AOC U2868PQU 28 - Issues HELP Please

Xandrah

Xandrah

Xandrah

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Joined
11 Nov 2011
Posts
18
Okay so I got a AOC U2868PQU 28 for Christmas.

Absolutely wonderful monitor, but suddenly after 1 hr of use I am getting some strange results.

1 hour in: My monitor starts to randomly flicker.. text flickers and such but then.. BAM its fine for hours until the computer comes out of standby, you usually have to stop the flicking by turning it off then back on.



8 hours in: The monitor came out of standby again.. screen popped and the flickering stopped, but then all of a sudden half the screen went BLACK. And the only way to fix this was to pull the power cable and then put it back in.

9 hours in: The monitor really hated coming out of standby this time, the whole monitor would not detect signal from the DP 1.2 port on my GTX 780 Ti setup. I had to physically restart my pc to fix this.

In the morning before switch on: Switching the monitor on for a brand new day seems alright, then a few seconds in the screen flickers and the inbuilt speakers POP. After this "huff" the whole screen seems to be fine.

Can this be caused by the screen drivers supplied with AOC?
Or is something really wrong with this monitor and should I RMA it?
 
Turn the sound down to 0 in the monitor's OSD as theres some bugs with the internal power saving that causes the popping and some of the rippling flicker (unfortunately this is about the only issue you can work around) but won't solve the other flicker/momentary corruption and problems with one half of the screen losing sync with the other or turning black.

These issues unfortunately is "normal" for this monitor and why I usually recommend people avoid them.
 
Rroff said:
Turn the sound down to 0 in the monitor's OSD as theres some bugs with the internal power saving that causes the popping and some of the rippling flicker (unfortunately this is about the only issue you can work around) but won't solve the other flicker/momentary corruption and problems with one half of the screen losing sync with the other or turning black.

These issues unfortunately is "normal" for this monitor and why I usually recommend people avoid them.
Click to expand...

So I am guessing a replacement of exactly the same AOC U2868PQU 28 from OC Returns Squad wont solve the problem I am getting?
 
Not unless there is a different firmware that fixes it - which I and others haven't managed to get a straight answer from AOC on (and likely isn't end user upgradeable any way).

If at all possible I'd swap it for the Samsung version.
 
Rroff said:
Not unless there is a different firmware that fixes it - which I and others haven't managed to get a straight answer from AOC on (and likely isn't end user upgradeable any way).

If at all possible I'd swap it for the Samsung version.
Click to expand...

I will have to phone again on Monday and change the rma order to be for the Samsung.

Does the Samsung 28" 4K have the same issues as the AOC? Because I heard they use the same internal panel.
 
Some people have had the power saving bug with the Samsung but again can be worked around by muting the internal speakers - I've not seen reports of the other issues with that panel.
 
Rroff said:
Some people have had the power saving bug with the Samsung but again can be worked around by muting the internal speakers - I've not seen reports of the other issues with that panel.
Click to expand...

Thanks for your help :) I was hoping it was the dodgy display drivers that AOC want you to install, because at the moment, the screen seems to be behaving after I removed those drivers.
 
Why arnt the reviews for this monitor 1 star! And why isnt this monitor pulled from being sold with these retarded problems!

Day 2: Monitor wont even be detected and flickers madly when PC turns screen off after 20 minutes. To get it to work again, I had to pull the power plug an turn the pc off and on! What the hell is this being sold for OCUK. You honestly better not RMA Replace me with the same crap!


Edit: Setting the monitor to 61HZ instead of 60HZ via the NVIDIA Custom Resolution pack seems to have stopped all flickering and dsync issues at the moment. Even coming out of standby the monitor is finding signal.
I am not sure if this is a complete fix, as it may just throw a bender after a while again.
 
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What GPU are you using? The monitor uses non standard CR timings.

