Display issues with different edge V pro models

I have purchased four Khadas edge-v pro, and one of the three will drive my usb-c monitor (3840x1930 / 75hz), the other three will not.

They will all drive and power an HD usb-c monitor.

I am running Android 10 using https://dl.khadas.com/products/edge/firmware/Android/Edge_Qt_V210630.7z

Here is Sméagol from non working (snip)

[   38.244747] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   38.246837] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[   38.247557] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 7
[   38.251419] xhci-hcd xhci-hcd.6.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x0000005002030010
[   38.251470] xhci-hcd xhci-hcd.6.auto: irq 78, io mem 0xfe800000
[   38.251927] usb usb7: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[   38.251949] usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   38.251957] usb usb7: Product: xHCI Host Controller
[   38.251964] usb usb7: Manufacturer: Linux 4.19.111 xhci-hcd
[   38.251971] usb usb7: SerialNumber: xhci-hcd.6.auto
[   38.253487] hub 7-0:1.0: USB hub found
[   38.253530] hub 7-0:1.0: 1 port detected
[   38.254173] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[   38.255166] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 8
[   38.255198] xhci-hcd xhci-hcd.6.auto: Host supports USB 3.0 SuperSpeed
[   38.255260] usb usb8: We don't know the algorithms for LPM for this host, disabling LPM.
[   38.255348] usb usb8: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[   38.255358] usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   38.255366] usb usb8: Product: xHCI Host Controller
[   38.255383] usb usb8: Manufacturer: Linux 4.19.111 xhci-hcd
[   38.255391] usb usb8: SerialNumber: xhci-hcd.6.auto
[   38.257152] hub 8-0:1.0: USB hub found
[   38.257194] hub 8-0:1.0: 1 port detected
[   39.018991] fusb302 8-0022: PD connected as DFP, supporting 5V
[   39.162691] fusb302 8-0022: DP config successful, pin_assignment 0x4
[   39.173757] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   39.178125] fusb302 8-0022: attention, dp_status 82
[   39.184328] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
[   39.621305] ------------[ cut here ]------------
[   39.621514] WARNING: CPU: 1 PID: 291 at drivers/gpu/drm/rockchip/rockchip_drm_vop.c:2180 vop_crtc_enable_vblank+0x394/0x4d0
[   39.621536] Modules linked in: bcmdhd
[   39.621572] CPU: 1 PID: 291 Comm: composer@2.1-se Not tainted 4.19.111 #14
[   39.621588] Hardware name: Khadas,edge (DT)
[   39.621610] pstate: 40400085 (nZcv daIf +PAN -UAO)
[   39.621635] pc : vop_crtc_enable_vblank+0x394/0x4d0
[   39.621660] lr : vop_crtc_enable_vblank+0x394/0x4d0
[   39.621675] sp : ffffff800bdb3ae0
[   39.621691] x29: ffffff800bdb3ae0 x28: 0000000000000178 
[   39.621715] x27: 0000000000000003 x26: ffffffc0edefea00 
[   39.621738] x25: ffffffc0f051a3a0 x24: 0000000000000000 
[   39.621760] x23: ffffffc0f051a1c8 x22: 0000000000000001 
[   39.621783] x21: 0000000000000000 x20: ffffffc0ef51c080 
[   39.621805] x19: ffffffc0f051a000 x18: ffffffffffffffff 
[   39.621828] x17: 0000000000000000 x16: 0000000000000000 
[   39.621851] x15: ffffff80097dda48 x14: ffffff80899b5e77 
