RHEA-2011:1652 - Product Enhancement Advisory

Topic

An updated gnome-screensaver package that fixes various bugs and adds one
enhancement is now available for Red Hat Enterprise Linux 6.

Description

The gnome-screensaver package contains the GNOME project's official screen saver
program. It is designed for improved integration with the GNOME desktop,
including themeability, language support, and Human Interface Guidelines (HIG)
compliance. It also provides screen-locking and fast user-switching from a
locked screen.

This update fixes the following bugs:

• When the user locked the screen and the X Window System did not support the X

Resize, Rotate (XRandR) or XF86VM gamma fade extensions, then the
gnome-screensaver utility terminated with a segmentation fault. With this
update, additional checks are made before calling the fade_setup() function, and
gnome-screensaver no longer terminates. (BZ#648850)

• Prior to this update, the Unlock dialog box arbitrarily changed between the

monitors in dual head setups, based on the position of the mouse pointer. The
Unlock dialog box is now placed on a consistent monitor instead of where the
mouse is located. (BZ#697892)

• Previously, when docking a laptop and using an external monitor, parts of the

background got cut off due to incorrect logic for determining monitor
dimensions. With this update, the source code is modified and the login screen
is now displayed correctly. (BZ#719023)

• Previously, in rare cases, the screen saver entered a deadlock if monitors

were removed during the fade up. The screen was locked as a consequence. This
update modifies gnome-screensaver so that the screen saver responds as expected.
(BZ#740892)

This update also adds the following enhancement:

• Previously, there was no indicator of the keyboard layout when the screen was

locked. Users who used more than one layout did not know which layout was
active. Consequently, users could be forced to type the password several times.
This update adds the missing keyboard layout indicator. (BZ#677580)

All users of gnome-screensaver are advised to upgrade to this updated package,
which fixes these bugs and adds this enhancement.

Solution

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

This update is available via Red Hat Network. Details on how to use the Red Hat
Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

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 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 Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 648850 - Don't crash on systems that don't support XF86VM or XRANDR gamma fade
• BZ - 697892 - gnome-screensaver unlock dialog randomly switches screen with nvidia Twinview enabled
• BZ - 740892 - Deadlock in on_screen_monitors_changed
• BZ - 743876 - gnome-screensaver lock malfunction on dual-monitor

CVEs

(none)

References

(none)