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IRIX Base Documentation 1998 November
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IRIX 6.5.2 Base Documentation November 1998.img
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relnotes
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x_dev
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ch5.z
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ch5
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1998-11-02
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5. _K_n_o_w_n__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
+o Silicon Graphics has no plans to implement a multi-
threaded version of the X server.
+o _x_s_t_d_c_m_a_p does not work properly, nor do the colormap
utilities in _l_i_b_X_m_u. The X server creates the standard
colormap properties by default at startup. They work
properly if not accessed through _l_i_b_X_m_u.
+o In the search pane of the Insight application, any
search in the Xt library will come up saying
XLib_WinSys, rather than referring to Xt. Similarly,
searches for the Xlib library come up saying XLib_PG.
+o On older graphics platforms, X and OpenGL do not
coordinate swapping a double-buffered window properly
if swapping buffers through the X server. Thus, when
rendering X and OpenGL to the same window, it is safest
if buffer swapping is handled using the glXSwapBuffers
call.
+o When running OpenGL applications that use indirect
rendering, it is normal for more than one instance of
Xsgi, the SGI X server, to show up under 'ps'. They
represent multiple threads of the X server, used to
implement indirect rendering.
+o The X server does not support the large request
mechanism. Protocol requests are limited to 64K words
(262,144 bytes) in length. This applies to the core X
protocol as well as to extension protocols such as PEX.
+o The function _X_v_c_L_o_a_d_V_i_d_e_o_F_o_r_m_a_t_C_o_m_b_i_n_a_t_i_o_n was thought
not to return a proper status code from servers running
on InfiniteReality graphics platforms. The problem was
later tracked down to use of XFlush() as opposed to
XSync() by ircombine (ircombine is fixed in post-6.2
releases).