PG278Q Dead? Please Help

[Mayor Doctor]

I was using as normal when a white blotch creeped over the screen until it was covered, then growing a couple grey patches, all nicely speckled with RGB pixels (within 10 seconds).  I saw the whites became taking a redish hue before I killed the power to it.  I run 2 monitors and the other monitor works fine still.  I did buy refurbished and have run on a pretty high brightness.  980ti, i5-4670k.  Any information would be greatly appreciated!

 

http://postimg.org/image/rfjhq0tad/

The orange spots are my ceiling lights, the rest is as seen on screen

[Curufinwe_wins]

Looks buttfucked to me.

[Falkentyne]

I was using as normal when a white blotch creeped over the screen until it was covered, then growing a couple grey patches, all nicely speckled with RGB pixels (within 10 seconds).  I saw the whites became taking a redish hue before I killed the power to it.  I run 2 monitors and the other monitor works fine still.  I did buy refurbished and have run on a pretty high brightness.  980ti, i5-4670k.  Any information would be greatly appreciated!

 

http://postimg.org/image/rfjhq0tad/

The orange spots are my ceiling lights, the rest is as seen on screen

Unplug the monitor from the wall outlet, power off the computer, wait 30 seconds then power it back up

 Please report back.

[Mayor Doctor]

Unplug the monitor from the wall outlet, power off the computer, wait 30 seconds then power it back up

 Please report back.

The monitor will turn on to an all white screen then slowly (about 15 seconds)  morph into basically what is seen above

[iamdarkyoshi]

LCD has cracked by the sounds of it

[Falkentyne]

LCD did not crack.

 

I know this problem.

The gsync scaler has failed.  Must be RMA'd.

I have had this happen to an Asus VG248QE.  Two of them in fact.  The exact same thing happens.  The screen gets scrambled and blurry and distorted and then it looks like "Liquid" is moving from the center of the screen to the edges, with a huge shiny streaky line effect that seems to be strongest in the middle, like LCD liquid material that cant form a proper image and instead looks like its melting or water is in the panel and expanding.  Am I correct ?
 

This happened in my case, because of trying to boot into MS DOS/Boot disk mode through USB key (windows 98 boot disk) on ATI X850XT video card, through DVI port.

The video mode was improper and timings were incorrect over DVI.  One time when the screen did not change to "Vapor" but the MS DOS text was stretched and *gigantic*, the OSD said the resolution was 6144x720 or something.  Yeah.

 

If I used the VGA port, it worked correct every time each time (either said it was 1280x1024 or 640x480 I forgot).

 

It did it to both of the VG248's.

 

If I hooked up my Benq XL2720Z and tried it, the Benq would not even show a signal.  Would just go into power save mode with "no signal detected." (VGA port, as before, worked perfectly again)

 

I know this was a bug with X850XT video card because I tried the exact same thing on an old Pentium 3 and GeForce 4 ti 4600's DVI port.  No problem at all, and the DVI port made the screens run at 1920x1080 (downscaled to 640x480).

 

Neither VG248QE was damaged by this and work perfectly now.  But the screen looked identical to your dead PG278Q. Exactly.  Literally exact same pattern.

 

So the LCD itself is probably fine.  The gsync module is dead and not giving a valid siginal so the panel cant handle whatever voltages, signals or whatever its given.

 

Very freaky to see it happen though.
 

[Mayor Doctor]

Thanks for the info.  Sadly I bought refurbished and it only came with a 3 month warranty (wouldn't ya know, it's been just over 4 months).  Hopefully ASUS takes pity on this poor consumer.  I'm going to call after work today and will come back with info/mark as solved.

[iamdarkyoshi]

LCD did not crack.

 

I know this problem.

The gsync scaler has failed.  Must be RMA'd.

I have had this happen to an Asus VG248QE.  Two of them in fact.  The exact same thing happens.  The screen gets scrambled and blurry and distorted and then it looks like "Liquid" is moving from the center of the screen to the edges, with a huge shiny streaky line effect that seems to be strongest in the middle, like LCD liquid material that cant form a proper image and instead looks like its melting or water is in the panel and expanding.  Am I correct ?

 

This happened in my case, because of trying to boot into MS DOS/Boot disk mode through USB key (windows 98 boot disk) on ATI X850XT video card, through DVI port.

The video mode was improper and timings were incorrect over DVI.  One time when the screen did not change to "Vapor" but the MS DOS text was stretched and *gigantic*, the OSD said the resolution was 6144x720 or something.  Yeah.

 

If I used the VGA port, it worked correct every time each time (either said it was 1280x1024 or 640x480 I forgot).

 

It did it to both of the VG248's.

 

If I hooked up my Benq XL2720Z and tried it, the Benq would not even show a signal.  Would just go into power save mode with "no signal detected." (VGA port, as before, worked perfectly again)

 

I know this was a bug with X850XT video card because I tried the exact same thing on an old Pentium 3 and GeForce 4 ti 4600's DVI port.  No problem at all, and the DVI port made the screens run at 1920x1080 (downscaled to 640x480).

 

Neither VG248QE was damaged by this and work perfectly now.  But the screen looked identical to your dead PG278Q. Exactly.  Literally exact same pattern.

 

So the LCD itself is probably fine.  The gsync module is dead and not giving a valid siginal so the panel cant handle whatever voltages, signals or whatever its given.

 

Very freaky to see it happen though.

Thats really odd that it would exhibit the same behaviour as a broken LCD. Silly module. It should be able to handle whatever signal is sent to it.

[Falkentyne]

Thats really odd that it would exhibit the same behaviour as a broken LCD. Silly module. It should be able to handle whatever signal is sent to it.

 

Not if the voltages sent to make the signal are completely out of specification.

LCD's act different than televisions.

usually if a signal is incorrect you will get 'out of range."

However if a signal is able to bypass the firmware protection by sending something completely invalid then it depends on what it's able to pick up.  The Benq simply said "No signal detected."

 

Old analog televisions could actually have stuff fry by sending signals that are far outside of the analog tolerances. 

That's whats happening with the LCD, except the crystals start reforming.

[Michalis95]

I have the exact same problem as OP. My pg278q is out of warranty so i get nothing from asus and i didn't find a way to fix it. Is there any hope or is it dead?