Acer Predator XB273U GSBMIIPRZX display issue on horizontal lines at higher refresh rates

Hello. I have Acer Predator XB3-27" Display WQHD 2560x1440 IPS 165Hz 16:9 1ms 400Nit, bought 2 years and 4 months ago. Payed 600 euros. First problem was vertical lines on screen after 2 months of using, got a new one in replacement after reporting a problem. Now a have problem with horizontal lines when i turn on 120hz,144hz or 165hz.On 60hz there is no lines, on 100hz sometimes it has sometimes works normal. Because the warranty is overdue, I need help with repair, can you help me find a new panel or some other solution? Thanks in advance.

[Edited the thread to add model name and issue detail to the title]

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Axxo

Try windows x
go to device manager
expand display adapter
right click on display driver - uninstall
Restart the computer

It should work fine.

If it is still not working
Uninstall the display adapter from device manager
Dont restart the computer.
Go to support.acer.com
chose your country
type snid or chose your model
go to drivers
Install the display driver

After installing the display driver check the refresh rate and Check the display colors.

Magoo93

Thanks,i will try,but i dont think its a software problem,its power problem or panel

billsey

Most often the issue is either the cable no longer meeting spec or the cable picking up noise from a power source. Try a new cable and rerouting to stay away from power cords, and maybe try to monitor plugged into a different power outlet than the desktop.

Magoo93

https://community.acer.com/en/discussion/comment/1283472#Comment_1283472

I tried everything,new cables,new power supply for monitor,new drivers,DP cable,HDMI cable,different ports…definitely the panel is the problem,but i cant find it nowhere to replace…now doesnt work on 60hz or 100hz anymore.Thanks for answering

Magoo93

Thanks,tried everything,definitely the problem is the panel….

billsey

OK, give us your actual model number, it is likely on the same sticker as your SN and should looks something like XB273xx xxxxxxxx. We can look up the display part numbers as well as the number for the main board.

Magoo93

https://community.acer.com/en/discussion/comment/1283627#Comment_1283627

Acer Predator X3B XB273U

billsey

The XB273U without extra numbers and letters is from 2018, is that what yours is?

Or is yours one of the later models. There should have been a bunch more digits… I think there is also an M3 model this year that's not in that list…

Magoo93

https://community.acer.com/en/discussion/comment/1283867#Comment_1283867

27" Predator XB3 Gaming Monitor - XB273U GSBMIIPRZX is the model,here it is

https://store.acer.com/en-us/27-predator-xb3-gaming-monitor-xb273u-gsbmiiprzx

billsey

So, the UGS model then. The rest of the letters (bmiiprzx) define things like which ports are installed, whether it has speakers or not and which language the OSD menu uses. Unfortunately, even though that model is a couple of years old, Acer hasn't given us access to the service guide for it yet. I'm escalating to the moderators to try and get it…