No 4K@60Hz with GeForce GTX 660 and Phillips BDM4065UC

Graphics / Linux Linux
1

Hi,

I have bought a Phillips BDM4065UC 3840x2160 display, which should support this resolution at 60 Hz via SST. The display is connected via DisplayPort to my GTX 660, but only this is offered:

Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 878mm x 485mm
   3840x2160     30.00 +  29.98    24.00  
   2560x1440     59.95* 
   2048x1080     59.99  
   1920x1080     60.00    59.94    50.00    60.00    50.04  
   1680x1050     59.95  
   1440x900      74.98    59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93

I’ve set DP version to 1.2 in monitor settings, yet only 30 Hz is being offered to me.

nvidia-settings says “Connection link: 4 lanes @ 2.70 Gbps”.

What can I do?

2

That indicates that the monitor is still running in single-stream mode. If it were running in multi-stream mode then it would have shown up as multiple outputs with names of the form DP-1.*. Most of the tiled displays I’ve tried require you to select an option to confirm the switch to MST mode in addition to actually selecting it.

3

LubosD, Is this issue resolved for you?