I salvaged good old T60 machine, with ATI X1400 and hi resolution screen (1600x1200). My problem is that Ubuntu does not detect higher resolutions than 1024x768. I can that radeon driver is sed (xserver-xorg-video-radeon). When I install fglrx drivers, the systems seems not to see 3d acceleration at all, legacy gnome starts and still can't change the resolution.

Additionally xrandr shows, look at maximum ... it is something wrong.

tdi@congruence:~$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 285mm x 214mm
1024x768 60.0*+
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
DVI-0 disconnected (normal left inverted right x axis y axis)

Has anybody encountered such a problem before? Probably ATI X1400 issue, not thinkpad.

  • Did you try to install the proprietary ATI driver with the additional drivers program? – Martin Ueding Aug 16 '11 at 22:19
  • @queueoverflow yes I did, but fglrx from repositories does not suport my card, and the one from ATI site is too old for the xorg ubuntu uses. – Darek Aug 17 '11 at 6:27
  • that figures for ATI … the X1400 is a kinda old card, so I would have expected for it to work OOTB. So the free driver is what you have installed now? I would now edit the xorg.conf and enter the native resolution there. Then it might be available. – Martin Ueding Aug 17 '11 at 12:05

(using the steps from here : http://osarena.net/2011/08/pos-na-prosthesete-tin-katallili-analisi-stin-othoni-sas-an-den-anagnorizete-aftomata.html )

  1. According to your output your connected screen is the LVDS connected (we will need that.)

  2. Next you must find your screens modelines which can be obtained through:

    • your manual,

    • the constructors (of your screen) site or

    • this site

  3. Open a terminal and run

    xrandr –newmode “ModeName” <modeline>

    where ModeName is just a name of your choice and <modeline> the one from the previous step.

    example :

    xrandr –newmode "1920x1080_60.00″ 148.35 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
  4. Then run this to add the new configuration:

    xrandr –addmode <your connection name> <your modeline's name>

    Your connection name is the one from the step 1.

    example :

    xrandr –addmode VGA-0 1920x1080_60.00


    • ModeName = 1920x1080_60.00
    • connection name = VGA-0
  5. Then run gksu gedit /etc/gdm/PreSession/Default and add the 2 previous lines to the end of the above file.


    xrandr –newmode «1920x1080_60.00″ 148.35 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
    xrandr –addmode VGA-0 1920x1080_60.00
  6. Through your monitor settings, choose your new resolution.

  • Thanks, I'll try that as soon as I get back from holidays, I try that. – Darek Aug 18 '11 at 11:16

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