>From the xorg.conf manual (man xorg.conf): Depth depth This entry specifies what colour depth the Display subsection is to be used for. This entry is usually specified, but it may be omitted to create a match-all Display subsection or when wishing to match only against the FbBpp parameter. The range of depth values that are allowed depends on the driver. Most drivers support 8, 15, 16 and 24. Some also support 1 and/or 4, and some may support other values (like 30). Note: depth means the number of bits in a pixel that are actually used to determine the pixel colour. 32 is not a valid depth value. Most hardware that uses 32 bits per pixel only uses 24 of them to hold the colour information, which means that the colour depth is 24, not 32. FbBpp bpp This entry specifies the framebuffer format this Display subsection is to be used for. This entry is only needed when providing depth 24 configurations that allow a choice between a 24 bpp packed framebuffer format and a 32bpp sparse framebuffer format. In most cases this entry should not be used. DefaultFbBpp bpp specifies which framebuffer layout to use by default. The -fbbpp command line option can be used to override this. In most cases the driver will chose the best default value for this. The only case where there is even a choice in this value is for depth 24, where some hardware supports both a packed 24 bit framebuffer layout and a sparse 32 bit framebuffer layout. Option "Pixmap" "bpp" This sets the pixmap format to use for depth 24. Allowed values for bpp are 24 and 32. Default: 32 unless driver constraints don't allow this (which is rare). Note: some clients don't behave well when this value is set to 24. <div>2007/6/5, Robert Tilley <<a href="mailto:tilleyrw@cfl.rr.com">tilleyrw@cfl.rr.com</a>>:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Thanks for the advice and now a further question. I added a Display subsection under the Screen section. The depth is 32 and the mode is 1280x1024. The default depth for the screen was 16. This is where the problem begins. I changed the default of 16 to 32 and restarted X. X would not restart. After rebooting into recovery mode (console) and changing the default depth to 24, X would start with no difficulty. Both the 16, 24, and 32 depths have a mode entry of 1280x1024. I want to see 32-bit depth, but apparently X or my video card can't handle it. I am running on a Dell Dimension 2350 with an Intel 82845G (i810) video card. Can anyone help me? Thanks, Bob -- Release the DVDs: 45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2 -- kubuntu-users mailing list <a href="mailto:kubuntu-users@lists.ubuntu.com">kubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/kubuntu-users">https://lists.ubuntu.com/mailman/listinfo/kubuntu-users</a> </blockquote></div>