id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 5842,X can't start - unable to find initial modes -> duplicate of #5731,Robin Green,,"I installed Fedora Linux 12 in VirtualBox, and this seemed to work as long as I didn't use Full Screen mode. When I switched to Full Screen mode with Host+F and then shut down the virtual machine, changed the network configuration and powered up the virtual machine again, X wouldn't start in the guest. I repeatedly tried to start X as root, and every time I got these kind of messages: (II) VBoxVideo(0): Output VBOX1 has no monitor section (II) VBoxVideo(0): Output VBOX1 has no monitor section (II) VBoxVideo(0): Not using built-in mode ""1440x900"" (unknown reason) (II) VBoxVideo(0): No remaining probed modes for output VBOX1 (II) VBoxVideo(0): Output VBOX1 connected (WW) VBoxVideo(0): Unable to find initial modes (EE) VBoxVideo(0): Output VBOX1 enabled but has no modes (EE) VBoxVideo(0): Initial CRTC configuration failed! (II) UnloadModule: ""vboxvideo"" (II) UnloadModule: ""vgahw"" (II) Unloading /usr/lib64/xorg/modules/libvgahw.so (II) UnloadModule: ""shadowfb"" (II) Unloading /usr/lib64/xorg/modules/libshadowfb.so (II) UnloadModule: ""fb"" (II) Unloading /usr/lib64/xorg/modules/libfb.so (II) UnloadModule: ""int10"" (II) Unloading /usr/lib64/xorg/modules/libint10.so (II) UnloadModule: ""vbe"" (II) Unloading /usr/lib64/xorg/modules/libvbe.so (EE) Screen(s) found, but none have a usable configuration. Fatal server error: no screens found ",defect,closed,guest additions,VirtualBox 3.1.2,duplicate,,,Linux,Windows