I run this laptop with two external screens, using displayport daisy chaining, connected over USB-C. This crash happens when the daisy-chained screen loses connection. Here's a trace from the syslog:
2023-06-27T14:03:46.539822+02:00 parahippus kernel: [518130.334914] [drm] DM_MST: stopping TM on aconnector: 00000000b0b244c1 [id: 90]
2023-06-27T14:03:47.315820+02:00 parahippus kernel: [518131.110966] [drm] DP Alt mode state on HPD: 1
2023-06-27T14:03:47.439805+02:00 parahippus kernel: [518131.235885] [drm] DM_MST: starting TM on aconnector: 00000000b0b244c1 [id: 90]
2023-06-27T14:03:50.898600+02:00 parahippus kernel: [518132.646219] BUG: kernel NULL pointer dereference, address: 0000000000000008
2023-06-27T14:03:50.898614+02:00 parahippus kernel: [518132.646229] #PF: supervisor read access in kernel mode
2023-06-27T14:03:50.898616+02:00 parahippus kernel: [518132.646234] #PF: error_code(0x0000) - not-present page
2023-06-27T14:03:50.898619+02:00 parahippus kernel: [518132.646238] PGD 0 P4D 0
2023-06-27T14:03:50.898621+02:00 parahippus kernel: [518132.646244] Oops: 0000 [#1] PREEMPT SMP NOPTI
2023-06-27T14:03:50.898623+02:00 parahippus kernel: [518132.646250] CPU: 0 PID: 1130 Comm: Xorg Tainted: G OE 6.2.0-23-generic #23-Ubuntu
2023-06-27T14:03:50.898625+02:00 parahippus kernel: [518132.646256] Hardware name: TUXEDO TUXEDO Aura 15 Gen1/NL5xRU, BIOS 1.07.11RTR2 01/30/2023
2023-06-27T14:03:50.898627+02:00 parahippus kernel: [518132.646260] RIP: 0010:drm_dp_add_payload_part2+0xfe/0x130 [drm_display_helper]
2023-06-27T14:03:50.898629+02:00 parahippus kernel: [518132.646297] Code: e8 37 7e 2c f0 44 89 f0 5b 41 5c 41 5d 41 5e 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 e9 b9 c2 8b f0 48 8b 80 58 05 00 00 <48> 8b 76 08 4c 8b 40 60 48 85 f6 74 04 48 8b 76 08 48 c7 c1 08 87
2023-06-27T14:03:50.898630+02:00 parahippus kernel: [518132.646302] RSP: 0018:ffffb8250307b5b8 EFLAGS: 00010246
2023-06-27T14:03:50.898632+02:00 parahippus kernel: [518132.646307] RAX: ffff900132cf6000 RBX: ffff900132cf6000 RCX: 0000000000000000
2023-06-27T14:03:50.898633+02:00 parahippus kernel: [518132.646311] RDX: ffff90013937e980 RSI: 0000000000000000 RDI: ffff900022a8a568
2023-06-27T14:03:50.898635+02:00 parahippus kernel: [518132.646314] RBP: ffffb8250307b5d8 R08: 0000000000000000 R09: 0000000000000000
2023-06-27T14:03:50.898637+02:00 parahippus kernel: [518132.646317] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
2023-06-27T14:03:50.898638+02:00 parahippus kernel: [518132.646320] R13: ffff900022a8a000 R14: ffff900021bb48a0 R15: 0000000000000006
2023-06-27T14:03:50.898639+02:00 parahippus kernel: [518132.646324] FS: 00007f26efa1ca80(0000) GS:ffff9006ef600000(0000) knlGS:0000000000000000
2023-06-27T14:03:50.898641+02:00 parahippus kernel: [518132.646328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2023-06-27T14:03:50.898642+02:00 parahippus kernel: [518132.646332] CR2: 0000000000000008 CR3: 000000010e9a6000 CR4: 0000000000350ef0
2023-06-27T14:03:50.898644+02:00 parahippus kernel: [518132.646336] Call Trace:
2023-06-27T14:03:50.898645+02:00 parahippus kernel: [518132.646339] <TASK>
2023-06-27T14:03:50.898646+02:00 parahippus kernel: [518132.646346] dm_helpers_dp_mst_send_payload_allocation+0x90/0xd0 [amdgpu]
2023-06-27T14:03:50.898647+02:00 parahippus kernel: [518132.647146] dc_link_allocate_mst_payload+0x1a9/0x360 [amdgpu]
2023-06-27T14:03:50.898648+02:00 parahippus kernel: [518132.647911] core_link_enable_stream+0x5fc/0x650 [amdgpu]
