Dual Monitor - Sticky Edges

I have RHEL 6.2 on an old Dell T3500 with a GEoforce 710 card with the 430.50 driver:

Monitors:
Dell 30" 2560x1600
4K HD TV 3840x2160

Problem:
Using the standard linux monitor configuration I am only able to select 1280x1024 for both of them MIRRORED.

Using the Nvidia X configuration I am able to select and apply the correct settings for the 2 monitors however the resultant displays are either cropped or have black edges. In the Ubuntu world they have a control called “sticky edges” whereby no matter what the configuration it will fill the monitor to the edges. Is there such a setting or command that will perform the same function in a RHEL installation?

Using a GT710 for those monitors might not be the best choice.
How are the monitors connected, i.e. which ports are you using, any converters/adapters used? The Dell would need a dual-link dvi connector and the corresponding cable. The TV is probably connected over hdmi, which means at 4k, you can achieve a refresh rate of 30Hz max.
Please post the output of
xrandr --verbose

I am able to set the proper resolutions in Xconfig but the HDMI TV monitor has black stipes on the left and right edges. There is a thing in the ubuntu world call sticky-edges which solves the issue. Does Nvidia have such a thing? We are not gaming so we don’t care about refresh rate to much.

I’m using the DVI port with no adapter for the Dell and HDMI for the other.

