[SOLVED] HDMI Issue with new monitor ?

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ovnir

Jan 26, 2025
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Hey everyone,

I’m having an issue with my new ASUS VA259HGA Monitor and could really use some advice. I’ve already submitted a case with ASUS, but I figured this community might have insights into monitor quirks like this.

The Issue:​

  • The monitor works flawlessly at 120Hz HDMI-to-HDMI with other PCs, and I’ve verified the HDMI cable is fine.
  • However, with my PC, the monitor does not recognize the HDMI signal at all—no beeps, just "HDMI No Signal" and VGA light stays longer than usual until windows starts.

Testing & Observations:​

  1. Before this monitor, I used a VGA-to-HDMI adapter with an older Fujitsu L-22T-4 monitor, which worked fine.
  2. Using VGA-to-HDMI, both the old monitor and the ASUS monitor work with my PC.
  3. If I boot into BIOS using VGA and then switch to HDMI, the ASUS monitor works temporarily but stops after a reboot.
  4. On Debian Linux:
    • If I start with VGA and switch to HDMI after boot, I see a frozen frame before it stops working(Wayland), and it works almost fully with(X11) but with a black background and no app bar on the bottom 60hz and that virus effect is visible behind moving windows(replicates windows) this only happens on(x11).
  5. The HDMI port on my GPU works fine with DVI to HDMI adapters for other monitors.
  6. when setting up a new OS like Debian the HDMI-HDMI works flawlessly until the next reboot required to enter the system.
  7. Just tested my PC and it works with HDMI to a TV so both my monitor and PC work with other devices on HDMI but not together, ?????????.

Specs:​

  • Motherboard: B450 Aorus Pro (BIOS version F66d - latest)
  • GPU: RTX 2060 Gaming OC Pro White 6GB
  • CPU: Ryzen 1600
  • RAM: 16GB

Additional Details:​

  • My VGA-to-HDMI adapter defaults to 60Hz at 1920x1080 and struggles over that, but I’ve managed to overclock it to 120Hz-125hz at 1024x768.
  • I’d love to fully utilize 120Hz+ on HDMI 1920x1080 for better performance.
I’m completely stumped because:

  • The monitor and HDMI cable work with other systems.
  • My PC works with other monitors HDMI to HDMI 4K, GPU is working no problems.
  • The HDMI port on my GPU also works with other monitors (via DVI to HDMI adapters).
  • The ASUS monitor only works with my PC under very specific conditions (e.g., booting via VGA first).
Any help or insights would be greatly appreciated. Thanks in advance!

Note: this thread will be constanly updated as long as possible I am determined to fix this no matter how long
update:
  • I managed to make it work in debian 12 with KDE plasma(x11) by unplugging the VGA adapter and plugging hdmi-hdmi cable at log-on screen it doesn't work fully it only shows me previously opened programs(firefox etc...) it plays youtube it's running at 60hz but the background is blacked out and there is no app bar at the bottom and things behave oddly, after a restart I can't replicate it, with a live boot USB I can only set up when it logs on I lose connection(HDMI no signal), I get weird seg faults and EDID errors on, I might try to remove EDID.
  • I am considering - buying an DP-HDMI adapter I know ridiculous it is what it is.
  • Just tested my PC with a 4K monitor, works flawlessly now this is more puzzling.
  • if I have to reprogram the kernel and bios from scratch I will do it.
TL;DR
pc works with every other monitor on hdmi
monitor works with every other pc and system on hdmi
they don't work together??

DP to HDMI cable works fully at 120hz
 
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What has dsub exactly? Because i don't see any part old enough to have this connection type (vga). Vga to hdmi terminology in order of things when describing 'to' means source to display.

No signal is usually (being obvious i know, sry) because cable isn't in properly. Well, since cable apparently works, check both ends are in properly. Sometimes bulky cable ends can prevent full insertion depending on where the video ports are located, with both case and monitor.
 
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check if the hdmi cable without any adapter can be plugged into the 2060 tightly and deeply enough. sometimes the plugs of hdmi are to big to fit in completely. try a different hdmi cable

the cideo ports of your motherboard won't work at all, only use the 2060

what exactly is a DCI-P to HDMI adapter?

don't use any adapters

check if the monitor source is set to auto or hdmi
 
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Just a bit of reading material, similar hdmi problem but with dual monitors.
Fixed the problem, but hard to say if it a communication problem between OS &GPU ?
Or a specific time in the boot process that detects the hdmi/connected monitor?
I offered a suggestion for connection/boot/power off etc. and it worked. Yours is slightly different but shows it can be fixed, sometimes.

Question - Dual Monitors Causing PC to Not Display Upon Boot Up

I got a new monitor for a dual display on my PC. My PC graphics card has 1 HMDI plug and 1 Display port plug. Old monitor was plugged in via HDMI previously. New monitor did not come with a display port, so I had to switch my new monitor to the HDMI connection and my old monitor to the display...
forums.tomshardware.com forums.tomshardware.com
 
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boju said:
What has dsub exactly? Because i don't see any part old enough to have this connection type (vga). Vga to hdmi terminology in order of things when describing 'to' means source to display.

No signal is usually (being obvious i know, sry) because cable isn't in properly. Well, since cable apparently works, check both ends are in properly. Sometimes bulky cable ends can prevent full insertion depending on where the video ports are located, with both case and monitor.
Click to expand...
yes all ends are in and it works with other pcs and monitors.
helpstar said:
check if the hdmi cable without any adapter can be plugged into the 2060 tightly and deeply enough. sometimes the plugs of hdmi are to big to fit in completely. try a different hdmi cable

the cideo ports of your motherboard won't work at all, only use the 2060

what exactly is a DCI-P to HDMI adapter?

don't use any adapters

check if the monitor source is set to auto or hdmi
Click to expand...
yes same issue with different cable, yes, dci-p is my mistake it's DVI, yes then it won't work, yes.
dwd999 said:
With Windows if you open up the Devices menu and Remove any monitors listed there, then reboot, does that help?
Click to expand...
doesn't work.
KingLoki said:
Just a bit of reading material, similar hdmi problem but with dual monitors.
Fixed the problem, but hard to say if it a communication problem between OS &GPU ?
Or a specific time in the boot process that detects the hdmi/connected monitor?
I offered a suggestion for connection/boot/power off etc. and it worked. Yours is slightly different but shows it can be fixed, sometimes.

Question - Dual Monitors Causing PC to Not Display Upon Boot Up

I got a new monitor for a dual display on my PC. My PC graphics card has 1 HMDI plug and 1 Display port plug. Old monitor was plugged in via HDMI previously. New monitor did not come with a display port, so I had to switch my new monitor to the HDMI connection and my old monitor to the display...
forums.tomshardware.com forums.tomshardware.com
Click to expand...
unfortunately wouldn't work monitor is not recognized in HDMI on windows, and my VGA light stays on when I plug it in, so it's not that.
boju said:
Yeah and what is that other DCI-P thing.
Click to expand...
I meant DVI corrected
 
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helpstar said:
reset the overclocked resolution and its refresh rate
reinstall gpu drivers with the option fresh install
set 1080p 60hz
unplug all adapters and vga, dvi things
be sure to plug in the hdmi into the 2060 and not the motherboard
reset bios of the motherboard
Click to expand...
done
done
done
doesn't work can't underclock below 60hz too even with CRU
it surprisingly works with 1920 32hz on ventoy(vga adapter first then disconnect in menu and connect hdmi) very odd.
unplugged done
yes done
reset bios reset cmos I even shorted it for good measure and 5 minutes I also changed gpu spot.
 
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reset the monitor to factory settings /reset all in osd

would RMA the monitor and try a different one
very strange thing, cause other pcs and other monitors are working with both

where does this light shine?
"VGA light stays on when I plug it in"

only resolution you shouldn't try is 1920x1080 75Hz, which is not supported by your monitor
 
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helpstar said:
reset the monitor to factory settings /reset all in osd

would RMA the monitor and try a different one
very strange thing, cause other pcs and other monitors are working with both

where does this light shine?
"VGA light stays on when I plug it in"

only resolution you shouldn't try is 1920x1080 75Hz, which is not supported by your monitor
Click to expand...
I'm not planning on returning it tbh it's too much of a headache and there isn't any dead pixels it works everything else, I might wait until my gpu upgrade is in.

By vga light I mean the light on the motherboard it stays way longer when connected with hdmi so it doesn't recognize it
 
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I don't understand anything. You have a RTX 2060 so why this struggling with DVI? Just use the HDMI or DP port (HDMI to HDMI or DP to DP). Cables cost 10$.

Also why are you saying "issue solved" and then "GPU and monitor are incompatible together"? That doesn't make any sense to me. Never seen a monitor that is "not compatible" with a GPU if they both have to same ports. And if the issue is solved then they are indeed compatible. DVI is a very old standard that is no longer used and I'm not surprised it causes problems with modern monitors.
 
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JayGau said:
I don't understand anything. You have a RTX 2060 so why this struggling with DVI? Just use the HDMI or DP port (HDMI to HDMI or DP to DP). Cables cost 10$.

Also why are you saying "issue solved" and then "GPU and monitor are incompatible together"? That doesn't make any sense to me. Never seen a monitor that is "not compatible" with a GPU if they both have to same ports. And if the issue is solved then they are indeed compatible. DVI is a very old standard that is no longer used and I'm not surprised it causes problems with modern monitors.
Click to expand...
reread the thread because your assumptions are incorrect, there is no DP slot on the monitor and hdmi to hdmi doesn't work specifically between these two parts ONLY gpu works with other monitors and monitor works with other gpus as I stated multiple times in the OG post, so it works with DP to HDMI cable, DVI to HDMI was just to let people know that the port is working correctly with digital signal, I hope you got it.
 
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ovnir said:
reread the thread because your assumptions are incorrect, there is no DP slot on the monitor and hdmi to hdmi doesn't work specifically between these two parts ONLY gpu works with other monitors and monitor works with other gpus as I stated multiple times in the OG post, so it works with HDMI to DP cable, DVI to HDMI was just to let people know that the port is working correctly with digital signal, I hope you got it.
Click to expand...
Also they are incompatible when using these two parts together specifically they do not send an EDID to the PC meaning the monitor either works completely bugged or doesn't
 
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boju said:
Monitor doesn't have DP so it's a DP to Hdmi connection not Hdmi to DP which would assume monitor had DP inputs. So you should understand people's confusion. Also self ba is a no.
Click to expand...
I assume people who are interested in the problem would look up the monitors ports themselves so yeah that makes some sense, self best answer is a no? why
 
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