2023-06-27T14:03:50.898650+02:00 parahippus kernel: [518132.647995] apply_single_controller_ctx_to_hw+0x416/0x4c0 [amdgpu]
2023-06-27T14:03:50.898651+02:00 parahippus kernel: [518132.647995] dce110_apply_ctx_to_hw+0x1f1/0x360 [amdgpu]
2023-06-27T14:03:50.898653+02:00 parahippus kernel: [518132.647995] ? dcn10_wait_for_mpcc_disconnect+0x51/0x220 [amdgpu]
2023-06-27T14:03:50.898654+02:00 parahippus kernel: [518132.647995] ? dcn20_prepare_bandwidth+0xc7/0x1c0 [amdgpu]
2023-06-27T14:03:50.898655+02:00 parahippus kernel: [518132.647995] dc_commit_state_no_check+0x313/0xd20 [amdgpu]
2023-06-27T14:03:50.898657+02:00 parahippus kernel: [518132.647995] dc_commit_state+0x127/0x160 [amdgpu]
2023-06-27T14:03:50.898658+02:00 parahippus kernel: [518132.647995] amdgpu_dm_atomic_commit_tail+0x60b/0x13e0 [amdgpu]
2023-06-27T14:03:50.898659+02:00 parahippus kernel: [518132.647995] ? dcn21_fast_validate_bw+0x4c4/0x6f0 [amdgpu]
2023-06-27T14:03:50.898661+02:00 parahippus kernel: [518132.647995] ? __kmem_cache_alloc_node+0x19d/0x340
2023-06-27T14:03:50.898662+02:00 parahippus kernel: [518132.647995] ? dcn21_validate_bandwidth_fp+0x15f/0x380 [amdgpu]
2023-06-27T14:03:50.898664+02:00 parahippus kernel: [518132.647995] ? kfree+0x78/0x120
2023-06-27T14:03:50.898665+02:00 parahippus kernel: [518132.647995] ? dcn21_validate_bandwidth_fp+0x15f/0x380 [amdgpu]
2023-06-27T14:03:50.898667+02:00 parahippus kernel: [518132.647995] ? dc_fpu_end+0xa7/0xd0 [amdgpu]
2023-06-27T14:03:50.898668+02:00 parahippus kernel: [518132.647995] ? dma_resv_iter_first_unlocked+0x66/0x80
2023-06-27T14:03:50.898669+02:00 parahippus kernel: [518132.647995] ? dma_resv_get_fences+0x5e/0x240
2023-06-27T14:03:50.898670+02:00 parahippus kernel: [518132.647995] ? fill_plane_buffer_attributes+0x188/0x2d0 [amdgpu]
2023-06-27T14:03:50.898671+02:00 parahippus kernel: [518132.647995] ? wait_for_completion_timeout+0x119/0x150
2023-06-27T14:03:50.898673+02:00 parahippus kernel: [518132.647995] ? dm_plane_helper_prepare_fb+0x1a9/0x330 [amdgpu]
2023-06-27T14:03:50.898674+02:00 parahippus kernel: [518132.647995] commit_tail+0xc2/0x190 [drm_kms_helper]
2023-06-27T14:03:50.898675+02:00 parahippus kernel: [518132.647995] ? drm_atomic_helper_swap_state+0x246/0x380 [drm_kms_helper]
2023-06-27T14:03:50.898676+02:00 parahippus kernel: [518132.647995] drm_atomic_helper_commit+0x11d/0x150 [drm_kms_helper]
2023-06-27T14:03:50.898678+02:00 parahippus kernel: [518132.647995] drm_atomic_commit+0x99/0xd0 [drm]
2023-06-27T14:03:50.898679+02:00 parahippus kernel: [518132.647995] ? __pfx___drm_printfn_info+0x10/0x10 [drm]
2023-06-27T14:03:50.898680+02:00 parahippus kernel: [518132.647995] drm_mode_obj_set_property_ioctl+0x17d/0x440 [drm]
2023-06-27T14:03:50.898681+02:00 parahippus kernel: [518132.647995] ? drm_ioctl_kernel+0xd6/0x180 [drm]
2023-06-27T14:03:50.898683+02:00 parahippus kernel: [518132.647995] ? __pfx_drm_mode_obj_set_property_ioctl+0x10/0x10 [drm]
2023-06-27T14:03:50.898684+02:00 parahippus kernel: [518132.647995] drm_ioctl_kernel+0xd6/0x180 [drm]
2023-06-27T14:03:50.898686+02:00 parahippus kernel: [518132.647995] drm_ioctl+0x2a0/0x4b0 [drm]
2023-06-27T14:03:50.898687+02:00 parahippus kernel: [518132.647995] ? __pfx_drm_mode_obj_set_property_ioctl+0x10/0x10 [drm]
2023-06-27T14:03:50.898688+02:00 parahippus kernel: [518132.647995] amdgpu_drm_ioctl+0x4e/0x90 [amdgpu]
2023-06-27T14:03:50.898689+02:00 parahippus kernel: [518132.647995] __x64_sys_ioctl+0xa0/0xe0
2023-06-27T14:03:50.898691+02:00 parahippus kernel: [518132.647995] do_syscall_64+0x5b/0x90
