Hey folks! Hope you can help me with that problem. I installed Ubuntu-Linux on my second harddrive and installed the driver for my videocard (ATI Radeon HD 5570) from AMD/ATI itself. Now i have the problem that I've got 2 monitors working. The first one is setup with 1440 x 900 and the other one is working on 1280 x 1024. Now everytime I try to enable the second monitor, it gives me the error: "The chosen configuration could not be set. Allowed position/size for CRTC >>148<< is above the allowed limit: Position=(1440,43), size=(1024,768), Maximum=(1792,1792)" But arranged the monitors to be next to each other, so the second one is right and attached to the first one! Here are the outputs of xrandr: Code: Screen 0: minimum 320 x 200, current 1792 x 900, maximum 1792 x 1792 DFP1 disconnected (normal left inverted right x axis y axis) DFP2 connected 1440x900+0+0 (normal left inverted right x axis y axis) 428mm x 255mm 1440x900 59.9 + 75.0* 1280x1024 75.0 60.0 1280x960 60.0 1280x800 75.0 60.0 1152x864 75.0 59.9 1280x768 75.0 60.0 1280x720 75.0 60.0 1024x768 75.0 70.1 60.0 800x600 72.2 75.0 60.3 56.2 640x480 75.0 72.8 67.0 59.9 CRT1 disconnected (normal left inverted right x axis y axis) CRT2 connected (normal left inverted right x axis y axis) 1024x768 85.0 + 75.0 70.1 60.0 1600x1200 65.0 1400x1050 65.0 1280x1024 75.0 1440x900 65.0 1280x960 75.0 1280x768 75.0 1280x720 75.0 800x600 70.1 85.1 72.2 75.0 60.3 640x480 70.1 85.0 75.0 72.8 67.0 59.9 And the output of glxinfo -l | grep MAX_TEXTURE_SIZE: Code: GL_MAX_TEXTURE_SIZE = 16384 Hope you guys got an idea...! Greetz! P.S.: Please excause my bad english! I'm german.