Hi, I have an Intel 945 video card in my laptop. I would like to use an external monitor (positioned right of the main screen), but the total width exceeds 2048, the virtual screen size, pixels so I can't. My xorg.conf has Section "Screen" Identifier "Screen" Device "Card0" Monitor "Monitor0" SubSection "Display" Viewport 0 0 Depth 24 Virtual 2560 1024 EndSubSection EndSection so the virtual screen should be big enough, but apparently X ignores this. I found this in the log: (EE) intel(0): Cannot support DRI with frame buffer width > 2048 Questions: 1. Is X ignoring the Virtual setting because of the DRI, or some other reason? 2. If it is the DRI, can I disable it somehow? I tried various things (including disabling glx, dri and dri2 in the modules section, Option "DRI" "false" for the device), but $ glxinfo | head name of display: :0.0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: SGI server glx version string: 1.2 server glx extensions: GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe, GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_MESA_copy_sub_buffer and $ grep dri /var/log/Xorg.0.log X.Org XInput driver : 4.0 (WW) "dri" will not be loaded unless you've specified it to be loaded elsewhere. (WW) "dri2" will not be loaded unless you've specified it to be loaded elsewhere. (II) "dri" will be loaded even though the default is to disable it. (II) "dri2" will be loaded even though the default is to disable it. so I don't think I was successful. Any help would be appreciated. I am happy to run the laptop without DRI, but I need that second screen on the right, not below. It used to work fine, but a recent upgrade (I don't know which) changed things. I am using Debian, $ dpkg -l xserver-xorg-video-intel | grep ii ii xserver-xorg-video-intel 2:2.8.0-1 $ uname -r 2.6.31-rc4-686 Thank you, Tamas