2023-06-27T14:03:50.898692+02:00 parahippus kernel: [518132.647995] ? exit_to_user_mode_prepare+0x91/0xb0
2023-06-27T14:03:50.898694+02:00 parahippus kernel: [518132.647995] ? irqentry_exit_to_user_mode+0x9/0x20
2023-06-27T14:03:50.898695+02:00 parahippus kernel: [518132.647995] ? irqentry_exit+0x43/0x50
2023-06-27T14:03:50.898696+02:00 parahippus kernel: [518132.647995] ? exc_page_fault+0x91/0x1b0
2023-06-27T14:03:50.898698+02:00 parahippus kernel: [518132.647995] entry_SYSCALL_64_after_hwframe+0x72/0xdc
2023-06-27T14:03:50.898699+02:00 parahippus kernel: [518132.647995] RIP: 0033:0x7f26ef9119ef
2023-06-27T14:03:50.898701+02:00 parahippus kernel: [518132.647995] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
2023-06-27T14:03:50.898702+02:00 parahippus kernel: [518132.647995] RSP: 002b:00007ffe540570d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
2023-06-27T14:03:50.898703+02:00 parahippus kernel: [518132.647995] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f26ef9119ef
2023-06-27T14:03:50.898705+02:00 parahippus kernel: [518132.647995] RDX: 00007ffe54057160 RSI: 00000000c01864ba RDI: 000000000000000f
2023-06-27T14:03:50.898707+02:00 parahippus kernel: [518132.647995] RBP: 00007ffe54057160 R08: 000000000000007d R09: 00000000000000ff
2023-06-27T14:03:50.898708+02:00 parahippus kernel: [518132.647995] R10: 000000000ffb0040 R11: 0000000000000246 R12: 00000000c01864ba
2023-06-27T14:03:50.898710+02:00 parahippus kernel: [518132.647995] R13: 000000000000000f R14: 000055a2b9afc0b0 R15: 0000000000000fff
2023-06-27T14:03:50.898711+02:00 parahippus kernel: [518132.647995] </TASK>
2023-06-27T14:03:50.898713+02:00 parahippus kernel: [518132.647995] Modules linked in: r8153_ecm cdc_ether usbnet r8152 mii snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_seq_device xt_nat xt_tcpudp veth xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xfrm_user xfrm_algo xt_addrtype nft_compat
nf_tables libcrc32c nfnetlink br_netfilter bridge stp llc nvme_fabrics rfcomm overlay cmac algif_hash algif_skcipher af_alg bnep binfmt_misc snd_sof_amd_rembrandt snd_sof_amd_renoir snd_sof_amd_acp snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_hda_codec_realtek snd_sof_utils snd_hda_codec_generic ledtrig_audio snd_soc_core snd_hda_codec_hdmi snd_compress ac97_bus
snd_pcm_dmaengine uvcvideo snd_hda_intel btusb iwlmvm snd_intel_dspcfg btrtl btbcm intel_rapl_msr snd_intel_sdw_acpi videobuf2_vmalloc snd_pci_ps intel_rapl_common btintel snd_hda_codec snd_rpl_pci_acp6x videobuf2_memops btmtk edac_mce_amd videobuf2_v4l2 snd_acp_pci snd_hda_core mac80211 bluetooth kvm_amd ecdh_generic libarc4
2023-06-27T14:03:50.898714+02:00 parahippus kernel: [518132.647995] snd_pci_acp6x snd_hwdep videobuf2_common ecc kvm snd_pci_acp5x snd_pcm iwlwifi irqbypass nls_iso8859_1 snd_timer snd_rn_pci_acp3x snd_acp_config clevo_wmi(OE) snd rapl snd_soc_acpi ccp snd_pci_acp3x soundcore cfg80211 k10temp clevo_acpi(OE) tuxedo_io(OE) tuxedo_keyboard(OE) led_class_multicolor
sparse_keymap joydev input_leds hid_multitouch serio_raw mac_hid v4l2loopback(O) videodev mc msr parport_pc ppdev lp parport efi_pstore dmi_sysfs ip_tables x_tables autofs4 dm_crypt amdgpu iommu_v2 drm_buddy gpu_sched i2c_algo_bit drm_ttm_helper ttm drm_display_helper cec rc_core nvme drm_kms_helper crct10dif_pclmul crc32_pclmul sdhci_pci syscopyarea polyval_cl
mulni sysfillrect polyval_generic cqhci r8169 nvme_core ghash_clmulni_intel sysimgblt sha512_ssse3 hid_generic aesni_intel crypto_simd cryptd psmouse xhci_pci i2c_piix4 drm xhci_pci_renesas nvme_common realtek sdhci i2c_hid_acpi video i2c_hid wmi hid
