all 6-bit lcd's having banding ?

[dr.kevin]

edit-

when I use dvi output to lcd monitor, no banding.

when i use hdmi output from laptop, i get banding. color is set at highest 32bit.
decreasing contrast doesnt eliminate bands.

i thought hdmi and dvi output was supposed to be identical.
in this case, they are not. hdmi looks shittier than dvi

wtf ?

 

[Tup3x]

I have Acer H223HQEbmid and that gradient is totally smooth. On top of that it shows all black boxes in black test. Light grey too is really good.

 

[dr.kevin]

i think my laptop's hdmi output is fucked up.
i tried turning contrast all the way down, but via hdmi, banding still exists.

When i connect the monitor to my desktop's dvi output, the gradient is pretty smooth.

 

[lawless2142]

Your HDMI out may be using YUV levels (16-240) instead of the normal RGB (0-255). Not sure why. Try running in a "non-HD" resolution. Some monitors interpret any signal over HDMI at 1080P or 720P as a HDTV input (like BlueRay, or STB, etc), so try a different resolution as well.

As a general technical note; TN panels achieve visually smooth gradients through Hi-FRC advanced dithering; you should only see distinct banding on poor monitors or in extreme contrast.

 

[dr.kevin]

there's def something wonky with the nvidia driver, or the way it handles dual monitors.

my laptop has 1366x768 native rez. When i extend the desktop to the 23" monitor, the 23" shows banding at 1920x1080.

If i duplicate my laptop screen onto the monitor, or set the extended desktop to 1366x768 so that i have two 1366x screens, there is no banding.
At any other resolution larger or smaller, there is banding.

i don't get it. text is sharp on the extended desktop when running in 1080p mode. but gradients are not smooth.