[   39.621872] x13: 0000000000000000 x12: 0000000000000001 
[   39.621894] x11: 0000000000000000 x10: 00000000000f8b4c 
[   39.621916] x9 : 00000000000faee5 x8 : 0000000000000381 
[   39.621937] x7 : 0000000000000030 x6 : ffffffc0f6f07958 
[   39.621960] x5 : ffffffc0f6f07958 x4 : 0000000000000000 
[   39.621982] x3 : ffffffc0f6f10708 x2 : 5195f990827a4700 
[   39.622003] x1 : 0000000000000000 x0 : 0000000000000024 
[   39.622027] 
[   39.622027] PC: 0xffffff8008647c5c:
[   39.622046] 7c5c  52800007 12000844 6b04017f 54fff541 79406d24 12001d4a d3462484 6b0a009f
[   39.622092] 7c7c  54fff4a8 3940dd24 d3421484 6b04015f 54fff189 35ffe9c3 17ffffa0 f9400128
[   39.622135] 7c9c  52800005 52800006 52800001 52800027 b861d904 1ac120e3 11000421 36780064
[   39.622177] 7cbc  2a0300c6 2a0300a5 6b02003f 54ffff21 17ffffc6 d0005f20 9105c000 97eb6531
[   39.622219] 7cdc  d4210000 12800000 a94153f3 a8c27bfd d65f03c0 f9431685 d3424028 0a0700c3
[   39.622262] 7cfc  1ac420c2 1ac42063 b86878a4 0a220082 2a030042 b82878a2 17ffff77 f9431685
[   39.622304] 7d1c  d3424028 0a0700c3 1ac420c2 1ac42063 b86878a4 0a220082 2a030042 b82878a2
[   39.622346] 7d3c  17ffff56 b9453683 12000844 6b43209f 54ffe5c1 79405524 12001c63 d3462484
[   39.622390] 
[   39.622390] LR: 0xffffff8008647c5c:
[   39.622408] 7c5c  52800007 12000844 6b04017f 54fff541 79406d24 12001d4a d3462484 6b0a009f
[   39.622451] 7c7c  54fff4a8 3940dd24 d3421484 6b04015f 54fff189 35ffe9c3 17ffffa0 f9400128
[   39.622493] 7c9c  52800005 52800006 52800001 52800027 b861d904 1ac120e3 11000421 36780064
[   39.622535] 7cbc  2a0300c6 2a0300a5 6b02003f 54ffff21 17ffffc6 d0005f20 9105c000 97eb6531
[   39.622577] 7cdc  d4210000 12800000 a94153f3 a8c27bfd d65f03c0 f9431685 d3424028 0a0700c3
[   39.622619] 7cfc  1ac420c2 1ac42063 b86878a4 0a220082 2a030042 b82878a2 17ffff77 f9431685
[   39.622661] 7d1c  d3424028 0a0700c3 1ac420c2 1ac42063 b86878a4 0a220082 2a030042 b82878a2
[   39.622702] 7d3c  17ffff56 b9453683 12000844 6b43209f 54ffe5c1 79405524 12001c63 d3462484
[   39.622747] 
[   39.622747] SP: 0xffffff800bdb3a60:
[   39.622765] 3a60  00000000 00000000 f051a3a0 ffffffc0 edefea00 ffffffc0 00000003 00000000
[   39.622807] 3a80  00000178 00000000 0bdb3ae0 ffffff80 08647cdc ffffff80 0bdb3ae0 ffffff80
[   39.622848] 3aa0  08647cdc ffffff80 40400085 00000000 00000001 00000000 f051a3a0 ffffffc0
[   39.622890] 3ac0  ffffffff 0000007f 0bdb3d20 ffffff80 0bdb3ae0 ffffff80 08647cdc ffffff80
[   39.622932] 3ae0  0bdb3b00 ffffff80 08633b9c ffffff80 f051a000 ffffffc0 ef516978 ffffffc0
[   39.622974] 3b00  0bdb3b40 ffffff80 08633d3c ffffff80 ef516978 ffffffc0 f051a000 ffffffc0
[   39.623016] 3b20  00000001 00000000 f051a1cc ffffffc0 00000000 00000000 00000012 00000000
[   39.623057] 3b40  0bdb3b80 ffffff80 08634e74 ffffff80 00000001 00000000 f051a000 ffffffc0
[   39.623097] 
[   39.623097] X3: 0xffffffc0f6f10688:
[   39.623104] 0688  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623117] 06a8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623130] 06c8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623143] 06e8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623155] 0708  f6f07958 ffffffc0 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623168] 0728  00000000 00000000 00000000 00000000 00000000 00000000 081c8da0 ffffff80
