Beelink SEI12 i5-12450H HDMI legacy display issue

bildin

I have SEI12 12450H model with HDMI + DisplayPort output ports.

At first I met issue connecting display with passive DisplayPort adapters. So, how I see now it won't work - active displays work excellent.
But seller recommended me to update Intel Arc Iris Xe Graphics driver. After I had updated to the latest driver I met a new issue - there is no HDMI signal for old displays now. I have rolled back update, but problem still remains. I have mentioned a warning about OEM customizations removement from Intel later... I think this causes my problem:

I tried to clear CMOS, reinstall whole system from images provided by support in other threads (using WINPE), but still can't get video signal from HDMI port using direct HDMI-cable on some monitors (HDMI < 2.0). Even when BIOS is starting there is no signal. Only one way I can get video signal is workaround connecting those monitors with HDMI 2.0b audio extractor with EDID emulation.

Is there any way to fix this issue? Maybe flashing BIOS or writing something to flash memory will help?

Support-03

Hello there,

Please try to uninstall the graphic driver in the device manager and then reinstall it, here is  the Driver https://beelink.oss-cn-hongkong. ... %201235UDrivers.zip

bildin

Support-03 replied at 2023-12-22 20:20
Hello there,

Please try to uninstall the graphic driver in the device manager and then reinstall i ...

I have tried this.
When I uninstall driver system uses "Basic videodriver (Microsoft)" and with this basic driver I can see video signal on old monitors over direct HDMI connection, but only with fixed 1920x1080 resolution and other limitations. At BIOS startup there is still no signal. As I install specified driver there is no signal in Windows also (tried both with Win10 and Win11).
It is not a big problem to use with adapter, but it is wonder because it worked from the box before driver update.

Support-03

bildin replied at 2023-12-23 18:24
I have tried this.
When I uninstall driver system uses "Basic videodriver (Microsoft)" and with th ...

Hello there,

Did you use our windows image ?

bildin

I used an image from this thread https://forum.bee-link.com/forum.php?mod=viewthread&tid=88309

Support-03

bildin replied at 2024-01-02 18:47
I used an image from this thread https://forum.bee-link.com/forum.php?mod=viewthread&tid=88309

Please repeatedly press delete key as soon as you turn on the PC, go to BIOS. Please send us a picture of the Main page. We will check if you need to update the BIOS.

bildin