New GPU will not display on Monitor because of Refresh Rate

[MiNuN]

The Issue(https://i.imgur.com/LWbHyOw.jpg)

Monitor is Dell SP2309W, GPU is AMD RX 6700 XT, Cable is HDMI to HDMI

I installed the GPU yesterday, since then it will not display on my monitor because of the refresh rate, it will black screen, glitch screen or struggle to display

I used DDU by Guru3D(https://www.guru3d.com/files-details/dis...nload.html) and I believe when it uninstalled my monitor(https://i.imgur.com/H0s4plQ.jpg) the issue began and my monitor is replaced with a basic driver that can not communicate what refresh rate it can support

I am trying to find drivers for my monitor Dell SP2309W but nothing worked so far, prior to this situation it would say DELL SP2309W in Devices and Printers(https://i.imgur.com/UhDWPVg.png) and under Monitor in Device Manager(https://i.imgur.com/1R9sJ7W.png), it no longer does and has been replaced by what Windows has found

My old TV can display without an issue(https://i.imgur.com/hgg0rua.jpg)

If the GPU drivers are uninstalled or I boot in Safe Mode(https://i.imgur.com/EBvXkIn.png), it will display on the monitor, while in Safe Mode it thinks my monitor is still the old TV(https://i.imgur.com/o3rHPuR.jpg)

I tried lowering the resolution, did not help

A little digging shows the generic driver is at 64 Hertz(https://i.imgur.com/5vISDiA.jpg) with no other options available, which exceeds my monitor limitation of 2048x1152@60Hz

https://i.imgur.com/oDybO1h.png

Please help!

EDIT: I was able to install the drivers for my monitor Dell SP2309W, it is now being recognized for what it is

According to the DirectX Diagnostic Tool, Microsoft Basic Display Driver(https://i.imgur.com/3YKk3lM.png) is forcing the 64Hz on my monitor, which it can not handle, I don't know how I can change this

EDIT 2: When the HDMI is connected to the TV, it is connected to the AMD RX 6700 XT, when the HDMI is connected to the monitor, it is connect to the Microsoft Basic Display Driver, confirmed this in Safe Mode where my monitor works at 1Hz

[ToastyX]

Monitors don't need drivers. The Microsoft Basic Display driver always lists 64 Hz. That's not the actual refresh rate. Uninstalling a monitor is safe, and the monitor will be automatically detected again on the next boot. Something strange is going on because the monitor should be plug and play, and I've never heard of it switching to the Microsoft Basic Display driver when plugging in a monitor. I'm leaning towards a hardware issue. Either the monitor is sending a bad EDID and an AMD driver bug is causing it to fail to load with the bad EDID, or the video card is defective.

The monitor's on-screen menu should have an info section that reports what resolution and refresh rate it's receiving. What resolution does the monitor report when it's using the Microsoft Basic Display Driver?

First some basic checks:

1. Did you install the latest AMD driver after using DDU? https://www.amd.com/en/support/kb/releas...win-22-1-2
2. Try unplugging the monitor's power for a few minutes. Sometimes this can reset firmware glitches.
3. Try another HDMI cable if you have one. A bad cable can cause problems with transmitting the EDID.
4. Try using an HDMI-DVI cable/adapter. If the monitor's EDID is corrupted on the HDMI port, it might be fine on the DVI port.

If #4 doesn't work, it might be a defective video card. Can you test the monitor with onboard video or another video card?

[MiNuN]

(01-23-2022 11:19 PM)ToastyX Wrote:  Monitors don't need drivers. The Microsoft Basic Display driver always lists 64 Hz. That's not the actual refresh rate. Uninstalling a monitor is safe, and the monitor will be automatically detected again on the next boot. Something strange is going on because the monitor should be plug and play, and I've never heard of it switching to the Microsoft Basic Display driver when plugging in a monitor. I'm leaning towards a hardware issue. Either the monitor is sending a bad EDID and an AMD driver bug is causing it to fail to load with the bad EDID, or the video card is defective.

The monitor's on-screen menu should have an info section that reports what resolution and refresh rate it's receiving. What resolution does the monitor report when it's using the Microsoft Basic Display Driver?

First some basic checks:

1. Did you install the latest AMD driver after using DDU? https://www.amd.com/en/support/kb/releas...win-22-1-2
2. Try unplugging the monitor's power for a few minutes. Sometimes this can reset firmware glitches.
3. Try another HDMI cable if you have one. A bad cable can cause problems with transmitting the EDID.
4. Try using an HDMI-DVI cable/adapter. If the monitor's EDID is corrupted on the HDMI port, it might be fine on the DVI port.

If #4 doesn't work, it might be a defective video card. Can you test the monitor with onboard video or another video card?

The monitor is pretty old it does struggle to display sometimes, like having to warm up first, but it was always usable

The GPU is new and does work with my old TV HDMI to HDMI

Bad EDID makes sense

The monitor’s on-screen menu does not seem to have that information section

I made some progression(With some struggles https://imgur.com/Oky7X6v ), I was able to normal boot and change it to a resolution & refresh rate where it is stable with glitching lines(https://imgur.com/eIHa1ot)

I removed all inactive Monitors(https://i.imgur.com/CH3qKtp.png) within Device Manager, leaving only the monitor which is active

I did a scan with Command Prompt(https://i.imgur.com/WM8Lef0.png) and it shown no issues there

The monitor is connected to AMD Radeon RX 6700 XT(https://imgur.com/dyOVQ3u) at 1920 x 1080 25Hz, if I set it above 25Hz it will glitch out again(https://imgur.com/vYNf6DD)

The issue now is I can not set at 60Hz though the monitor can support it and the glitching lines(I can probably live with this), with my old GPU I was able to use the monitor’s highest resolution at 60Hz and 75Hz at some lower resolutions

For 1. I have uninstalled and reinstalled several times using both the AMD official uninstaller and DDU, after my most recent attempt (with DDU) I let Windows install the drivers, then with struggles against a glitching screen (It glitches out after the drivers are installed and not prior) I was able to stabilize the display by lowering the refresh rate to 25hz or under, I did not download anything from AMD, afraid that the display would glitch out again if I do

For 2. I tried this

For 3. I tried this with 3 HDMI to HDMI cables (2 old and 1 modern), same results

For 4. I will order different variations of DVI & HDMI cables and test it, I do not think I have ever used a HDMI to HDMI cable on this monitor till now (maybe this is the problem), I have used both inputs on the monitor before (DVI & HDMI) but they usually have different outputs, for example my old GPU used a Mini DisplayPort to HDMI which works fine

My board does not have an on-board video, but my old GPU works (It has overheating issues which is why it needs to be replaced)

Thank you ToastyX for responding, I felt like I learned from your post

[ToastyX]

I noticed the color depth is set to 10-bit. Try setting the color depth to 8-bit in the Radeon control panel.

I looked up the manual for the SP2309W, and the monitor shows the resolution it's receiving in the bottom-left of the menu. That should confirm the refresh rate is not 64 Hz.

If the driver provided by Windows Update can read the EDID, then I don't think it's an EDID issue. What does CRU show with this driver loaded?

The distortion you're seeing looks like a signal quality problem and not an EDID issue if the resolution is correct. Since you tried other HDMI cables, I think the HDMI port might be bad on the monitor or video card. What resolution is the old TV?

[MiNuN]

(01-24-2022 01:56 PM)ToastyX Wrote:  I noticed the color depth is set to 10-bit. Try setting the color depth to 8-bit in the Radeon control panel.

I looked up the manual for the SP2309W, and the monitor shows the resolution it's receiving in the bottom-left of the menu. That should confirm the refresh rate is not 64 Hz.

If the driver provided by Windows Update can read the EDID, then I don't think it's an EDID issue. What does CRU show with this driver loaded?

The distortion you're seeing looks like a signal quality problem and not an EDID issue if the resolution is correct. Since you tried other HDMI cables, I think the HDMI port might be bad on the monitor or video card. What resolution is the old TV?

Since I stabilized it, I have not download the AMD software, do you think it would be okay to do so?

Someone else suggested that I have it plugged into the TV before I download the AMD software, install it, restart, set resolution and then switch to the Monitor

This is the Monitor's on-screen menu, it shows the Resolution and Optimal Resolution but not the current refresh rate

https://photos.app.goo.gl/wybWwEdCx9X2E2oq7

I am in normal boot-up now, connected to the AMD Radeon RX 6700 XT at 1920 x 1080 25Hz

The issue now is if I set it above 25Hz (regardless of the resolution), it will glitch out

The TV is 1080p

With the Monitor I have always use a resolution of 2048 x 1152 but I can not now because it is only available at 60Hz

CRU Screenshot
https://imgur.com/a/p6PSv2x

[MiNuN]

I installed the AMD software and it updated the drivers, still not able to go above 25Hz I saw no difference

I changed the color depth from 10-bit to 8-bit, this helped go above 25Hz, testing at 60Hz, it stopped glitching out and the glitching lines are gone (At 25Hz the glitching lines return), instead it will flicker, black out then return

Video of it
https://imgur.com/DWUmfKm

On top of that it will static screen then return (instead of black out)
https://imgur.com/N8IN7T9

Luckily twice the Display is completely stabled and is working normally at 2048x1152 60Hz, like right now as of the past 42 minutes

2 minutes video of the Display stabilized at 2048x1152 60Hz
https://photos.app.goo.gl/wybWwEdCx9X2E2oq7

I do think if I restart my computer it will show symptoms from the first video, it feels like a band-aid solution

[ToastyX]

The static is the video card having trouble decoding HDCP because of the signal quality. CRU is showing it can read the EDID fine, so I think it's a hardware fault with either the monitor or the video card.

[MiNuN]

(01-25-2022 05:26 PM)ToastyX Wrote:  The static is the video card having trouble decoding HDCP because of the signal quality. CRU is showing it can read the EDID fine, so I think it's a hardware fault with either the monitor or the video card.

Right

If I use a HDMI to HDMI cable with a new GPU at 10-bit and it happens again, I can assume it is the Monitor's HDMI port

I am not sure what color depth it was at but with my previous GPU I was using a Mini DisplayPort to HDMI cable which works fine, does this change the signal in any way where it might of been possible to use a color depth of 10-bit?

I have not power down or restart my computer but the display is still stable

[ToastyX]

10 bpc wouldn't be available with DisplayPort to HDMI because the pixel clock would be limited to 165 MHz unless it's an active adapter that supports higher pixel clocks.

Another thing you can try is deleting the extension block with CRU. That will cause the video card to send a DVI signal instead, which might be more stable if the monitor is having trouble with something in the HDMI signal.

[MiNuN]

(01-27-2022 02:57 AM)ToastyX Wrote:  10 bpc wouldn't be available with DisplayPort to HDMI because the pixel clock would be limited to 165 MHz unless it's an active adapter that supports higher pixel clocks.

Another thing you can try is deleting the extension block with CRU. That will cause the video card to send a DVI signal instead, which might be more stable if the monitor is having trouble with something in the HDMI signal.

I think I am okay with 8-bit ha ha, just curious

Thank you for solving this problem, I learned a lot!