NAME

xdpyinfo - display information utility for X

SYNOPSIS

xdpyinfo [-display _d_i_s_p_l_a_y_n_a_m_e] [-queryExtensions] [-ext _e_x_t_e_n_s_i_o_n_-_n_a_m_e]

DESCRIPTION

Xdpyinfo is a utility for displaying information about an X server. It is used to examine the capabilities of a server, the predefined values for various parameters used in communicating between clients and the server, and the different types of screens and visuals that are available.

By default, numeric information (opcode, base event, base error) about protocol extensions is not displayed. This information can be obtained with the --qquueerryyEExxtteennssiioonnss option. Use of this option on servers that dynamically load extensions will likely cause all possible extensions to be loaded, which can be slow and can consume significant server resources.

Detailed information about a particular extension is displayed with the --eexxtt _e_x_t_e_n_s_i_o_n_N_a_m_e option. If _e_x_t_e_n_s_i_o_n_N_a_m_e is aallll, information about all extensions supported by both _x_d_p_y_i_n_f_o and the server is displayed.

ENVIRONMENT

DISPLAY
To get the default host, display number, and screen.

SEE ALSO

X(7) xprop(1) xrdb(1) xwininfo(1) xdriinfo(1) xvinfo(1) glxinfo(1)

AUTHOR

Jim Fulton, MIT X Consortium
Support for the XFree86-VidModeExtension, XFree86-DGA, XFree86-Misc, and XKB extensions added by Joe Moss