Acer is receiving fantastic reviews on the XB270HU monitor, but also seeing that some customers have experienced an excessive bleed issue.
Unfortunately, the physics behind IPS technology means that a glow sometimes does appear.
If you feel that this applies to your model then we first suggest the below actions;
1) Adjust settings as per below;
Gamma 2.2
Brightness: 24
Contrast: 50
R: 50
G: 45
B: 46
You can find further detail in the TFT Central review.
http://www.tftcentral.co.uk/reviews/content/acer_xb270hu.htm#gaming_summary
2) Enable the unit to establish itself in the new conditions / environment. During the logistics process and storage element the products can be exposed to lower than normal temperatures or maybe moved around excessively during transit. As such, we recommend customers operate fully the unit asper normal for at least 72hrs so the panel stabilizes. Customers could also use a micro-fibre cloth to touch / softly rub the panel where the glow is present and almost ‘warm-up’ the backlight.
The two options are for customers to trial and are not guarantees of a successful solution. As such, If customers feel that the model still requires attention then we advise them to contact directly their retailer / reseller customer service, whereby your details will be passed onto the Acer Escalation service team. An Acer representative will then make contact to support you.
Acer would like to ensure all customers that we have the highest degree of quality control and after service in place currently. To lastly comment, we take all customer issues extremely seriously and are working hard to ensure that every customer has a satisfactory product as the end result.