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[Aaditya <aadityabhatia@xxxxxxxxx>]

Xorg's memory consumption goes up each time the tty is switched to or
from the one running the X server, and each time the box is suspended &
resumed. The increase at each step depends on the 'pixmem' size.

In the following, I switched between tty1 (CLI) and tty7 (X) and took a reading each time I returned to tty7. Only `firefox` and `gnome-terminal` windows were open.
 
$ top -bn1 |grep Xorg
 2816 root      20   0  556m  63m  17m S    2  1.6   0:06.87 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  606m  79m  20m S    0  2.1   0:08.54 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  653m  92m  23m S    2  2.4   0:10.30 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  701m 106m  25m S    0  2.7   0:12.19 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  750m 117m  27m S    0  3.0   0:13.95 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  798m 130m  30m S    2  3.4   0:15.74 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  845m 144m  32m S    0  3.7   0:17.52 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  893m 157m  35m S    0  4.1   0:20.08 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0  960m 210m  44m S    2  5.4   1:01.58 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0 1007m 229m  46m R   70  5.9   1:08.70 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0 1052m 242m  49m S   74  6.2   1:17.90 Xorg                                   
$ top -bn1 |grep Xorg
 2816 root      20   0 1101m 257m  51m R   71  6.6   1:23.54 Xorg 

In the following, there was one suspend & resume between any two
consecutive commands. Again, only `firefox` and `gnome-terminal` windows
were open.

$ top -bn1 |grep Xorg
23595 root      20   0  526m 103m  24m S    4  2.7   3:59.37 Xorg                                   
$ top -bn1 |grep Xorg
23595 root      20   0  587m 123m  24m S    6  3.2   4:03.11 Xorg                                   
$ top -bn1 |grep Xorg
23595 root      20   0  675m 145m  25m S    4  3.8   4:11.56 Xorg                                   
$ top -bn1 |grep Xorg
23595 root      20   0  723m 160m  26m S    4  4.1   4:23.90 Xorg

`xrestop`'s output showed no significant change, but the increases in Xorg's resident memory in each step approximately equal to the total memory according to `xrestop`:
          Pixmaps:   17925K total, Other:     122K total, All:   18047K total

The box is running Jaunty, amd64; all packages are up to date.
$ lspci |grep Display
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03)
$ cat /proc/version
Linux version 2.6.28-11-generic (buildd@crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009

-- 
MASTER: memory leak
https://bugs.launchpad.net/bugs/98783
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