[   39.623181] 0748  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623195] 0768  f6f10768 ffffffc0 f6f10768 ffffffc0 00000000 00000000 00000000 00000000
[   39.623209] 
[   39.623209] X5: 0xffffffc0f6f078d8:
[   39.623216] 78d8  125ad6f6 00000000 00000000 a6b21aaf 25dae30e 00000000 399e0599 00000009
[   39.623230] 78f8  00000000 00000000 29207380 125ad6f6 00000000 00000000 a6963d61 25097dec
[   39.623244] 7918  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623257] 7938  00000000 00000000 f020e380 ffffffc0 00000001 00000000 00000007 00000000
[   39.623271] 7958  00000000 00000000 0811fa38 ffffff80 00000000 00000000 00000000 00000000
[   39.623284] 7978  00000000 00000000 00000000 00000000 08121320 ffffff80 00000000 00000000
[   39.623298] 7998  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623311] 79b8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623326] 
[   39.623326] X6: 0xffffffc0f6f078d8:
[   39.623332] 78d8  125ad6f6 00000000 00000000 a6b21aaf 25dae30e 00000000 399e0599 00000009
[   39.623345] 78f8  00000000 00000000 29207380 125ad6f6 00000000 00000000 a6963d61 25097dec
[   39.623359] 7918  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623372] 7938  00000000 00000000 f020e380 ffffffc0 00000001 00000000 00000007 00000000
[   39.623386] 7958  00000000 00000000 0811fa38 ffffff80 00000000 00000000 00000000 00000000
[   39.623399] 7978  00000000 00000000 00000000 00000000 08121320 ffffff80 00000000 00000000
[   39.623412] 7998  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623426] 79b8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.623443] 
[   39.623443] X14: 0xffffff80899b5df7:
[   39.623450] 5df4  ******** ******** ******** ******** ******** ******** ******** ********
[   39.623475] 5e14  ******** ******** ******** ******** ******** ******** ******** ********
[   39.623490] 5e34  ******** ******** ******** ******** ******** ******** ******** ********
[   39.623507] 5e54  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641407] 5e74  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641423] 5e94  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641438] 5eb4  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641453] 5ed4  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641467] 5ef4  ******** ******** ******** ******** ******** ******** ******** ********
[   39.641484] 
[   39.641484] X15: 0xffffff80097dd9c8:
[   39.641490] d9c8  00000000 00000000
[   39.641512] rockchip-vop ff900000.vop: [drm:vop_crtc_atomic_enable] Update mode to 3840x1920p75, type: 10
[   39.641513]  00000000 00000000 00000000 00000000 00000000 00000000
[   39.641534] d9e8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641546] da08  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641566] da28  00000000 00000000 00000000 00000000 00000000 00000000 00000002 00000100
[   39.641583] da48  827a4700 5195f990 ffffffff 00000100 00000000 00000000 000008ff 00000000
[   39.641598] da68  0037b0d6 0000001f 01000000 00000000 00000000 00000000 0000003f 00000000
[   39.641612] da88  0000003f 00000000 0000003f 00000000 0000003f 00000000 00000100 00000000
