New SER5 PRO No HDMI output only VGA

apd

Just got my new SER5 pro 5800H  today and I cant get it to display using HDMI.


There is no beelink start splash screen, it goes straight to windows and it will only display in 640x480 with no options to change resolution.....UNLESS I put a VGA adapter on the HDMI cable and use an old VGA monitor. In this configuration I get the beelink start screen/enter bios and I have options to change resolution in windows.


I have reset CMOS and restarted many, many, many times.
I need the HDMI to work directly with my larger monitor.
What are my options here?

fxnoob

Splash screen not showing, could be a problem with your monitor or TV, if you use a TV. It cannot handle the boot/bios resolution. This monitor/TV worked with another PC fine before? Being able to use and change resolutions with another monitor only proves the video output is fine.

apd

The larger monitor I wish to use with the SER5 worked fine with another computer before. It also worked at 1360x768 the first time I booted the SER5 (splash screen visible), but during the windows setup routine it suddenly changed to 640x480 and cant  be changed in windows.
I've tried three different working cables, three different HDMI ports on the monitor, and the only thing that gives me another resolution is putting a VGA adapter on the HDMI cable and using an old VGA monitor.

fxnoob

This is a very weird error, I never seen it before. Try to reset bios on the pc, also if it has 2 HDMI ports, use the other. I think is not a driver error, since it doesn't show the booting screen either. Maybe Support will check and tell you what to do.

Support-03

apd replied at 2023-07-09 18:08
The larger monitor I wish to use with the SER5 worked fine with another computer before. It also wor ...

Hello there,

Did you update the windows these days ?
Please  go to device manager and check if you can roll back to the older version of the  graphic driver

apd

Ok I have replied with updates twice in the past 24hrs and they are not being posted to this thread....it keeps saying my replies "need moderator approval"

I will try for a third time:

Update:
I can get the SER5 to display in the correct 1360x786 resolution if I UNPLUG the monitor, the Plug it back in, turn it on, wait for "HDMI 1" to appear on screen, and then power up the SER5.

I will try splitting my reply into multiple posts to avoid the "moderation" requirement

apd

changes to 640x480 if I turn off the monitor and then turn it back on (SER5 powered on the whole time)

apd

or if switch the monitor to "HDMI 2" and then back to "HDMI 1"

apd

or if I change input from channel 1 to 2, and then back

apd

So basically I have to disable sleep mode and leave the monitor on all day, or else Unplug and reboot every time I walk away from my desk. This is silly.
This monitor and same HDMI port works fine with windows 10 and my old computer.