sway: Sway 1.7 crashes when external monitor is connected

• Sway Version:

sway version 1.7

• Stack Trace:

           PID: 127719 (sway)
           UID: 1000 (heapifyman)
           GID: 1000 (heapifyman)
        Signal: 6 (ABRT)
     Timestamp: Thu 2022-02-24 18:19:38 CET (53min ago)
  Command Line: sway
    Executable: /usr/bin/sway
 Control Group: /user.slice/user-1000.slice/session-14.scope
          Unit: session-14.scope
         Slice: user-1000.slice
       Session: 14
     Owner UID: 1000 (heapifyman)
       Boot ID: 33cfe6bb113845c087b731c2b2a64682
    Machine ID: 489a07b571a04e28900a841878091535
      Hostname: latitude5420
       Storage: /var/lib/systemd/coredump/core.sway.1000.33cfe6bb113845c087b731c2b2a64682.127719.1645723178000000.zst (present)
     Disk Size: 3.5M
       Message: Process 127719 (sway) of user 1000 dumped core.

                Module linux-vdso.so.1 with build-id 2392bc566695c3d07e55c26c295895c93e5a5039
                Module libnss_files.so.2 with build-id 1a36dfc01d3a1010b2ee79766a24a8090a3266d5
                Module libicudata.so.70 with build-id e1dcc2a88cfaafed882d09c90c668af0eed4efed
                Module libicuuc.so.70 with build-id 2e245c2bf12f95fd8ab79b3a4be99524677cbd70
                Module libxml2.so.2 with build-id b710b880b0d4e9c93554fa632129db44c20632cd
                Module libncursesw.so.6 with build-id 1f873ddb2c32ab39d0b7d8646d03680ffe99de7c
                Module libedit.so.0 with build-id 4b0babfcad161c2ad0af6e59e2493258db23a331
                Module libdrm_nouveau.so.2 with build-id ee16fa6a4d0bd08f5448cfc046ccb76b49aaa8a3
                Module libdrm_amdgpu.so.1 with build-id 30d019987d514b23115b47d6b47c1e45c18fdbaf
                Module libelf.so.1 with build-id 0eee16e5e39ae4c5016f31b2abb6c92f0804ae47
                Module libdrm_radeon.so.1 with build-id 5d1615e0467d0a34a5a82cbd4ebc84851e116307
                Module libsensors.so.5 with build-id dc8b2c1c0d8525411aca188ea3cc3fb86d381d30
                Module libLLVM-13.so with build-id 62bb83aeee3a955305312248a401be2cf62a0ea8
                Module iris_dri.so with build-id 10a9eafed46383cccd7c3dc76676aa5fdd37f3e5
                Module libxshmfence.so.1 with build-id 8876d9ccf620858795724ca24b9e567585a77cec
                Module libxcb-sync.so.1 with build-id dda14591103b01b1311906053bf1ca9e82ade35c
                Module libxcb-dri2.so.0 with build-id 2dd6e65129a809dab828a1d26215a3f7a363fcc8
                Module libX11-xcb.so.1 with build-id 0db4f94d8ae31b8dc9a83f825a9171656f1e532c
                Module libglapi.so.0 with build-id 9331aed5060062bcfafd463d36506312fab59549
                Module libEGL_mesa.so.0 with build-id 87783c9234dbd9030a4c7c71387b75ab04c03ed9
                Module libgpg-error.so.0 with build-id 82524ee3d1c4c2244d7cfdcc1e6eea5f9855f6c6
                Module libgcrypt.so.20 with build-id db45f5d5e0f7af1e77324fea1885f974619ad268
                Module libcap.so.2 with build-id eb6dae97527fc89dbb0d5bb581a15acd02ae9f56
                Module liblz4.so.1 with build-id e63600ab23b2f6997f42fac2fa56e1f02ce159a1
                Module libzstd.so.1 with build-id 72f3511cba7db578f6a2647925f35664da6c838b
                Module liblzma.so.5 with build-id 8b615460aa230708c5183f16bede67aa0437d95e
                Module libblkid.so.1 with build-id 16cc0887733296cbf17ddbac780435e8a9071246
                Module libbrotlicommon.so.1 with build-id a4ba3f4b4571c8272343b621da812a6e24a202a7
                Module libsystemd.so.0 with build-id eca1e10a62234b73a4e32d1b52598ce39cb186d4
                Module libstdc++.so.6 with build-id 9b5eeeb149bf3c4efe787fb398b44f00507aec87
                Module libgraphite2.so.3 with build-id 47761dc11e553f519cde97ed9ee985be12ccdae2
                Module libdatrie.so.1 with build-id 6fe3b6ece2c8e7d11869fa051375128d8f808f58