============================================
I3C:vnmr1 17>xrandr --verbose
Screen 0: minimum 8 x 8, current 2560 x 1600, maximum 16384 x 16384
VGA-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x27e
Timestamp: 442036960
Subpixel: unknown
Clones:
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 0 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: VGA
supported: VGA
ConnectorType: VGA
ConnectorNumber: 2
_ConnectorLocation: 2
DVI-D-0 connected 2560x1600+0+0 (0x280) normal (normal left inverted right x axis y axis) 641mm x 401mm
Identifier: 0x27f
Timestamp: 442036960
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
CscMatrix: 65536 0 0 0 0 0 0 0 0 0 65536 0
EDID:
00ffffffffffff0010ac63404c353237
3214010380402878ea8d85ad4f35b125
0e5054a54b00714f81008180a940d100
d14001010101e26800a0a0402e603020
360081912100001a000000ff00504835
4e593043483732354c0a000000fc0044
454c4c2055333031310a2020000000fd
0031561d711c000a2020202020200077
BorderDimensions: 4
supported: 4
Border: 0 0 0 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: DVI-D
ConnectorNumber: 0
_ConnectorLocation: 0
2560x1600 (0x280) 268.500MHz +HSync -VSync *current +preferred
h: width 2560 start 2608 end 2640 total 2720 skew 0 clock 98.71KHz
v: height 1600 start 1603 end 1609 total 1646 clock 59.97Hz
1920x1440 (0x281) 234.000MHz -HSync +VSync
h: width 1920 start 2048 end 2256 total 2600 skew 0 clock 90.00KHz
v: height 1440 start 1441 end 1444 total 1500 clock 60.00Hz
1920x1200 (0x282) 193.250MHz -HSync +VSync
h: width 1920 start 2056 end 2256 total 2592 skew 0 clock 74.56KHz
v: height 1200 start 1203 end 1209 total 1245 clock 59.88Hz
1600x1200 (0x283) 162.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
1280x1024 (0x284) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x285) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1280x800 (0x286) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1152x864 (0x287) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1024x768 (0x288) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x289) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x28a) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x28b) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x28c) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x28d) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
HDMI-0 connected 2560x1600+0+0 (0x28f) normal (normal left inverted right x axis y axis) 1872mm x 1053mm
Identifier: 0x28e
Timestamp: 442036960
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 1
CRTCs: 0 1 2 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004c2d130f000e0001
011c0103808e50780a23ada4544d9926
0f474abdef80714f81c0810081809500
a9c0b300010104740030f2705a80b058
8a00501d7400001e023a801871382d40
582c4500501d7400001e000000fd0018
4b0f511e000a202020202020000000fc
0053414d53554e470a202020202001f1
02034cf0535f101f041305142021225d
5e626364071603122909070715075057
070183010000e2004fe30503016e030c
001000b83c20008001020304e3060d01
e50e60616566e5018b849001011d80d0
721c1620102c2580501d7400009e6621
56aa51001e30468f3300501d7400001e
000000000000000000000000000000a3
CscMatrix: 65536 0 0 0 0 0 0 0 0 0 65536 0
BorderDimensions: 4
supported: 4
Border: 192 0 192 0
range: (0, 65535)
SignalFormat: TMDS
supported: TMDS
ConnectorType: HDMI
ConnectorNumber: 1
_ConnectorLocation: 1
3840x2160 (0x28f) 297.000MHz +HSync +VSync *current +preferred
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 67.50KHz
v: height 2160 start 2168 end 2178 total 2250 clock 30.00Hz
4096x2160 (0x290) 593.410MHz +HSync +VSync
h: width 4096 start 4184 end 4272 total 4400 skew 0 clock 134.87KHz
v: height 2160 start 2168 end 2178 total 2250 clock 59.94Hz
4096x2160 (0x291) 594.000MHz +HSync +VSync
h: width 4096 start 5064 end 5152 total 5280 skew 0 clock 112.50KHz
v: height 2160 start 2168 end 2178 total 2250 clock 50.00Hz
4096x2160 (0x292) 296.700MHz +HSync +VSync
h: width 4096 start 4184 end 4272 total 4400 skew 0 clock 67.43KHz
v: height 2160 start 2168 end 2178 total 2250 clock 29.97Hz
4096x2160 (0x293) 297.000MHz +HSync +VSync
h: width 4096 start 5064 end 5152 total 5280 skew 0 clock 56.25KHz
v: height 2160 start 2168 end 2178 total 2250 clock 25.00Hz
4096x2160 (0x294) 297.000MHz +HSync +VSync
h: width 4096 start 5116 end 5204 total 5500 skew 0 clock 54.00KHz
v: height 2160 start 2168 end 2178 total 2250 clock 24.00Hz
4096x2160 (0x295) 296.750MHz +HSync +VSync
h: width 4096 start 5116 end 5204 total 5500 skew 0 clock 53.95KHz
v: height 2160 start 2168 end 2178 total 2250 clock 23.98Hz
3840x2160 (0x296) 593.410MHz +HSync +VSync
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 134.87KHz
v: height 2160 start 2168 end 2178 total 2250 clock 59.94Hz
3840x2160 (0x297) 594.000MHz +HSync +VSync
h: width 3840 start 4896 end 4984 total 5280 skew 0 clock 112.50KHz
v: height 2160 start 2168 end 2178 total 2250 clock 50.00Hz
3840x2160 (0x298) 296.700MHz +HSync +VSync
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 67.43KHz
v: height 2160 start 2168 end 2178 total 2250 clock 29.97Hz
3840x2160 (0x299) 297.000MHz +HSync +VSync
h: width 3840 start 4896 end 4984 total 5280 skew 0 clock 56.25KHz
v: height 2160 start 2168 end 2178 total 2250 clock 25.00Hz
3840x2160 (0x29a) 296.750MHz +HSync +VSync
h: width 3840 start 5116 end 5204 total 5500 skew 0 clock 53.95KHz
v: height 2160 start 2168 end 2178 total 2250 clock 23.98Hz
1920x1080 (0x29b) 148.500MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x29c) 148.350MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080 (0x29d) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x29e) 74.180MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1089 total 1125 clock 29.97Hz
1920x1080 (0x29f) 74.250MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1089 total 1125 clock 25.00Hz
1920x1080 (0x2a0) 74.180MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 26.97KHz
v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
1920x1080 (0x2a1) 74.180MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1094 total 1124 clock 60.00Hz
1920x1080 (0x2a2) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1094 total 1124 clock 50.04Hz
1680x1050 (0x2a3) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1600x900 (0x2a4) 108.000MHz +HSync +VSync
h: width 1600 start 1624 end 1704 total 1800 skew 0 clock 60.00KHz
v: height 900 start 901 end 904 total 1000 clock 60.00Hz
1440x900 (0x2a5) 106.500MHz -HSync +VSync
h: width 1440 start 1520 end 1672 total 1904 skew 0 clock 55.93KHz
v: height 900 start 903 end 909 total 934 clock 59.89Hz
1366x768 (0x2a6) 85.500MHz +HSync +VSync
h: width 1366 start 1436 end 1579 total 1792 skew 0 clock 47.71KHz
v: height 768 start 771 end 774 total 798 clock 59.79Hz
1280x1024 (0x284) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x285) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1280x800 (0x286) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1280x720 (0x2a7) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0x2a8) 74.180MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1280x720 (0x2a9) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1152x864 (0x287) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1024x768 (0x288) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x2aa) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x289) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x28a) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x2ab) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x28b) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
720x576 (0x2ac) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x480 (0x2ad) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
640x480 (0x28c) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x2ae) 31.500MHz -HSync -VSync
h: width 640 start 656 end 696 total 832 skew 0 clock 37.86KHz
v: height 480 start 481 end 484 total 520 clock 72.81Hz
640x480 (0x28d) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
I3C:vnmr1 18>

Any ideas anyone?

The tv has resolutions
3840x2160 (0x28f) 297.000MHz +HSync +VSync *current +preferred
4096x2160 (0x290) 593.410MHz +HSync +VSync

I suspect setting 4096x2160 instead of 3840x2160 fills the bars.