Hey guys,
I have a 2018' MacBook Pro 15' (Radeon Pro 560X version) and a LG 4K display 32UK550-b.
And when I play SOME videos, the places where should be pure black look like deep greenish color.
It doesn't look that bad in person but I enhanced the brightness and contrast ratio of the camera to demonstrate what I meant.
The weird thing is, this only happens with SOME youtube videos, and some local videos with specific player app (like the black top-bottom bars of the movie look greenish).
The display shows black correctly elsewhere. Like the pure black UI of Chrome, or pure black pictures.
Like the image below (the left is black bar of the video, not the video content).
I played the same video from iPad to show the video itself has no issues.
And the internal display has no issues whatsoever with integrated graphic or Radeon pro.
Here are some extra information:
I tried three different monitors: LG 32ul750, Philips 328P, LG 32uk550 (I replaced the monitor twice to get the dead-pixel free panel), all of them have the same issue. So this is not on monitors side.
Tried HDMI 2.0 (two usb-c to HDMI cables) and Displayport 1.2 (a usb-c to displayport cable). The same.
Of course tried rebooting/resetting SMC/reinstalling the OS. No fix.
Tried tweaking color profiles/display settings, none of them can get rid of this.
Any thoughts please??
I have a 2018' MacBook Pro 15' (Radeon Pro 560X version) and a LG 4K display 32UK550-b.
And when I play SOME videos, the places where should be pure black look like deep greenish color.
It doesn't look that bad in person but I enhanced the brightness and contrast ratio of the camera to demonstrate what I meant.
The weird thing is, this only happens with SOME youtube videos, and some local videos with specific player app (like the black top-bottom bars of the movie look greenish).
The display shows black correctly elsewhere. Like the pure black UI of Chrome, or pure black pictures.
Like the image below (the left is black bar of the video, not the video content).
I played the same video from iPad to show the video itself has no issues.
And the internal display has no issues whatsoever with integrated graphic or Radeon pro.
Here are some extra information:
I tried three different monitors: LG 32ul750, Philips 328P, LG 32uk550 (I replaced the monitor twice to get the dead-pixel free panel), all of them have the same issue. So this is not on monitors side.
Tried HDMI 2.0 (two usb-c to HDMI cables) and Displayport 1.2 (a usb-c to displayport cable). The same.
Of course tried rebooting/resetting SMC/reinstalling the OS. No fix.
Tried tweaking color profiles/display settings, none of them can get rid of this.
Any thoughts please??
