A520M-HDV dual monitors

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   I've got a new computer with the A520M-HDV motherboard.  Using the integrated graphics, I have the main display configured and working correctly.  When I attach a second display while the computer is running (dual boot - this happens in Windows 11 and in Ubuntu 22), the second display is detected and I'm able to extend the desktop.  But when I reboot, both screens are blank.  No boot menu, no OS, nothing.  I have to disconnect the second display and cold boot the machine in order to get the display working.  

Is there a way to have this boot with both displays attached?  Would I have better luck adding a separate graphics card?

Thanks.

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derubou Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Dec 2022 Status: Offline Points: 20	Post Options Post Reply Quote derubou Report Post Thanks(0) Quote Reply Topic: A520M-HDV dual monitors Posted: 12 Dec 2022 at 11:30pm
	I've got a new computer with the A520M-HDV motherboard. Using the integrated graphics, I have the main display configured and working correctly. When I attach a second display while the computer is running (dual boot - this happens in Windows 11 and in Ubuntu 22), the second display is detected and I'm able to extend the desktop. But when I reboot, both screens are blank. No boot menu, no OS, nothing. I have to disconnect the second display and cold boot the machine in order to get the display working. Is there a way to have this boot with both displays attached? Would I have better luck adding a separate graphics card? Thanks.

SerchTech Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 16 Oct 2022 Location: Spain Status: Offline Points: 1335	Post Options Post Reply Quote SerchTech Report Post Thanks(0) Quote Reply Posted: 15 Dec 2022 at 5:23am
	Hi I haven't experience with APUs or iGPUs but if you share the following specifications you will be more likely to receive help from other users: - APU (CPU with integrated graphics) and BIOS version - Monitors make, models and resolutions - Cables and adapters used to connect them I would also open a support ticket with ASRock providing the aforementioned information https://event.asrock.com/tsd.asp And yes, a dedicated GPU offers advantages but it is possible that the problems come from the monitors, cables or adapters used so IMO better know the answers before spending more money. Good luck
	X399 Taichi (4.03) Threadripper 2950X DDR4 2 x HX432C16FB3K2/32

bjlockie Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 17 Nov 2015 Status: Offline Points: 1394	Post Options Post Reply Quote bjlockie Report Post Thanks(0) Quote Reply Posted: 15 Dec 2022 at 8:03am
	HDMI?
	ASRock B450M Pro4 16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS