Thinkpad T61 with (965GM) X3100 connected to docking station hooked up to Samsung 243T via DVI (VGA displays the same behavior): I am unable to change the resolution of the Samsung 243T. Xrandr will not do anything to it. It is stuck at 1280x1024 @ 75hz..!!!!! Tested this under Windows Vista and it works fine, without issue. Samsung 243T displays at 1920x1200. So it is not a hardware issue! THIS IS VERY BAD!!! 1) xrandr version 2) xrandr --properties 3) xrandr --verbose 1) ubuntu@ubuntu:~$ xrandr --version Server reports RandR version 1.2 2) ubuntu@ubuntu:~$ xrandr --properties Screen 0: minimum 320 x 200, current 1440 x 1024, maximum 1920 x 1920 VGA disconnected (normal left inverted right x axis y axis) LVDS connected 1440x900+0+0 (normal left inverted right x axis y axis) 303mm x 190mm EDID_DATA: 00ffffffffffff0030ae334000000000 00110103801e1378eaae109658538c28 24505421080001010101010101010101 0101010101013226a04051841a303020 36002fbe10000019d51fa04051841a30 302036002fbe100000190000000f0090 0a32900a28140100320cf800000000fe 004c503134315750312d544c42370021 BACKLIGHT_CONTROL: kernel supported: native legacy combination kernel BACKLIGHT: 100 (0x00000064) range: (0,100) 1440x900 60.0*+ 50.0 1280x800 60.0 1280x768 60.0 1024x768 60.0 800x600 60.3 640x480 60.0 59.9 TMDS-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 518mm x 324mm EDID_DATA: 00ffffffffffff004c2df7003432424e 110f0103803420a02aee95a3544c9926 0f5054bfef80a9408180714f01010101 010101010101283c80a070b023403020 360006442100001a000000fd00374b1e 5011000a202020202020000000fc0053 796e634d61737465720a2020000000ff 0048344b593430303634390a202000fb 1920x1200 60.0 + 1600x1200 59.9 1280x1024 75.0* 59.9 1152x864 75.0 74.8 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 75.0 72.8 66.7 60.0 720x400 70.1 3) ubuntu@ubuntu:~$ xrandr --verbose Screen 0: minimum 320 x 200, current 1440 x 1024, maximum 1920 x 1920 VGA disconnected (normal left inverted right x axis y axis) Identifier: 0x5b Timestamp: 92683 Subpixel: unknown Clones: CRTCs: 0 1 LVDS connected 1440x900+0+0 (0x5e) normal (normal left inverted right x axis y axis) 303mm x 190mm Identifier: 0x5c Timestamp: 92683 Subpixel: horizontal rgb Clones: CRTC: 1 CRTCs: 1 EDID_DATA: 00ffffffffffff0030ae334000000000 00110103801e1378eaae109658538c28 24505421080001010101010101010101 0101010101013226a04051841a303020 36002fbe10000019d51fa04051841a30 302036002fbe100000190000000f0090 0a32900a28140100320cf800000000fe 004c503134315750312d544c42370021 BACKLIGHT_CONTROL: kernel supported: native legacy combination kernel BACKLIGHT: 100 (0x00000064) range: (0,100) 1440x900 (0x5e) 97.8MHz -HSync -VSync h: width 1440 start 1488 end 1520 total 1760 skew 0 clock 55.6KHz v: height 900 start 903 end 909 total 926 clock 60.0Hz 1440x900 (0x5f) 81.5MHz -HSync -VSync h: width 1440 start 1488 end 1520 total 1760 skew 0 clock 46.3KHz v: height 900 start 903 end 909 total 926 clock 50.0Hz 1280x800 (0x60) 83.5MHz h: width 1280 start 1344 end 1480 total 1680 skew 0 clock 49.7KHz v: height 800 start 801 end 804 total 828 clock 60.0Hz 1280x768 (0x61) 80.1MHz h: width 1280 start 1344 end 1480 total 1680 skew 0 clock 47.7KHz v: height 768 start 769 end 772 total 795 clock 60.0Hz 1024x768 (0x62) 65.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz v: height 768 start 771 end 777 total 806 clock 60.0Hz 800x600 (0x63) 40.0MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz v: height 600 start 601 end 605 total 628 clock 60.3Hz 640x480 (0x64) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 60.0Hz 640x480 (0x65) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 59.9Hz TMDS-1 connected 1280x1024+0+0 (0x68) normal (normal left inverted right x axis y axis) 518mm x 324mm Identifier: 0x5d Timestamp: 92683 Subpixel: horizontal rgb Clones: CRTC: 0 CRTCs: 0 1 EDID_DATA: 00ffffffffffff004c2df7003432424e 110f0103803420a02aee95a3544c9926 0f5054bfef80a9408180714f01010101 010101010101283c80a070b023403020 360006442100001a000000fd00374b1e 5011000a202020202020000000fc0053 796e634d61737465720a2020000000ff 0048344b593430303634390a202000fb 1920x1200 (0x66) 154.0MHz +HSync -VSync h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 74.0KHz v: height 1200 start 1203 end 1209 total 1235 clock 60.0Hz 1600x1200 (0x67) 161.0MHz -HSync +VSync h: width 1600 start 1712 end 1880 total 2160 skew 0 clock 74.5KHz v: height 1200 start 1203 end 1207 total 1245 clock 59.9Hz 1280x1024 (0x68) 135.0MHz +HSync +VSync h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 80.0KHz v: height 1024 start 1025 end 1028 total 1066 clock 75.0Hz 1280x1024 (0x69) 109.0MHz -HSync +VSync h: width 1280 start 1368 end 1496 total 1712 skew 0 clock 63.7KHz v: height 1024 start 1027 end 1034 total 1063 clock 59.9Hz 1152x864 (0x6a) 108.0MHz +HSync +VSync h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.5KHz v: height 864 start 865 end 868 total 900 clock 75.0Hz 1152x864 (0x6b) 104.0MHz -HSync +VSync h: width 1152 start 1224 end 1344 total 1536 skew 0 clock 67.7KHz v: height 864 start 867 end 871 total 905 clock 74.8Hz 1024x768 (0x6c) 78.8MHz +HSync +VSync h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.1KHz v: height 768 start 769 end 772 total 800 clock 75.1Hz 1024x768 (0x6d) 75.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.5KHz v: height 768 start 771 end 777 total 806 clock 70.1Hz 1024x768 (0x62) 65.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz v: height 768 start 771 end 777 total 806 clock 60.0Hz 832x624 (0x6e) 57.3MHz -HSync -VSync h: width 832 start 864 end 928 total 1152 skew 0 clock 49.7KHz v: height 624 start 625 end 628 total 667 clock 74.6Hz 800x600 (0x6f) 50.0MHz +HSync +VSync h: width 800 start 856 end 976 total 1040 skew 0 clock 48.1KHz v: height 600 start 637 end 643 total 666 clock 72.2Hz 800x600 (0x70) 49.5MHz +HSync +VSync h: width 800 start 816 end 896 total 1056 skew 0 clock 46.9KHz v: height 600 start 601 end 604 total 625 clock 75.0Hz 800x600 (0x63) 40.0MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz v: height 600 start 601 end 605 total 628 clock 60.3Hz 800x600 (0x71) 36.0MHz +HSync +VSync h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz v: height 600 start 601 end 603 total 625 clock 56.2Hz 640x480 (0x72) 31.5MHz -HSync -VSync h: width 640 start 656 end 720 total 840 skew 0 clock 37.5KHz v: height 480 start 481 end 484 total 500 clock 75.0Hz 640x480 (0x73) 31.5MHz -HSync -VSync h: width 640 start 664 end 704 total 832 skew 0 clock 37.9KHz v: height 480 start 489 end 491 total 520 clock 72.8Hz 640x480 (0x74) 30.2MHz -HSync -VSync h: width 640 start 704 end 768 total 864 skew 0 clock 35.0KHz v: height 480 start 483 end 486 total 525 clock 66.7Hz 640x480 (0x64) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 60.0Hz 720x400 (0x75) 28.3MHz -HSync +VSync h: width 720 start 738 end 846 total 900 skew 0 clock 31.5KHz v: height 400 start 412 end 414 total 449 clock 70.1Hz