Windows 10: Monitor works with DVI connection, but not with HDMI and latest drivers

Hi,I have a very weird problem with my monitor that just started happening out of nowhere.It's a BenQ RL2455 monitor with a 1920x1080 native resolution, connected to a RTX 3070 Ti HDMI to HDMI.The resolution is stuck at 1024x768 and the only other available option is 800x600.I've been using the monitor for over 5 years, and the new gaming setup for around 5 months.Everything was working fine without any issues and the monitor problem just started happening with nothing changed regarding hardware or software. It's just that one day I turned on my PC and the resolution was stuck.To make things

:)

 

HDMI to DVI Monitor Will Not Play Audio

Thanks for the suggestions, Deepika. I have a Samsung SyncMaster HDTV monitor and a SHARP monitor. I'm trying to get audio on the Samsung HDTV. I'm not sure if you need an audio cable when connecting to the HDTV. Anyways, I kept it on the television. Either
way, it doesn't work. I ran the troubleshooter, and there isn't any problems. I tested all the cables yesterday, and everything works as usual. How are the HDMI cables supposed to connect and work with video and audio? Is there a driver problem? I believe
it might be because my monitor is in the DVI port, instead of an HDMI. This is why it's not detecting on the sounds/playback devices. Plugging an audio cable in the secondary monitor with VGA works, but using an HDMI for the television does not. Using VGA
for the television does work with audio. Not sure what the problem is, or if I have to plug the audio cable in the HDTV at all. Any help would be appreciated! Thanks!

UPDATE: Figured out the problem, testing. The HDMI cable although supports audio and video, the DVI connector
does not. Because of this, the computer detects it as a DVI connection. It instead uses the regular audio cable. The television, however, does not. It detects HDMI first, and uses that as as the audio. Since there is no coming through the DVI
connector and instead coming through the audio cable, it won't play anything. This can be half solved by changing the source device (source>edit name) on the Samsung television to HDMI DVI. This, however, does not fix it, as sound still doesn't come out. The
computer still has to be changed to be able to play audio properly. Any suggestions on how to fix this?

 

dvi/hdmi adapter to dvi on monitor

can i connect a monitor that has dvi on it like this-

dvi to hdmi adapter on graphics card to monitor using dvi to hdmi cable?

I will connect the dvi to hdmi cable into the monitor and connect the hdmi on the end of it to the hdmi on the adapter connected to the monitor.Will it work.

thanks tigger.

 

[nVidia] - Second Display Not Working? - DVI Monitor & Second HDMI TV

hmm.. sounds like that particular TV is not supported...
I would suggest only connecting PC monitors to your PC be it connected via DVI, HDMI, or DisplayPort...