Hello,
We are in process to migrate our Thin client to a new Linux install and we are facing a problem : Problem : We experience very slow scroll speed (lets say, cat /var/log/messages) in Gnome terminal via XDMCP. (1M file : 1.5 minute to display) Prognostic : We don't know exactly why this is happening. We suspect GTK/QT handling of bitmap or vector to be a problem. This is maybe due to Xorg extension. Observation : * Under Konsole (KDE/QT3) we are able to display a 1M file in about 1.3 second (very smooth scrolling). * Under Terminal (Gnome/GTK) we display the same file in a full screen Terminal in about 1.5 minute. * When displaying the text file via Konsole, the thin client receive about 2Megs of data from the server. * When displaying the text file via Terminal, the thin client receive about 9 to 15Megs of data from the server. Setup : On the thin client we use ... X Protocol Version 11, Revision 0, Release 7.1.1 Kernel 2.6.18-92.1.17.el5 Gnome 2.16 KDE 3.5 On the fat server ... X Protocol Version 11, Revision 0, Release 6.8.2 Kernel 2.6.9-78.0.1.ELsmp Gnome 2.8 KDE 3.3 Question : We would like to know if this could be related to X protocol or the way things are handled when drawing text ? Note that we are able with Ubuntu 8.04 to get a better performance (still, 10 times higher with Terminal then Konsole, but good (11 seconds). Thank you in advance ! -- Jean-Francois Bouchard Note in the log file on the thin client we see the following extension loading : (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so (II) Loading extension SHAPE (II) Loading extension MIT-SUNDRY-NONSTANDARD (II) Loading extension BIG-REQUESTS (II) Loading extension SYNC (II) Loading extension MIT-SCREEN-SAVER (II) Loading extension XC-MISC (II) Loading extension XFree86-VidModeExtension (II) Loading extension XFree86-Misc (II) Loading extension XFree86-DGA (II) Loading extension DPMS (II) Loading extension TOG-CUP (II) Loading extension Extended-Visual-Information (II) Loading extension XVideo (II) Loading extension XVideo-MotionCompensation (II) Loading extension X-Resource (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so (II) Loading extension DOUBLE-BUFFER (II) Loading /usr/lib/xorg/modules/extensions/libglx.so (II) Loading extension GLX (II) Loading /usr/lib/xorg/modules/extensions/librecord.so (II) Loading extension RECORD (II) Loading /usr/lib/xorg/modules/extensions/libdri.so (II) Loading extension XFree86-DRI (II) Initializing built-in extension MIT-SHM (II) Initializing built-in extension XInputExtension (II) Initializing built-in extension XTEST (II) Initializing built-in extension XKEYBOARD (II) Initializing built-in extension XC-APPGROUP (II) Initializing built-in extension SECURITY (II) Initializing built-in extension XINERAMA (II) Initializing built-in extension XFIXES (II) Initializing built-in extension XFree86-Bigfont (II) Initializing built-in extension RENDER (II) Initializing built-in extension RANDR (II) Initializing built-in extension COMPOSITE (II) Initializing built-in extension DAMAGE (II) Initializing built-in extension XEVIE _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg