HDMI port on graphics cards not working with monitor

[MikeSwoosh33]

I need some serious help. I have been extremely frustrated over the past few days. Allow me to explain...I bought a Sapphire Radeon R7 260x graphics card. I got a Gateway monitor, model LP2417. When I plugged the HDMI cable into the port on both devices I get a horrible screen with pixels and colors all over the place at the native resolution of the screen which is 1920x1200. At any other resolution the screen is either blurry or does not fill the whole screen. I have gone through all the setting I can find and changed what I could. After talking with Sapphire support we deduced that it was a bad HDMI port. So I shipped it off to get repaired. I got it back yesterday and when I plugged it in it worked for about an hour then went back to the original problem. So today, I went out and bought a XFX Radeon R9 270x. Plugged it in the same way and I get the same problem. What is going on here? I have tried different HDMI cables and I have tried hooking up the card to different displays. Same problem. I am beginning to think the monitor is shorting out the HDMI ports (or something of the sort). The DVI ports work fine on both cards however. While I'm here I might as well mention that CCC will not install on my system as the disk says the detection driver failed. Please help me. I am tired of going around and around in circles pulling my hair out trying to figure out the problem.

My full spec list is:
MSI 970A-G43 motherboard
EVGA 600B PSU
OCZ 128GB ARC 100 series SSD
Seagate 750GB HDD
XFX Radeon R9 270x GPU
AMD Phenom II x4 810 CPU
Windows 8.1 pro 64 bit

 

[PCBuilderProbs]

display drivers NEED to be updated, as they contain information about a large amount of monitors and displays. Once you update your garphics drivers it should auto detect the specific monitor and "conform" to its resolution

 

[MikeSwoosh33]

display drivers NEED to be updated, as they contain information about a large amount of monitors and displays. Once you update your garphics drivers it should auto detect the specific monitor and "conform" to its resolution

Since posting I have been able to install CCC however this problem still persists

 

[PCBuilderProbs]

update CCC to the latest version, restart PC, and then it should be able to fully detect your display and run its native resolution

 

[skitszo]

Kinda have to rule things out. Use the cable on a different system or monitor or TV and see if it works.

you've ruled out the graphics card.

you can get a second HDMI cable.. there are some cheap 5 to 10 dollar ones around.

get a known good monitor or tv and see what happens.

did you update drivers?

 

[MikeSwoosh33]

Kinda have to rule things out. Use the cable on a different system or monitor or TV and see if it works.

you've ruled out the graphics card.

you can get a second HDMI cable.. there are some cheap 5 to 10 dollar ones around.

get a known good monitor or tv and see what happens.

did you update drivers?

I have updated the driver for my graphics card fully to my knowledge. However, under device management, it does not recognize the monitor as a specific screen. It just calls it Generic PnP monitor. I tried to update driver software but it does not find anything.

 

[PCBuilderProbs]

update by going to AMD's website and getting the up-to-date drivers from there. Then restart your computer.

It's showing up as Generic PnP monitor because it has no driver details on the different monitors/displays. Updating the display drivers should fix this.

 

[MikeSwoosh33]

update by going to AMD's website and getting the up-to-date drivers from there. Then restart your computer.

It's showing up as Generic PnP monitor because it has no driver details on the different monitors/displays. Updating the display drivers should fix this.

From what I see all drivers are updated. CCC recgonizes the monitor as the proper model but Device manager still sees it as Generic PnP monitor. Right now, the HDMI port is not working at all and just gives me flashing white screens when plugged in.

 

[PCBuilderProbs]

I believe Device Manager is supposed to say "Generic PNP Monitor" (it says that for my laptop) but in your screen resolution settings it should say what monitor you have. Here's a couple things you can try:

1. Click "Detect" in your screen resolution settings (right click desktop, screen resolution). This should refresh whatever your system thought the monitor was previously.
2. Make sure you're outputting whatever your monitor can handle through Catalyst Control Center (ex if your monitor is 1080p 60hz make sure you're outputting that)
3. Swap for another HDMI cable you know works.

Also, just to ask but you have tested other monitors, maybe a tv, etc? It could just be your monitor messing up.

 

[MikeSwoosh33]

I believe Device Manager is supposed to say "Generic PNP Monitor" (it says that for my laptop) but in your screen resolution settings it should say what monitor you have. Here's a couple things you can try:

1. Click "Detect" in your screen resolution settings (right click desktop, screen resolution). This should refresh whatever your system thought the monitor was previously.
2. Make sure you're outputting whatever your monitor can handle through Catalyst Control Center (ex if your monitor is 1080p 60hz make sure you're outputting that)
3. Swap for another HDMI cable you know works.

Also, just to ask but you have tested other monitors, maybe a tv, etc? It could just be your monitor messing up.

All of the settings are correct in CCC and I have tried different cables. The only other monitor with an HDMI port is my tv and that is only 1920x1080 so at that resolution it gives me the problem of being slightly blurry and not filling the whole screen. On this monitor it does the same problem but at 1920x1200 I get horrible pixels and colors everywhere. At this point I am beginning to think that the monitor is shorting out (or something of the sort) the HDMI ports on the cards. I will mention that when plugging in the HDMI port into the monitor yesterday while hooked up to the other card I saw a small spark when plugging it in.