000008a0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001355] [Hardware Error]: 000008b0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001356] [Hardware Error]: 000008c0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001356] [Hardware Error]: 000008d0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001357] [Hardware Error]: 000008e0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001357] [Hardware Error]: 000008f0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001358] [Hardware Error]: 00000900: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001358] [Hardware Error]: 00000910: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001359] [Hardware Error]: 00000920: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001359] [Hardware Error]: 00000930: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001360] [Hardware Error]: 00000940: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001360] [Hardware Error]: 00000950: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001361] [Hardware Error]: 00000960: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001361] [Hardware Error]: 00000970: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001362] [Hardware Error]: 00000980: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001362] [Hardware Error]: 00000990: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001363] [Hardware Error]: 000009a0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001363] [Hardware Error]: 000009b0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001364] [Hardware Error]: 000009c0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001364] [Hardware Error]: 000009d0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001365] [Hardware Error]: 000009e0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001365] [Hardware Error]: 000009f0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001366] [Hardware Error]: 00000a00: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001366] [Hardware Error]: 00000a10: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001367] [Hardware Error]: 00000a20: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001367] [Hardware Error]: 00000a30: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001368] [Hardware Error]: 00000a40: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001368] [Hardware Error]: 00000a50: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001369] [Hardware Error]: 00000a60: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001369] [Hardware Error]: 00000a70: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001370] [Hardware Error]: 00000a80: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001370] [Hardware Error]: 00000a90: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001371] [Hardware Error]: 00000aa0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001371] [Hardware Error]: 00000ab0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001372] [Hardware Error]: 00000ac0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001372] [Hardware Error]: 00000ad0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001373] [Hardware Error]: 00000ae0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001373] [Hardware Error]: 00000af0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001374] [Hardware Error]: 00000b00: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001374] [Hardware Error]: 00000b10: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001375] [Hardware Error]: 00000b20: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001375] [Hardware Error]: 00000b30: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001376] [Hardware Error]: 00000b40: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001376] [Hardware Error]: 00000b50: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001377] [Hardware Error]: 00000b60: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001377] [Hardware Error]: 00000b70: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001378] [Hardware Error]: 00000b80: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001378] [Hardware Error]: 00000b90: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001379] [Hardware Error]: 00000ba0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001379] [Hardware Error]: 00000bb0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001380] [Hardware Error]: 00000bc0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001381] [Hardware Error]: 00000bd0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001381] [Hardware Error]: 00000be0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001382] [Hardware Error]: 00000bf0: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001382] [Hardware Error]: 00000c00: ffffffff ffffffff ffffffff
ffffffff ................
[ 1.001383] [Hardware Error]: 00000c10: ffffffff ffffffff ffffffff
ffffffff ................
I'm running a Lenovo Thinkpad T14
I did find a similar unresolved bug: #1815711
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-52-generic 5.4.0-52.57
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: julius 4711 F.... pulseaudio
/dev/snd/controlC1: julius 4711 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 28 13:39:02 2020
InstallationDate: Installed on 2020-10-02 (26 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: LENOVO 20S1S2H600
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_zpweiv@/vmlinuz-5.4.0-52-generic
root=ZFS=rpool/ROOT/ubuntu_zpweiv ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-5.4.0-52-generic N/A
linux-backports-modules-5.4.0-52-generic N/A
linux-firmware 1.187.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/26/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N2XET23W (1.13 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20S1S2H600
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2XET23W(1.13):bd08/26/2020:svnLENOVO:pn20S1S2H600:pvrThinkPadT14Gen1:rvnLENOVO:rn20S1S2H600:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T14 Gen 1
dmi.product.name: 20S1S2H600
dmi.product.sku: LENOVO_MT_20S1_BU_Think_FM_ThinkPad T14 Gen 1
dmi.product.version: ThinkPad T14 Gen 1
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1901894
Title:
One or more monitors turns off but system usable until monitor
orientation change
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