2023-06-27T14:03:50.898716+02:00 parahippus kernel: [518132.647995] CR2: 0000000000000008
2023-06-27T14:03:50.898718+02:00 parahippus kernel: [518132.647995] ---[ end trace 0000000000000000 ]---
2023-06-27T14:03:50.898719+02:00 parahippus kernel: [518134.578998] RIP: 0010:drm_dp_add_payload_part2+0xfe/0x130 [drm_display_helper]
2023-06-27T14:03:50.898721+02:00 parahippus kernel: [518134.578998] Code: e8 37 7e 2c f0 44 89 f0 5b 41 5c 41 5d 41 5e 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 e9 b9 c2 8b f0 48 8b 80 58 05 00 00 <48> 8b 76 08 4c 8b 40 60 48 85 f6 74 04 48 8b 76 08 48 c7 c1 08 87
2023-06-27T14:03:50.898722+02:00 parahippus kernel: [518134.578998] RSP: 0018:ffffb8250307b5b8 EFLAGS: 00010246
2023-06-27T14:03:50.898723+02:00 parahippus kernel: [518134.694658] RAX: ffff900132cf6000 RBX: ffff900132cf6000 RCX: 0000000000000000
2023-06-27T14:03:50.898725+02:00 parahippus kernel: [518134.694658] RDX: ffff90013937e980 RSI: 0000000000000000 RDI: ffff900022a8a568
2023-06-27T14:03:50.898726+02:00 parahippus kernel: [518134.694658] RBP: ffffb8250307b5d8 R08: 0000000000000000 R09: 0000000000000000
2023-06-27T14:03:50.898727+02:00 parahippus kernel: [518134.694658] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
2023-06-27T14:03:50.898730+02:00 parahippus kernel: [518134.694658] R13: ffff900022a8a000 R14: ffff900021bb48a0 R15: 0000000000000006
2023-06-27T14:03:50.898731+02:00 parahippus kernel: [518134.694658] FS: 00007f26efa1ca80(0000) GS:ffff9006ef600000(0000) knlGS:0000000000000000
2023-06-27T14:03:50.898732+02:00 parahippus kernel: [518134.694658] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2023-06-27T14:03:50.898733+02:00 parahippus kernel: [518134.694658] CR2: 0000000000000008 CR3: 000000010e9a6000 CR4: 0000000000350ef0
The same crash was also happening on Ubuntu 22.04 with basically every version of the kernel that I tried.
ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: linux-image-6.2.0-23-generic 6.2.0-23.23
ProcVersionSignature: Ubuntu 6.2.0-23.23-generic 6.2.12
Uname: Linux 6.2.0-23-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: koniiiik 3070 F.... pulseaudio
/dev/snd/controlC0: koniiiik 3070 F.... pulseaudio
CRDA: N/A
CasperMD5CheckResult: unknown
Date: Tue Jun 27 15:17:08 2023
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: TUXEDO TUXEDO Aura 15 Gen1
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.2.0-23-generic root=/dev/mapper/vg0-root ro nosplash
RelatedPackageVersions:
linux-restricted-modules-6.2.0-23-generic N/A
linux-backports-modules-6.2.0-23-generic N/A
linux-firmware 20230323.gitbcdcfbcf-0ubuntu1.1
SourcePackage: linux
UpgradeStatus: Upgraded to lunar on 2023-06-12 (15 days ago)
WifiSyslog:
dmi.bios.date: 01/30/2023
dmi.bios.release: 7.11
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 1.07.11RTR2
dmi.board.asset.tag: Tag 12345
dmi.board.name: NL5xRU
dmi.board.vendor: NB01
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TUXEDO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnINSYDECorp.:bvr1.07.11RTR2:bd01/30/2023:br7.11:svnTUXEDO:pnTUXEDOAura15Gen1:pvrNotApplicable:rvnNB01:rnNL5xRU:rvrNotApplicable:cvnTUXEDO:ct10:cvrN/A:skuAURA1501:
dmi.product.family: Not Applicable
dmi.product.name: TUXEDO Aura 15 Gen1
dmi.product.sku: AURA1501
dmi.product.version: Not Applicable
dmi.sys.vendor: TUXEDO
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