HDMI error for Desktop Image

I flashed the board with the Boot and rootfs (Debian Desktop) images from the following location.

https://www.96boards.org/documentation/consumer/dragonboard/dragonboard845c/downloads/debian.md.html

I can get access to the board over the Debug USB port, but I do not see the Desktop image on the HDMI monitor.

Here is a little excerpt from the boot log:

2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Listening on e[0;1;39mD-Bus System Message Bus Sockete[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Started e[0;1;39mTrigger anacron every houre[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Reached target e[0;1;39mTimerse[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Listening on e[0;1;39mGPS (Global P…ioning System) Daemon Socketse[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Reached target e[0;1;39mSocketse[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Reached target e[0;1;39mBasic Systeme[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Started e[0;1;39mD-Bus System Message Buse[0m.
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Started e[0;1;39mRegular background program processing daemone[0m.
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mModem Managere[0m...
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mSystem Logging Servicee[0m...
2019-11-01 11:22:50 >TX >[    6.621196] msm ae00000.mdss: HDMI-A-1: EDID is invalid:
2019-11-01 11:22:50 >TX >[    6.626616] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.633244] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.639858] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.646478] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.653098] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.659715] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.666332] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >[    6.672939] 	[00] ZERO 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mLogin Servicee[0m...
2019-11-01 11:22:50 >TX >[    6.779322] [drm:dpu_encoder_frame_done_timeout:2190] [dpu error]enc30 frame done timeout
2019-11-01 11:22:50 >TX >[    7.218644] lt9611 10-003b: video check: h_act_a=640, h_act_b=0, v_act=1, v_total=45, h_total_sysclk=0
2019-11-01 11:22:50 >TX >[    7.219308] [drm:dpu_crtc_frame_event_work [msm]] *ERROR* crtc56 ev:1 ts:6399739164 frame_pending:0
2019-11-01 11:22:50 >TX >[    7.219310] Console: switching to colour frame buffer device 80x30
2019-11-01 11:22:50 >TX >[    7.267478] msm ae00000.mdss: fb0: msmdrmfb frame buffer device
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mLSB: Load kernel …d to enable cpufreq scalinge[0m...
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mRestore /etc/[    7.297340] msm-snd-db845c sound: error reso… the ppp link was shut d[    7.31002owne[0m...
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mDisk Managere[0m...
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mInitialize hardware monitoring sensorse[0m...
2019-11-01 11:22:50 >TX >[e[0;32m  OK  e[0m] Started e[0;1;39mRun anacron jobse[0m.
2019-11-01 11:22:50 >TX >         Starting e[0;1;39mWPA supplicante[0m...

What am I missing while flashing the board?

@ndec
I was planning on reporting this but wanted to see if others had issues as well. Seems to be the case.
I’ve had issues as well, first i thought it was my pre-production board but then i got the retail v2. At SAN19 all the displays worked fine so I didn’t bother.
Back home again, and still only one of my monitor works with a fixed resolution of 1920x1080 (original is 2560x1080) and other two monitors, one 1920x1080 and the other 800x480 do not respond. I have a hdmi capture card and that gives out very flickery image.

Tl;dr
Looks like rb3 might have some hdmi display (in)compatibility issues.