                Module libresolv.so.2 with build-id c915c72668282861a813f7ea3c0780f37b681dc0
                Module libmount.so.1 with build-id 03ade3c7be7f082dc9275212a30771131625fee7
                Module libgmodule-2.0.so.0 with build-id 5da4523e8d6b5c244a0193e27093d1e61f6ac9e4
                Module libgudev-1.0.so.0 with build-id a9f734ea9206d637d5aacfbd86298c91cdc1a33a
                Module libdl.so.2 with build-id 5abc547e7b0949f89f3c0e21ab0c8331a7440a8a
                Module libbrotlidec.so.1 with build-id 45defc036e918e0140a72f1fbce6e7692d38241d
                Module libbz2.so.1.0 with build-id 919597c477c9b2cb9cdbb7745ed6494ac0e6da60
                Module libexpat.so.1 with build-id c3b8b6921f5b323540b84acd301ccc7bc5bc0428
                Module libpangoft2-1.0.so.0 with build-id ef74c3ce7ee52a746fb5f2840d80a84e314edb92
                Module libXdmcp.so.6 with build-id 8ca0792d23c8b8b4c0864297512349292bea5955
                Module libXau.so.6 with build-id 1c67764663e07bec24d8951e5fd93f4d165979ff
                Module libxcb-errors.so.0 with build-id 0d6ee255fc30b6a86856b9f1a96491f12a1cacaf
                Module libxcb-res.so.0 with build-id b825f66a75478fd00eeb4c57ecb0ac7792e00f5e
                Module libxcb-icccm.so.4 with build-id 73f1e12d76af383aa969a60279ed5ed922045f47
                Module libxcb-composite.so.0 with build-id 94fff40466ef37eb5973997211aa68f9beb81d15
                Module libseat.so.1 with build-id 3a4a55c9d5228696da3e3a60469eb0f6d403c354
                Module libwayland-client.so.0 with build-id 0a237f2fd096bada4ca381eec5d64474c4078be4
                Module libxcb-xinput.so.0 with build-id 6403174c48f05f40cf7c168beb86f2886b9f09c1
                Module libxcb-xfixes.so.0 with build-id a6b197ace5b9b59f913f5969eb419a88d1194f47
                Module libxcb-render-util.so.0 with build-id c64fb28ea20a320a9754273d9ea3af85f6f74b17
                Module libxcb-present.so.0 with build-id 68f5465258750e2397b1333b3ffc01ee33caa4e1
                Module libxcb-dri3.so.0 with build-id 9407a2480e09dc5a1dd9d9a0652fa8d32b328c91
                Module libvulkan.so.1 with build-id 40c7a455d37803dbd362377df831a77142acb66b
                Module libEGL.so.1 with build-id 686c2e4036c01a3a72349ed0dd04f7c434af14ce
                Module libgbm.so.1 with build-id 5bc03a95f0b36fc100f1d7ca664ebacda793d4c1
                Module libdrm.so.2 with build-id 457a1a1bd25f1d5541a10d3f16c5dc1440d77c7d
                Module libGLdispatch.so.0 with build-id 501765b3a78d668860fa54229b18107473aeda4c
                Module libffi.so.8 with build-id f90d8b734f6de9b25faedb8cbfab7054dafc0a42
                Module libharfbuzz.so.0 with build-id 8006a225ec61b8231d0b003aebab9920ac0b9179
                Module libthai.so.0 with build-id a7ac5010b4275c49308021200d23690533952702
                Module libfribidi.so.0 with build-id 79124bad061c2aab4ec89f25d067363d5b781114
                Module libgio-2.0.so.0 with build-id e04146bb599deb6eb15744fc2e95e5f538952d56
                Module libgcc_s.so.1 with build-id 7f8508bb914546ada778809b64b99d234337d835
                Module librt.so.1 with build-id 75484da2d6f1515189eefa076e0a40328834cd16
                Module libwacom.so.9 with build-id bb1b4e6bbfa3929968f1acc5311154920dd9fc0b
                Module libmtdev.so.1 with build-id 0cea2a842ae9a0ef02a08477076caab0e5ac5e42
                Module ld-linux-x86-64.so.2 with build-id 040cc3dd10461562f177df39e3be2f3704258c3c
                Module libxcb-shm.so.0 with build-id fb797f299a446f559a95afcc168227482cc800d1
                Module libxcb-render.so.0 with build-id a37bdb37744b508be9dd29fd9ccb9bb0170d43e5
                Module libXrender.so.1 with build-id 97e0b9ab6ba96ebc86527cc2b3c3078aad8616b3
                Module libXext.so.6 with build-id d70f24beb4fad748d6becffdcc13e51be0a2ebfa
