The NVIDIA driver builds its list of available modes from several sources. The most important of these are the display's EDID, and the X server's list of VESA standard modes.
The "ModeValidation" "NoXServerModes" option removes the X server provided modes from this pool. It seems that in this case, one or more of the VESA standard modes provided in the X server was incompatible with the particular display hardware being used. We do try to eliminate potentially incompatible modes from the server's list by checking them against the pixel clock and display dimensions in the EDID, but it's possible to have an incompatible mode pass these tests once in a while. It would be useful to know exactly which modes are failing, and to have a little bit more information about what is happening during the mode validation process. Setting Option "ModeDebug" "true" in the "Screen" section of xorg.conf will print detailed mode validation information in the log. -- When using NVIDIA driver wrong resolutions are picked causing *out of range* error from monitors OSD and cannot display analog signal from VGA output to TV because of refresh rates https://bugs.launchpad.net/bugs/481599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