Try reinstalling the monitor driver by modifying/creating the inf with this EDID override:

This was a fix provided by AMDs display division however it may work for Kepler GPU also

[Version]
signature="$WINDOWS NT$"
Class=Monitor
ClassGuid={4D36E96E-E325-11CE-BFC1-08002BE10318}
Provider="AMD"
DriverVer=7/8/2014, 1.0.0.0

;CatalogFile=Sample.cat

[DestinationDirs]
DefaultDestDir=23

[SourceDisksNames]
1=%SourceDisksNames%

[SourceDisksFiles]
;profile1.icm=1

[Manufacturer]
%VendorID%=AMD_EDID_OVERRIDE,NTx86,NTamd64

[AMD_EDID_OVERRIDE.NTx86]
%ProductName%=AMD_EDID_OVERRIDE-1.Install, MONITOR\AOC2868

[AMD_EDID_OVERRIDE.NTamd64]
%ProductName%=AMD_EDID_OVERRIDE-1.Install.NTamd64, MONITOR\AOC2868

[AMD_EDID_OVERRIDE-1.Install.NTx86]
DelReg=DEL_CURRENT_REG
AddReg=AMD_EDID_OVERRIDE-1.AddReg, MODE1, DPMS
CopyFiles=AMD_EDID_OVERRIDE-1.CopyFiles

[AMD_EDID_OVERRIDE-1.Install.NTamd64]
DelReg=DEL_CURRENT_REG
AddReg=AMD_EDID_OVERRIDE-1.AddReg, MODE1, DPMS
CopyFiles=AMD_EDID_OVERRIDE-1.CopyFiles

[AMD_EDID_OVERRIDE-1.Install.NTx86.HW]
AddReg=AMD_EDID_OVERRIDE-1_AddReg

[AMD_EDID_OVERRIDE-1.Install.NTamd64.HW]
AddReg=AMD_EDID_OVERRIDE-1_AddReg

[AMD_EDID_OVERRIDE-1_AddReg]
;EDID1.4 BaseBlock
HKR,EDID_OVERRIDE,"0",0x01,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x05,0xE3,0x68,0x28,0xF5,0x02,0x00,0x00,0x10,0x18,0x01,0x04,0xA5,0x3E,0x22,0x78,0x3A,0xEE,0xD1,0xA5,0x55,0x48,0x9B,0x26,0x12,0x50,0x54,0xBF,0xEF,0x00,0xD1,0xC0,0xB3,0x00,0x95,0x00,0x81,0x80,0x81,0x40,0x81,0xC0,0x01,0x01,0x01,0x01,0x50,0xD0,0x00,0xA0,0xF0,0x70,0x3E,0x80,0x08,0x90,0x35,0x0C,0x6D,0x55,0x21,0x00,0x00,0x1A,0x04,0x74,0x00,0x30,0xF2,0x70,0x5A,0x80,0xB0,0x58,0x8A,0x00,0x6D,0x55,0x21,0x00,0x00,0x1A,0x00,0x00,0x00,0xFD,0x00,0x17,0x50,0x1E,0xA0,0x3C,0x01,0x0A,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x00,0x00,0xFC,0x00,0x55,0x32,0x38,0x36,0x38,0x0A,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x01,0x49

[DEL_CURRENT_REG]
HKR,MODES
HKR,EDID_OVERRIDE
HKR,,MaxResolution
HKR,,DPMS
HKR,,ICMProfile

[DPMS]
HKR,,DPMS,,1

[MODE1]
HKR,,MaxResolution,,"3840,2160"

[AMD_EDID_OVERRIDE-1.AddReg]
HKR,"MODES\3840,2160",Mode1,,"30.0-160.0,23.0-80.0,+,+"

[AMD_EDID_OVERRIDE-1.CopyFiles]
;profile1.icm

[Strings]
SourceDisksNames="Monitor EDID Override Installation Disk"
ProductName="U2868 (Override)"
VendorID="AOC"
Click to expand...
 
Last edited:
Silent_Scone said:
What GPU are you using? The monitor uses non standard CR timings.

Try reinstalling the monitor driver by modifying/creating the inf with this EDID override:

This was a fix provided by AMDs display division however it may work for Kepler GPU also
Click to expand...

GPU: NVIDIA GTX 780 TI

Tried the fixes, using the EDID Override timing, even using the driver directly supplied by AMD.
The flickering does stop after 5 or some minutes, until you turn the monitor off for 10 minutes then back on, flickering comes back, monitor randomly has mood swings, from turning off by itself, to half the screen loosing sync.
Even when the computer is not on, the AOC logo somtimes even flickers if its in its "flicker" mood.

I will have the monitor RMA'd tomorrow, they better not send me the same **** back again.
 
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