Public bug reported:

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System
-> About Ubuntu

$ lsb_release -rd
Description:    Ubuntu 13.04
Release:        13.04

Kubuntu, actually.

2) The version of the package you are using, via 'apt-cache policy pkgname' or 
by checking in Software Center
$ apt-cache policy xserver-xorg-video-r128
xserver-xorg-video-r128:
  Installed: 6.9.1-0ubuntu1
  Candidate: 6.9.1-0ubuntu1
  Version table:
 *** 6.9.1-0ubuntu1 0
        500 http://ubuntu.osuosl.org/ubuntu/ raring/main i386 Packages
        100 /var/lib/dpkg/status

3) What you expected to happen
Normal operation

4) What happened instead
X/KDE crashes and restarts at the first key entered.


>From kdm.log:

(EE) 
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0xb771ef49]
(EE) 1: /usr/bin/X (0xb7571000+0x1b1e86) [0xb7722e86]
(EE) 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb754e40c]
(EE) 3: /usr/lib/xorg/modules/drivers/r128_drv.so (0xb6f69000+0x47a8) 
[0xb6f6d7a8]
(EE) 4: /usr/bin/X (0xb7571000+0xcb3d8) [0xb763c3d8]
(EE) 5: /usr/bin/X (0xb7571000+0xc9c36) [0xb763ac36]
(EE) 6: /usr/bin/X (miPointerUpdateSprite+0x2aa) [0xb7708c3a]
(EE) 7: /usr/bin/X (0xb7571000+0x197eca) [0xb7708eca]
(EE) 8: /usr/bin/X (0xb7571000+0xd8fdb) [0xb7649fdb]
(EE) 9: /usr/bin/X (0xb7571000+0x129a06) [0xb769aa06]
(EE) 10: /usr/bin/X (0xb7571000+0x46efb) [0xb75b7efb]
(EE) 11: /usr/bin/X (WindowHasNewCursor+0x3b) [0xb75b92eb]
(EE) 12: /usr/bin/X (ChangeWindowAttributes+0xb4c) [0xb75e0bbc]
(EE) 13: /usr/bin/X (0xb7571000+0x37937) [0xb75a8937]
(EE) 14: /usr/bin/X (0xb7571000+0x3e035) [0xb75af035]
(EE) 15: /usr/bin/X (0xb7571000+0x2b525) [0xb759c525]
(EE) 16: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0xb7153935]
(EE) 17: /usr/bin/X (0xb7571000+0x2b8f9) [0xb759c8f9]
(EE) 
(EE) Segmentation fault at address 0xb6dba000

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting

(EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional 
information.
(EE) 
Server terminated with error (1). Closing log file.

Also, in /var/log/kern.log at each crash (host name obfuscated for privacy): 
Jun  8 03:26:02 <host name> kernel: [  830.834491] mtrr: no MTRR for 
e8000000,1000000 found

This is reproducible at will (log onto my KDE desktop, open the K menu,
put the focus in the application "Search" box and hit a key. Konsole
also crashes X. The GUI is completely unusable.  The odd part is that
Firefox accepts key strokes in the navigation bar just fine.

Possible that this is not an r128 driver bug?

Please advise what else I can provide.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xserver-xorg-video-r128 6.9.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Uname: Linux 3.8.0-23-generic i686
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: i386
Date: Fri Jun  7 21:38:53 2013
MarkForUpload: True
SourcePackage: xserver-xorg-video-r128
UpgradeStatus: Upgraded to raring on 2013-04-28 (40 days ago)

** Affects: xserver-xorg-video-r128 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 raring

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https://bugs.launchpad.net/bugs/1188894

Title:
  Hitting any key in Kubuntu K menu search box crashes X

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