                Module libX11.so.6 with build-id 5ba5798d193c0065014b8c6252a0678671c8d478
                Module libfreetype.so.6 with build-id 26c5f833068ff72660d1975cbc2074c3eb47fad8
                Module libfontconfig.so.1 with build-id 9fdeb38479c4090d673efc2e8cb60176efe65da1
                Module libpng16.so.16 with build-id 2dc0bce07f199bf983c07a05fb95a6f4af83a9b3
                Module libz.so.1 with build-id 0c1459c56513efd5d53eb3868290e9afee6a6a26
                Module libpthread.so.0 with build-id 07c8f95b4f3251d08550217ad8a1f31066229996
                Module libc.so.6 with build-id 4b406737057708c0e4c642345a703c47a61c73dc
                Module libpangocairo-1.0.so.0 with build-id 10d2af38056eee9a6b3458d8aac24095c4dfab72
                Module libxcb.so.1 with build-id 0d1ef11740a5daad2ee331e812a51aa6574af222
                Module libxkbcommon.so.0 with build-id 3a9338b2085f0af41217bc0a90ffcc941938a16e
                Module libwlroots.so.10 with build-id 79e0c855325e7cc90e3394889899d37a79643f64
                Module libwayland-server.so.0 with build-id 645526447334b85a6f4bf5a8b37737b27696365f
                Module libpixman-1.so.0 with build-id 341f793dcada3a48a306a793d265a517e3f2e7d6
                Module libGLESv2.so.2 with build-id 60702bece6c583d41116a85e1d5b3c096a28d3d7
                Module libpcre.so.1 with build-id 845483dd0acba86de9f0313102bebbaf3ce52767
                Module libglib-2.0.so.0 with build-id bd949a4794ad959019499c6afcb8f416dcff9810
                Module libgobject-2.0.so.0 with build-id e67b3a29cecdd98c3d8bd6eb7524a812331b20a2
                Module libpango-1.0.so.0 with build-id 730a8183a36afae82dd6a5564c0e490fed239a40
                Module libm.so.6 with build-id 2b8fd1f869ecab4e0b55e92f2f151897f6818acf
                Module libudev.so.1 with build-id cf0e9710c7cebd21a13840b2bc2329213cfd0192
                Module libinput.so.10 with build-id 956df35c2a15681d4aa87253ed15a5c18a339183
                Module libevdev.so.2 with build-id b62ae69f839f1b6b06ef2c1df19f25ff09b0d824
                Module libjson-c.so.5 with build-id a84d1d9e7c8fbfaf8eb5a5c6adc22d3b20de86fe
                Module libcairo.so.2 with build-id 06820af9cf79c2deb207d9533a61caf04e67a8ad
                Module sway with build-id ce1bbfc0ed4814588d821ddc522f5841c248d6f2
                Stack trace of thread 127719:
                #0  0x00007f0bc8f48d22 raise (libc.so.6 + 0x3cd22)
                #1  0x00007f0bc8f32862 abort (libc.so.6 + 0x26862)
                #2  0x00007f0bc6464ae5 n/a (iris_dri.so + 0x1b5ae5)
                #3  0x00007f0bc70e3ad5 n/a (iris_dri.so + 0xe34ad5)
                #4  0x00007f0bc64f5e28 n/a (iris_dri.so + 0x246e28)
                #5  0x00007f0bc9191227 n/a (libwlroots.so.10 + 0x35227)
                #6  0x00007f0bc91b0831 n/a (libwlroots.so.10 + 0x54831)
                #7  0x00007f0bc91b3a79 wlr_output_commit (libwlroots.so.10 + 0x57a79)
                #8  0x00005579699c862d n/a (sway + 0x2462d)
                #9  0x00005579699c8c80 n/a (sway + 0x24c80)
                #10 0x00007f0bc91e48fe wlr_signal_emit_safe (libwlroots.so.10 + 0x888fe)
                #11 0x00007f0bc91e48fe wlr_signal_emit_safe (libwlroots.so.10 + 0x888fe)
                #12 0x00007f0bc9198649 n/a (libwlroots.so.10 + 0x3c649)
                #13 0x00007f0bc8822f77 drmHandleEvent (libdrm.so.2 + 0xdf77)
                #14 0x00007f0bc919609e n/a (libwlroots.so.10 + 0x3a09e)
                #15 0x00007f0bc923c1ca wl_event_loop_dispatch (libwayland-server.so.0 + 0xb1ca)
                #16 0x00007f0bc9239d37 wl_display_run (libwayland-server.so.0 + 0x8d37)
                #17 0x00005579699b5a4a n/a (sway + 0x11a4a)
                #18 0x00007f0bc8f33b25 __libc_start_main (libc.so.6 + 0x27b25)
                #19 0x00005579699b5e0e n/a (sway + 0x11e0e)

                Stack trace of thread 127727:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127729:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127731:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127736:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127730:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127733:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127734:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127739:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127738:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127735:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127740:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127732:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127737:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127728:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)

                Stack trace of thread 127726:
                #0  0x00007f0bc8efe8ca __futex_abstimed_wait_common64 (libpthread.so.0 + 0x158ca)
                #1  0x00007f0bc8ef8270 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0 + 0xf270)
                #2  0x00007f0bc648adfc n/a (iris_dri.so + 0x1dbdfc)
                #3  0x00007f0bc6483aac n/a (iris_dri.so + 0x1d4aac)
                #4  0x00007f0bc8ef2259 start_thread (libpthread.so.0 + 0x9259)
                #5  0x00007f0bc900a5e3 __clone (libc.so.6 + 0xfe5e3)
                ELF object binary architecture: AMD x86-64

• Description:

I am running Manjaro Sway on a Dell latitude 5420 and a DELL U2518D as external monitor. The external monitor is either connected directly via HDMI or via USB-C and a Dell docking station.

Since the update to sway 1.7 I experience crashes as the one above. The symptom is that the screen on the external Dell monitor freezes, and then displays garbage. Sometimes it recovers itself after a few seconds. Sometimes it crashes and I end up on greetd login screen.

The log shows messages like this shortly before the crash:

Feb 24 12:11:13 latitude5420 kernel: Asynchronous wait on fence 0000:00:02.0:sway[43343]:1066e timed out (hint:intel_atomic_commit_ready [i915])
Feb 24 12:11:13 latitude5420 kernel: Asynchronous wait on fence 0000:00:02.0:sway[43343]:10668 timed out (hint:intel_atomic_commit_ready [i915])
Feb 24 12:11:17 latitude5420 kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 12:1:859ffffb, in sway [43343]
Feb 24 12:11:17 latitude5420 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for stopped heartbeat on rcs0
Feb 24 12:11:17 latitude5420 kernel: i915 0000:00:02.0: [drm] sway[43343] context reset due to GPU hang
Feb 24 12:11:17 latitude5420 audit[43343]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=8 subj==unconfined pid=43343 comm="sway" exe="/usr/bin/sway" sig=6 res=1
Feb 24 12:11:17 latitude5420 kernel: audit: type=1701 audit(1645701077.755:343): auid=1000 uid=1000 gid=1000 ses=8 subj==unconfined pid=43343 comm="sway" exe="/usr/bin/sway" sig=6 res=1

The issue does not seem to occur when the external monitor is not connected.