Synopsis

xorg-x11-server bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated xorg-x11-server packages that fix several bugs and add various
enhancements are now available for Red Hat Enterprise Linux 6.

Description

The xorg-x11-server packages provide the X.Org sample implementation of a server
for the X Window System and the rendering services necessary for graphical user
environments, such as GNOME and KDE.

Updated xorg-x11-server packages that fix several bugs are now available for Red
Hat Enterprise Linux 6.

The xorg-x11-server packages have been upgraded to upstream version 1.13.0,
which provides a number of bug fixes and enhancements over the previous version.
(BZ#833212)

This update fixes the following bugs:

• When the GNOME sound volume applet was configured to pop up after pressing the

"mute", "volume up", or "volume down" hardware buttons, doing so caused a
graphical glitch to appear in a dual monitor configuration. Now, the screen
glitch no longer appears. (BZ#608076)

• When spice-client was opened in full-screen mode, the client screen contained

a static image which was not refreshed until it was switched back to window
mode. Now, the static image no longer appears when opened in full-screen mode.
(BZ#745033)

• When the screen saver started to fade, pressing keys did not interrupt the

fade and did not immediately display the unlock screen. Now, pressing keys stops
the screen from fading. (BZ#816347)

• A NULL pointer dereference caused X.Org to terminate unexpectedly with a

segmentation fault on certain servers. The error is fixed and X.Org no longer
crashes on those servers. (BZ#829321)

• An invalid pointer dereference in the server caused the server to unexpectedly

terminate with a segmentation fault when the mouse was moved over the VNC
window. Crashes no longer occur when moving the mouse over the VNC window.
(BZ#837073)

• The KVM process could not access the X server because the "/usr/bin/Xorg"

binary was unreadable for non-root users. Now, all users can read the binary and
KVM guests can access host operating systems. (BZ#853236)

• A transformation matrix is used to bind a device to a specific area on the

screen. An uninitialized device transformation matrix caused the pointer to jump
to the top-left corner of the screen on some devices. With this update, the
transformation matrix is properly initialized and pointer device movement works
as expected. (BZ#858005)

• An X Input Extension (XI 1.x) grab on a disabled device led to a NULL pointer

dereference error which caused the server to terminate unexpectedly. Currently,
the XI 1.x grab functions normally and the X server no longer crashes.
(BZ#863913)

• When screens are reconfigured, the server updates some internal fields to

adjust input device coordinate scaling if the device is bound to a specific
screen. The NVIDIA binary driver did not have access to these internal methods,
and was not able to update these fields when it changed output configurations. A
new API is now exported for the driver and the NVIDIA driver is now able to
update the server-internal fields. (BZ#864054)

• Pointer screen crossings for non-Xinerama setups caused the mouse pointer to

wrap around on the first screen instead of moving to the second screen. Now, the
mouse pointer can move between both screens on non-Xinerama setups. (BZ#868054)

• Running xrestop on servers that used Intel, ATI or Nouveau drivers caused the

server to terminate unexpectedly with a segmentation fault. Now, users are able
to run xrestop on those servers without crashes. (BZ#883206)

Users of xorg-x11-server are advised to upgrade to these updated packages, which
fix these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously-released errata relevant
to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 608076 - gnome sound volume applet leaves flicker on screen
• BZ - 745033 - INTEL: spice-client canvas is not being refreshed in specific display layout
• BZ - 816347 - On screenlock when the screen fades, pressing keys to prevent the lockout does not work
• BZ - 858005 - Mouse jumps to edges / corners when using an absolute input device (ie virtual machine usb tablet)
• BZ - 863913 - Grabbing a disabled device crashes the server
• BZ - 868054 - Regression: screen crossing for non-Xinerama setups is broken
• BZ - 879632 - [mi] EQ overflowing. Backtraces from mieqEnqueue
• BZ - 883206 - running xrestop crashes the server
• BZ - 887759 - Indirect rendering broken was Xorg issues w/ Intel i915 driver on RHEL 6.4 beta,
• BZ - 893295 - blank and unresponsive console after X exit

CVEs

(none)

References

(none)