[   39.641626] daa8  0a2ca600 ffffffc0 0a2ca800 ffffffc0 0a2caa00 ffffffc0 0a2cac00 ffffffc0
[   39.641643] 
[   39.641643] X19: 0xffffffc0f0519f80:
[   39.641649] 9f80  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641664] 9fa0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641678] 9fc0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641692] 9fe0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641707] a000  00000000 00000000 00000000 00000000 00000000 0000005f f1069010 ffffffc0
[   39.641721] a020  09875680 ffffff80 ef514080 ffffffc0 ef4d2880 ffffffc0 ef4d2780 ffffffc0
[   39.641736] a040  00000001 00000000 efda6600 ffffffc0 00000000 00000000 ef0c8258 ffffffc0
[   39.641751] a060  ef4d2b00 ffffffc0 00000000 00000000 00000000 00000000 f051a078 ffffffc0
[   39.641766] 
[   39.641766] X20: 0xffffffc0ef51c000:
[   39.641773] c000  ef4e0900 ffffffc0 ef4e1780 ffffffc0 086e98c8 ffffff80 00000000 00000000
[   39.641788] c020  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641802] c040  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641816] c060  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641830] c080  f051a000 ffffffc0 f6fbb4d8 ffffffc0 f051a3a0 ffffffc0 ef518090 ffffffc0
[   39.641845] c0a0  ef4e2500 ffffffc0 edea8000 ffffffc0 00000000 00000000 ef51c0b8 ffffffc0
[   39.641859] c0c0  ef51c0b8 ffffffc0 0bdabbf0 ffffff80 ef5180d0 ffffffc0 f051a278 ffffffc0
[   39.641874] c0e0  00000041 cccccccc ef51c328 ffffffc0 00000000 00000000 00000000 00000000
[   39.641891] 
[   39.641891] X23: 0xffffffc0f051a148:
[   39.641897] a148  f051a148 ffffffc0 f051a148 ffffffc0 00000000 00000000 00000000 00000000
[   39.641912] a168  f051a168 ffffffc0 f051a168 ffffffc0 00000000 00000000 00000000 00000000
[   39.641927] a188  00000000 00000000 f051a190 ffffffc0 f051a190 ffffffc0 00000000 00000000
[   39.641942] a1a8  00000000 00000000 00000000 00000001 00000000 00000000 ef516800 ffffffc0
[   39.641956] a1c8  00000001 00000001 00000000 00000000 f051a1d8 ffffffc0 f051a1d8 ffffffc0
[   39.641971] a1e8  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641985] a208  00000002 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.641999] a228  00000000 00000000 00000000 00000000 00000000 00000000 f051a240 ffffffc0
[   39.642015] 
[   39.642015] X25: 0xffffffc0f051a320:
[   39.642022] a320  00000000 02400004 0000001e 00000000 f16890a8 ffffffc0 f0afe110 ffffffc0
[   39.642037] a340  00000000 00000000 ffffffe0 0000000f f051a350 ffffffc0 f051a350 ffffffc0
[   39.642051] a360  0862b520 ffffff80 00000003 00000000 f16894e8 ffffffc0 f0afe088 ffffffc0
[   39.642066] a380  0000000f 00000000 ef518b58 ffffffc0 ef51ead8 ffffffc0 00000002 00000000
[   39.642080] a3a0  ef518090 ffffffc0 ef51c090 ffffffc0 ef4d2d00 ffffffc0 ef4f3b00 ffffffc0
[   39.642095] a3c0  00000000 00000000 00002000 00002000 08f14778 ffffff80 00000000 00000000
[   39.642116] a3e0  00000101 00000000 00000080 00000000 f051a3f0 ffffffc0 f051a3f0 ffffffc0
[   39.642151] a400  085fb2f0 ffffff80 00000200 dead0000 00000000 00000000 fffb9d50 00000000
[   39.642182] 
[   39.642182] X26: 0xffffffc0edefe980:
[   39.642188] e980  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.642202] e9a0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.642216] e9c0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.642231] e9e0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   39.642246] ea00  0000004f 00000000 efda6600 ffffffc0 ee6c8680 ffffffc0 00000000 00000000
[   39.642287] ea20  f051a0d8 ffffffc0 ed4c6c20 ffffffc0 ef4d2880 ffffffc0 00000000 02000004
[   39.642326] ea40  00000000 00000000 00000001 00000000 00000000 00000000 00000000 00000000
[   39.642354] ea60  00000000 00000000 00000000 00000000 00000000 00000000 eca26200 ffffffc0
[   39.642370] 
[   39.642370] X29: 0xffffff800bdb3a60:
[   39.642377] 3a60  00000000 00000000 f051a3a0 ffffffc0 edefea00 ffffffc0 00000003 00000000
[   39.642391] 3a80  00000178 00000000 0bdb3ae0 ffffff80 08647cdc ffffff80 0bdb3ae0 ffffff80
[   39.642405] 3aa0  08647cdc ffffff80 40400085 00000000 00000001 00000000 f051a3a0 ffffffc0
[   39.642419] 3ac0  ffffffff 0000007f 0bdb3d20 ffffff80 0bdb3ae0 ffffff80 08647cdc ffffff80
[   39.642434] 3ae0  0bdb3b00 ffffff80 08633b9c ffffff80 f051a000 ffffffc0 ef516978 ffffffc0
[   39.642449] 3b00  0bdb3b40 ffffff80 08633d3c ffffff80 ef516978 ffffffc0 f051a000 ffffffc0
[   39.642463] 3b20  00000001 00000000 f051a1cc ffffffc0 00000000 00000000 00000012 00000000
[   39.642478] 3b40  0bdb3b80 ffffff80 08634e74 ffffff80 00000001 00000000 f051a000 ffffffc0
[   39.642492] 
[   39.642498] Call trace:
[   39.642511]  vop_crtc_enable_vblank+0x394/0x4d0
[   39.642522]  drm_vblank_enable+0x9c/0x180
[   39.642531]  drm_vblank_get+0xbc/0xe8
[   39.642539]  drm_wait_vblank_ioctl+0x124/0x578
[   39.642548]  drm_ioctl_kernel+0xb0/0xf8
[   39.642556]  drm_ioctl+0x314/0x470
[   39.642566]  do_vfs_ioctl+0xbc/0xda8
[   39.642573]  ksys_ioctl+0x84/0x98
[   39.642582]  __arm64_sys_ioctl+0x18/0x28
[   39.642593]  el0_svc_common.constprop.0+0xb8/0x178
[   39.642601]  el0_svc_handler+0x28/0x78
[   39.642609]  el0_svc+0x8/0xc
[   39.642616] ---[ end trace 32e49cb37f04b7cd ]---
[   43.061238] type=1400 audit(1625018959.129:110): avc: denied { call } for comm="HwBinder:264_1" scontext=u:r:hal_graphics_allocator_default:s0 tcontext=u:r:ashmemd:s0 tclass=binder permissive=1
[   43.061301] type=1400 audit(1625018972.416:111): avc: denied { read } for comm="memtrack@1.0-se" name="mem_profile" dev="debugfs" ino=46227 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.061448] type=1400 audit(1625018972.416:111): avc: denied { read } for comm="memtrack@1.0-se" name="mem_profile" dev="debugfs" ino=46227 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.061479] type=1400 audit(1625018972.416:112): avc: denied { open } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/844_5/mem_profile" dev="debugfs" ino=46227 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.061574] type=1400 audit(1625018972.416:112): avc: denied { open } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/844_5/mem_profile" dev="debugfs" ino=46227 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.061605] type=1400 audit(1625018972.416:113): avc: denied { getattr } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/844_5/mem_profile" dev="debugfs" ino=46227 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   47.827739] [dhd-wlan0] wl_run_escan : LEGACY_SCAN sync ID: 1, bssidx: 0

