[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] shaowd:
Adding the SELinux rule does not help.

01-08 08:10:14.235 0 0 E init : Control message: Could not find 'vendor.lineage.livedisplay@2.0::IDisplayModes/default' for ctl.interface_start from pid: 586 (/system/bin/hwservicemanager)
01-08 08:10:15.237 0 0 E init : Control message: Could not find 'vendor.lineage.livedisplay@2.0::IDisplayModes/default' for ctl.interface_start from pid: 586 (/system/bin/hwservicemanager)
01-08 08:10:18.238 0 0 E init : Control message: Could not find 'vendor.lineage.livedisplay@2.0::IDisplayModes/default' for ctl.interface_start from pid: 586 (/system/bin/hwservicemanager)
01-08 08:10:18.837 3861 3861 E ProcessState: Binder driver /dev/vndbinder is unavailable. Using /dev/binder instead.
01-08 08:10:18.840 3861 3861 F lineage.livedisplay@2.0-impl-sdm: Failed to initialize SDM backend
01-08 08:10:18.840 3861 3861 F libc : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 3861 (lineage.livedis), pid 3861 (lineage.livedis)
01-08 08:10:18.853 3864 3864 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-08 08:10:18.853 3864 3864 F DEBUG : Build fingerprint: 'OnePlus/OnePlus6T/OnePlus6T:11/RQ3A.211001.001/1141:userdebug/release-keys'
01-08 08:10:18.853 3864 3864 F DEBUG : Revision: '0'
01-08 08:10:18.853 3864 3864 F DEBUG : ABI: 'arm64'
01-08 08:10:18.853 3864 3864 F DEBUG : Timestamp: 2022-01-08 08:10:18+0800
01-08 08:10:18.853 3864 3864 F DEBUG : pid: 3861, tid: 3861, name: lineage.livedis >>> /system_ext/bin/hw/lineage.livedisplay@2.1-service.oneplus_sdm845 <<<
01-08 08:10:18.853 3864 3864 F DEBUG : uid: 1000
01-08 08:10:18.854 3864 3864 F DEBUG : signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
01-08 08:10:18.854 3864 3864 F DEBUG : Abort message: 'Failed to initialize SDM backend'
01-08 08:10:18.854 3864 3864 F DEBUG : x0 0000000000000000 x1 0000000000000f15 x2 0000000000000006 x3 0000007ff4239d20
01-08 08:10:18.854 3864 3864 F DEBUG : x4 0000000000000000 x5 0000000000000000 x6 0000000000000000 x7 00000000000039b8
01-08 08:10:18.854 3864 3864 F DEBUG : x8 00000000000000f0 x9 2c5d728d1922e1bf x10 0000000000000000 x11 ffffffc0ffffffdf
01-08 08:10:18.854 3864 3864 F DEBUG : x12 0000000000000001 x13 0000000000000021 x14 00311d3de7038400 x15 0000f71a4293c07b
01-08 08:10:18.854 3864 3864 F DEBUG : x16 0000007e34702c80 x17 0000007e346e4c10 x18 0000007e353d0000 x19 0000000000000f15
01-08 08:10:18.854 3864 3864 F DEBUG : x20 0000000000000f15 x21 00000000ffffffff x22 0000007e34c96000 x23 0000007e34c96000
01-08 08:10:18.854 3864 3864 F DEBUG : x24 0000007e34c96000 x25 0000000000000000 x26 0000000000000000 x27 0000000000000000
01-08 08:10:18.854 3864 3864 F DEBUG : x28 0000000000000000 x29 0000007ff4239da0
01-08 08:10:18.854 3864 3864 F DEBUG : lr 0000007e346972a0 sp 0000007ff4239d00 pc 0000007e346972cc pst 0000000000000000
01-08 08:10:18.855 3864 3864 F DEBUG : backtrace:
01-08 08:10:18.855 3864 3864 F DEBUG : #00 pc 000000000004e2cc /apex/com.android.runtime/lib64/bionic/libc.so (abort+164) (BuildId: be9c72fe4db37cd191b589b74d090d13)
01-08 08:10:18.856 3864 3864 F DEBUG : #01 pc 00000000000062b0 /system/lib64/liblog.so (__android_log_default_aborter+12) (BuildId: b5b2ed9d2859e7c956635d8bdb685c6f)
01-08 08:10:18.856 3864 3864 F DEBUG : #02 pc 0000000000012fa4 /system/lib64/libbase.so (android::base::LogMessage::~LogMessage()+320) (BuildId: 5ddeb405cbf5aa6e6ee96e6f09211cdd)
01-08 08:10:18.856 3864 3864 F DEBUG : #03 pc 000000000000813c /system/system_ext/bin/hw/lineage.livedisplay@2.1-service.oneplus_sdm845 (vendor::lineage::livedisplay::V2_0::sdm::SDMController::SDMController()+1100) (BuildId: 9d3fd6920828a68a9353e2786aa32f70)
01-08 08:10:18.856 3864 3864 F DEBUG : #04 pc 000000000000d114 /system/system_ext/bin/hw/lineage.livedisplay@2.1-service.oneplus_sdm845 (main+152) (BuildId: 9d3fd6920828a68a9353e2786aa32f70)
01-08 08:10:18.856 3864 3864 F DEBUG : #05 pc 000000000004988c /apex/com.android.runtime/lib64/bionic/libc.so (__libc_init+108) (BuildId: be9c72fe4db37cd191b589b74d090d13)
01-08 08:10:18.864 3864 3864 E crash_dump64: AM data write failed: Broken pipe
01-08 08:10:18.865 753 753 E tombstoned: Tombstone written to: /data/tombstones/tombstone_10