For the last few days, after suspending and resuming, I get display corruption in Google Chrome. Parts of the UI are replaces with black boxes. Resizing the window causes it to redraw but if I switch back to the original size then it goes back to black. I noticed it on 5.4.0-47 and backed down to 5.4.0-45 but still see the same. Looks like 5.4.0-45 was only released a few days before 5.4.0-47 so maybe I didn't reboot in that time. Those are the only upgrades I can see in the right timeframe.
I had a look in dmesg and saw some warnings; not sure if they're related:
[ 59.251347] ------------[ cut here ]------------
[ 59.251357] WARNING: CPU: 6 PID: 4533 at drivers/media/v4l2-core/v4l2-ioctl.c:1069 v4l_querycap+0x8f/0xa0 [videodev]
[ 59.251358] Modules linked in: msr nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype br_netfilter rfcomm ccm typec_displayport cmac algif_hash algif_skcipher af_alg xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter bridge stp llc aufs overlay bnep binfmt_misc nls_iso8859_1 btusb btrtl btbcm btintel snd_usb_audio bluetooth snd_usbmidi_lib ecdh_generic ecc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common dell_rbtn snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp mei_hdcp snd_hda_ext_core snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr snd_soc_core snd_compress ac97_bus snd_hda_codec_realtek snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp
[ 59.251391] snd_hda_codec_generic coretemp snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm dell_laptop ledtrig_audio snd_seq_midi snd_seq_midi_event kvm_intel kvm iwlmvm snd_rawmidi rapl mac80211 snd_seq dell_wmi dell_smbios input_leds dcdbas intel_cstate libarc4 snd_seq_device serio_raw snd_timer iwlwifi snd dell_wmi_descriptor intel_wmi_thunderbolt wmi_bmof rtsx_pci_ms mxm_wmi cfg80211 memstick soundcore mei_me hid_multitouch mei joydev processor_thermal_device intel_rapl_common intel_soc_dts_iosf intel_pch_thermal ucsi_acpi typec_ucsi typec int3403_thermal int340x_thermal_zone dell_smo8800 intel_hid int3400_thermal acpi_thermal_rel mac_hid acpi_pad sparse_keymap nvidia_uvm(OE) sch_fq_codel v4l2loopback(OE) videodev mc dell_smm_hwmon parport_pc nfsd ppdev auth_rpcgss nfs_acl lockd lp parport grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c
[ 59.251428] raid1 raid0 multipath linear wacom usbhid hid_generic nvidia_drm(POE) nvidia_modeset(POE) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nvidia(POE) rtsx_pci_sdmmc i915 aesni_intel crypto_simd cryptd i2c_algo_bit glue_helper drm_kms_helper nvme syscopyarea sysfillrect sysimgblt fb_sys_fops nvme_core i2c_i801 rtsx_pci intel_lpss_pci drm ahci intel_lpss ipmi_devintf idma64 libahci ipmi_msghandler virt_dma i2c_hid hid video pinctrl_cannonlake wmi pinctrl_intel
[ 59.251451] CPU: 6 PID: 4533 Comm: chrome Tainted: P U W OE 5.4.0-45-generic #49-Ubuntu
[ 59.251452] Hardware name: Dell Inc. Precision 5530/0FP2W2, BIOS 1.15.0 12/25/2019
[ 59.251460] RIP: 0010:v4l_querycap+0x8f/0xa0 [videodev]
[ 59.251462] Code: 00 00 80 48 b9 00 00 20 00 00 00 20 00 48 0b 4b 54 21 d6 39 f2 75 13 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b eb d0 <0f> 0b 48 89 4b 54 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00
[ 59.251464] RSP: 0018:ffffb367c518fc70 EFLAGS: 00010202
[ 59.251466] RAX: 0000000000000000 RBX: ffffb367c518fd88 RCX: 8520800285208002
[ 59.251467] RDX: 0000000085008003 RSI: 0000000085008002 RDI: 0000000000000000
[ 59.251469] RBP: ffffb367c518fc98 R08: 0000000000000000 R09: 0000000000ffff0a
[ 59.251470] R10: 0000000000000000 R11: 0000000000000000 R12: ffff995c57b5e000
[ 59.251471] R13: ffff995c4b2ff600 R14: ffff995b6de87980 R15: ffffffffc04dc380
[ 59.251474] FS: 00007fab7ada6340(0000) GS:ffff995c5c380000(0000) knlGS:0000000000000000
[ 59.251475] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 59.251477] CR2: 00002f5a17d09008 CR3: 0000000717140001 CR4: 00000000003606e0
[ 59.251478] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 59.251479] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 59.251480] Call Trace:
[ 59.251489] __video_do_ioctl+0x1a7/0x410 [videodev]
[ 59.251499] video_usercopy+0x2b5/0x670 [videodev]
[ 59.251507] ? v4l_s_fmt+0x670/0x670 [videodev]
[ 59.251517] video_ioctl2+0x15/0x20 [videodev]
[ 59.251525] v4l2_ioctl+0x4c/0x60 [videodev]
[ 59.251528] do_vfs_ioctl+0x407/0x670
[ 59.251532] ? putname+0x4a/0x50
[ 59.251535] ksys_ioctl+0x67/0x90
[ 59.251538] __x64_sys_ioctl+0x1a/0x20
[ 59.251542] do_syscall_64+0x57/0x190
[ 59.251547] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 59.251548] RIP: 0033:0x7fab7c00537b
[ 59.251551] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48
[ 59.251552] RSP: 002b:00007fffa3357b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 59.251554] RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00007fab7c00537b
[ 59.251556] RDX: 00007fffa3357c20 RSI: ffffffff80685600 RDI: 0000000000000017
[ 59.251557] RBP: 00007fffa3357d10 R08: 0000000000000000 R09: 00002f5a17cee340
[ 59.251558] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa3357b90
[ 59.251560] R13: 00002f5a17cdb0c0 R14: 00002f5a17cee450 R15: 00002f5a17cebb70
[ 59.251562] ---[ end trace a46f21f7de3e614d ]---
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-45-generic 5.4.0-45.49
ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55
Uname: Linux 5.4.0-45-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: shaun 2662 F.... pulseaudio
/dev/snd/controlC0: shaun 2662 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 13 10:51:25 2020
InstallationDate: Installed on 2018-12-11 (641 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
MachineType: Dell Inc. Precision 5530
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-45-generic root=/dev/mapper/ubuntu--vg-root ro mem_sleep_default=deep resume=/dev/disk/by-uuid/01f98d09-5f44-4469-904b-c976fbd46d96 quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.4.0-45-generic N/A
linux-backports-modules-5.4.0-45-generic N/A
linux-firmware 1.187.3
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-05-02 (133 days ago)
dmi.bios.date: 12/25/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.15.0
dmi.board.name: 0FP2W2
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.15.0:bd12/25/2019:svnDellInc.:pnPrecision5530:pvr:rvnDellInc.:rn0FP2W2:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Precision
dmi.product.name: Precision 5530
dmi.product.sku: 087D
dmi.sys.vendor: Dell Inc.
Looks like the black boxes aren't the only corruption I see; websites like this one aren't rendering properly either, content is smearing like it's not being redrawn properly.