console:/ $ [   51.702300] fusb302 8-0022: connection has disconnected
[   51.723130] xhci-hcd xhci-hcd.6.auto: remove, state 4
[   51.723200] usb usb8: USB disconnect, device number 1
[   51.724192] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   51.725626] xhci-hcd xhci-hcd.6.auto: USB bus 8 deregistered
[   51.725998] xhci-hcd xhci-hcd.6.auto: remove, state 4
[   51.726020] usb usb7: USB disconnect, device number 1
[   51.726831] xhci-hcd xhci-hcd.6.auto: USB bus 7 deregistered
[   52.399412] phy phy-ff770000.syscon:usb2-phy@e450.10: charger = INVALID_CHARGER

And from working:

[   38.922681] fusb302 8-0022: CC connected in CC1 as DFP
[   38.944222] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   38.946071] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[   38.949155] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 7
[   38.951906] xhci-hcd xhci-hcd.6.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x0000005002030010
[   38.951958] xhci-hcd xhci-hcd.6.auto: irq 78, io mem 0xfe800000
[   38.952390] usb usb7: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[   38.952400] usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   38.952424] usb usb7: Product: xHCI Host Controller
[   38.952431] usb usb7: Manufacturer: Linux 4.19.111 xhci-hcd
[   38.952438] usb usb7: SerialNumber: xhci-hcd.6.auto
[   38.954347] hub 7-0:1.0: USB hub found
[   38.954391] hub 7-0:1.0: 1 port detected
[   38.955045] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[   38.956123] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 8
[   38.956147] xhci-hcd xhci-hcd.6.auto: Host supports USB 3.0 SuperSpeed
[   38.956207] usb usb8: We don't know the algorithms for LPM for this host, disabling LPM.
[   38.956294] usb usb8: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[   38.956308] usb usb8: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   38.956316] usb usb8: Product: xHCI Host Controller
[   38.956324] usb usb8: Manufacturer: Linux 4.19.111 xhci-hcd
[   38.956341] usb usb8: SerialNumber: xhci-hcd.6.auto
[   38.957959] hub 8-0:1.0: USB hub found
[   38.958029] hub 8-0:1.0: 1 port detected
[   39.714119] fusb302 8-0022: PD connected as DFP, supporting 5V
[   39.855402] fusb302 8-0022: DP config successful, pin_assignment 0x4
[   39.866229] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   39.870028] fusb302 8-0022: attention, dp_status 82
[   39.873138] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
[   40.321832] rockchip-vop ff900000.vop: [drm:vop_crtc_atomic_enable] Update mode to 3840x1920p75, type: 10
[   43.265017] type=1400 audit(1625018959.535:123): avc: denied { associate } for comm="Binder:250_3" name="globalAlert" scontext=u:object_r:proc_net:s0 tcontext=u:object_r:proc:s0 tclass=filesystem permissive=1
[   43.265076] type=1400 audit(1646698318.009:124): avc: denied { read } for comm="memtrack@1.0-se" name="mem_profile" dev="debugfs" ino=44625 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.265219] type=1400 audit(1646698318.009:124): avc: denied { read } for comm="memtrack@1.0-se" name="mem_profile" dev="debugfs" ino=44625 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.265240] type=1400 audit(1646698318.010:125): avc: denied { open } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/847_4/mem_profile" dev="debugfs" ino=44625 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.265318] type=1400 audit(1646698318.010:125): avc: denied { open } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/847_4/mem_profile" dev="debugfs" ino=44625 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1
[   43.265338] type=1400 audit(1646698318.010:126): avc: denied { getattr } for comm="memtrack@1.0-se" path="/sys/kernel/debug/mali0/ctx/847_4/mem_profile" dev="debugfs" ino=44625 scontext=u:r:hal_memtrack_default:s0 tcontext=u:object_r:debugfs:s0 tclass=file permissive=1

