I've configured XFree86 with the Matrox G550 video card, mga driver, and use of overlays. The problem seems to be that the root window is forced to depth 8 when the Option "Overlay" is enabled. I've tried setting Option Overlay in the XF86Config-4 file with the combinations: Option "Overlay" Option "Overlay" "8,24" Option "Overlay" "24,8" I even set on the command line to start X with depth 24 and set XF86Config-4 to default to depth 24. Alas, to no avail! All attempts have the same effect. Is there a way to have use Overlay's and have a root window color depth > 8 (ie, 16 or 24)? If so, can anyone share their settings/configuration with me? Here is some diag information: To show that Option overlay is indeed set, I have the following output: prompt> xprop -root | grep SERVER_OVERLAY SERVER_OVERLAY_VISUALS(SERVER_OVERLAY_VISUALS) = 0x25, 0x1, 0xff, 0x1, 0x26, 0x1, 0xff, 0x1 And to show X is started with depth 24, I have: prompt> ps auxwww | grep X11 tj 1447 0.0 0.0 2160 604 ? S 00:05 0:00 xinit /etc/X11/xinit/xinitrc -- -depth 24 -deferglyphs 16 root 1448 3.3 1.5 64656 14052 ? R 00:05 0:08 /etc/X11/X :0 -depth 24 -deferglyphs 16 I have color flashing and check the depth of the root window via xdpyinfo: prompt> xdpyinfo name of display: :0.0 version number: 11.0 vendor string: Mandrake Linux (XFree86 4.2.1, patch level 3mdk) vendor release number: 40201000 XFree86 version: 4.2.1 maximum request size: 4194300 bytes motion buffer size: 256 bitmap unit, bit order, padding: 32, LSBFirst, 32 image byte order: LSBFirst number of supported pixmap formats: 7 supported pixmap formats: depth 1, bits_per_pixel 1, scanline_pad 32 depth 4, bits_per_pixel 8, scanline_pad 32 depth 8, bits_per_pixel 8, scanline_pad 32 depth 15, bits_per_pixel 16, scanline_pad 32 depth 16, bits_per_pixel 16, scanline_pad 32 depth 24, bits_per_pixel 32, scanline_pad 32 depth 32, bits_per_pixel 32, scanline_pad 32 keycode range: minimum 8, maximum 255 focus: window 0x240000c, revert to PointerRoot number of extensions: 25 BIG-REQUESTS DOUBLE-BUFFER DPMS Extended-Visual-Information FontCache GLX LBX MIT-SCREEN-SAVER MIT-SHM MIT-SUNDRY-NONSTANDARD SECURITY SGI-GLX SHAPE SYNC TOG-CUP XC-APPGROUP XC-MISC XFree86-Bigfont XFree86-DGA XFree86-Misc XFree86-VidModeExtension XInputExtension XKEYBOARD XTEST XVideo default screen number: 0 number of screens: 2 screen #0: dimensions: 1600x1200 pixels (542x406 millimeters) resolution: 75x75 dots per inch depths (2): 8, 24 root window id: 0x5f depth of root window: 8 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x21 default number of colormap cells: 256 preallocated pixels: black 0, white 1 options: backing-store NO, save-unders NO largest cursor: 64x64 current input event mask: 0xd84031 KeyPressMask EnterWindowMask LeaveWindowMask KeymapStateMask SubstructureNotifyMask SubstructureRedirectMask PropertyChangeMask ColormapChangeMask number of visuals: 4 default visual id: 0x25 visual: visual id: 0x25 class: PseudoColor depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x0, 0x0, 0x0 significant bits in color specification: 8 bits visual: visual id: 0x26 class: GrayScale depth: 8 planes available colormap entries: 256 red, green, blue masks: 0x0, 0x0, 0x0 significant bits in color specification: 8 bits visual: visual id: 0x27 class: TrueColor depth: 24 planes available colormap entries: 256 per subfield red, green, blue masks: 0xff0000, 0xff00, 0xff significant bits in color specification: 8 bits visual: visual id: 0x28 class: TrueColor depth: 24 planes available colormap entries: 256 per subfield red, green, blue masks: 0xff0000, 0xff00, 0xff significant bits in color specification: 8 bits And lastly, removing "Option Overlays ..." from the XF86Config-4 file starts X with a root color depth of 24 (as expected!). However, X does not support overlays in this mode! Any thoughts are greatly appreciated, Tim Johnson timj@xxxxxxxxx _______________________________________________ Xpert mailing list Xpert@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xpert