console:/ $ 
console:/ $ [   46.483114] fusb302 8-0022: connection has disconnected
[   46.505875] xhci-hcd xhci-hcd.6.auto: remove, state 4
[   46.505946] usb usb8: USB disconnect, device number 1
[   46.508222] xhci-hcd xhci-hcd.6.auto: USB bus 8 deregistered
[   46.508950] xhci-hcd xhci-hcd.6.auto: remove, state 4
[   46.508977] usb usb7: USB disconnect, device number 1
[   46.509303] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   46.510087] xhci-hcd xhci-hcd.6.auto: USB bus 7 deregistered
[   47.191117] phy phy-ff770000.syscon:usb2-phy@e450.10: charger = INVALID_CHARGER
[   47.833284] [dhd-wlan0] wl_run_escan : LEGACY_SCAN sync ID: 1, bssidx: 0

@Jordan_Boss Edge_Pie_V191227.7z
Can you try the latest firmware of Android 9.0 to see what the phenomenon is and give it back to me?

I will try this in the morning!

I have installed Edge_Pie_V19227 update.img via USB-C on Ubuntu with rk-burn-tool, and the display still won’t turn on, but I have different errors.

First, I will supply the hotplug dmesg (this is what happens directly after hotplugging the display),

Android 9 on the Khadas edge-v pro that doesn’t work:

[   61.471804] fusb302 8-0022: PD connected as DFP, supporting 5V
[   61.586646] fusb302 8-0022: DP config successful, pin_assignment 0x4
[   61.588821] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[   61.596058] fusb302 8-0022: attention, dp_status 82
[   61.596756] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
[   61.826613] rockchip-vop ff900000.vop: [drm:vop_crtc_enable] Update mode to 3840x1920p75, type: 10
[   62.134468] vop_isr: 443 callbacks suppressed
[   62.134731] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.147038] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.147490] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.147580] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.160074] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.160313] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.160361] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.160814] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.173388] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err
[   62.173671] rockchip-vop ff900000.vop: [drm:vop_isr] *ERROR* POST_BUF_EMPTY irq err

Android 10 on the Khadas edge-v pro that does work:

[  159.861918] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[  159.863689] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[  159.864886] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 5
[  159.870371] xhci-hcd xhci-hcd.6.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x0000005002030010
[  159.870426] xhci-hcd xhci-hcd.6.auto: irq 78, io mem 0xfe800000
[  159.870893] usb usb5: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[  159.870909] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[  159.870926] usb usb5: Product: xHCI Host Controller
[  159.870941] usb usb5: Manufacturer: Linux 4.19.111 xhci-hcd
[  159.870949] usb usb5: SerialNumber: xhci-hcd.6.auto
[  159.872404] hub 5-0:1.0: USB hub found
[  159.872444] hub 5-0:1.0: 1 port detected
[  159.873197] xhci-hcd xhci-hcd.6.auto: xHCI Host Controller
[  159.874209] xhci-hcd xhci-hcd.6.auto: new USB bus registered, assigned bus number 6
[  159.874237] xhci-hcd xhci-hcd.6.auto: Host supports USB 3.0 SuperSpeed
[  159.874298] usb usb6: We don't know the algorithms for LPM for this host, disabling LPM.
[  159.874385] usb usb6: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[  159.874398] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[  159.874409] usb usb6: Product: xHCI Host Controller
[  159.874423] usb usb6: Manufacturer: Linux 4.19.111 xhci-hcd
[  159.874430] usb usb6: SerialNumber: xhci-hcd.6.auto
[  159.876007] hub 6-0:1.0: USB hub found
[  159.876050] hub 6-0:1.0: 1 port detected
[  160.640094] fusb302 8-0022: PD connected as DFP, supporting 5V
[  160.785307] fusb302 8-0022: DP config successful, pin_assignment 0x4
[  160.796959] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[  160.802902] fusb302 8-0022: attention, dp_status 82
[  160.809549] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
[  161.267639] rockchip-vop ff900000.vop: [drm:vop_crtc_atomic_enable] Update mode to 3840x1920p75, type: 10
[  161.431261] vop_isr: 982 callbacks suppressed

Android 9 bootup dmesg (displays plugged in, non-working Khadas edge-v pro):

Android9dmesg

Android 10 bootup dmesg (displays plugged in, working Khadas edge-v pro):

Android10dmesg

@Jordan_Boss I provided your log to the original rockchip factory and got the following reply:
Rk3399 does not support 4K@75hz. Maximum supportable 4K@60hz.

So the working model is somehow a fluke? Still unsure why one would work

Is there a way to force frame rate? This monitor will display 4k/60, can I choose that resolution/frame rate?

Not sure how to do this.

Looks like we are having a similar issue with Ubuntu.

Are you able to connect with UART (minicom)?

Yes, I am connected through the TTL UART

What are the settings for minicom?

Only getting a few lines of nonsense then it stops displaying however, heartbeat is still going on Edge V.

Mine seems to have more issues.

Tried to even get it to burn buster to emmc and it just died in the middle of that. Removed the M2 board and heatsink and it still does it.

Did get back into K by hot plugging the HDMI after getting a heartbeat. Reset to factory and that did not help.

I use kermit for my debugging on this board, but minicom should work. Maybe the breaks are messed up.

Baud rate: 1500000

the .kermrc is:
set line /dev/ttyUSB0 // this should be your usb serial adapter
set speed 1500000
set carrier-watch off
set handshake none
set flow-control none
robust
set file type bin
set file name lit
set rec pack 1000
set send pack 1000

1 Like

@goenjoy I have changed the monitor to not enable anyhting over 60hz, but I still am unable to see the monitor on 3 devices, and can see the monitor on 1 device.

The DMESG looks like this for the failed system, running Anddroid 9 (latest):

[  236.293484] fusb302 8-0022: PD connected as DFP, supporting 5V
[  236.410285] fusb302 8-0022: DP config successful, pin_assignment 0x4
[  236.412288] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn
[  236.419641] fusb302 8-0022: attention, dp_status 82
[  236.420199] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
[  236.651250] rockchip-vop ff900000.vop: [drm:vop_crtc_enable] Update mode to 3840x1920p60, type: 10

It works fine after setting it with the correct Baud rate, thank you.

Mine is crashing on thermal when trying to fully erase emmc.
@Jordan_Boss

-Boot SPL 2021.07 (Nov 12 2021 - 11:31:22 +0800)
*** BOOT_SOURCE_ID 5 (2:emmc 3:spi 5:sd …)***
spl_boot: MMC1 > MMC2 > MMC1 >
Trying to boot from MMC1
mmc_load_image_raw_sector: mmc block read error
Trying to boot from MMC2

U-Boot 2021.07 (Nov 12 2021 - 11:31:22 +0800)

SoC: Rockchip rk3399
Reset cause: THERMAL
Model: Khadas Edge-V
DRAM: 3.9 GiB
PMIC: RK808
MMC: mmc@fe310000: 2, mmc@fe320000: 1, sdhci@fe330000: 0
Loading Environment from MMC… *** Warning - bad CRC, using default environment

Here it is when it hits the dirt

| | __ __ _ ___ ___ | / | / |/ |
| _| | '
/ ` / |/ _ \ / _ \ |/| | |/| | |
| |
| | | (
| _
\ / | / | | | | | | |
|
__|
| _
,
|/_| _|| ||| ||___|

[i] full clean mode 29.1G - 31268536320 bytes! plz wait…
11.0GiB 0:01:40 [ 109MiB/s] [===========> ] 37% ETA 0:02:44

With this crash even the LEDs go out.

[i] full clean mode 29.1G - 31268536320 bytes! plz wait…
22.2GiB 0:03:25 [ 109MiB/s] [========================> ] 76% ETA 0:01:04

That is the second attempt.

Board has passive heatsink on and m2 board installed.

I wonder if they will replace this one?

It also gives similar output as before:

[ 48.431004] rockchip-vop ff900000.vop: [drm:vop_plane_atomic_update] ERROR not allow yrgb ver scale
[ 49.716496] vop_isr: 161343 callbacks suppressed
[ 49.716533] rockchip-vop ff900000.vop: [drm:vop_isr] ERROR POST_BUF_EMPTY irq err

a 4k monitor (3840x2160p60) does not have these issues. Is it an issue with the resolution? as we have hard set the monitor to 60hz

I just gave up and ordered another board. Pretty sure mine is just a bad one.

Verify with Android 10.0 firmware and provide corresponding log.

Here is the log. and still unable.
Android10/3840x1920p60_dmesg