RHBA-2009:1390 - Bug Fix Advisory

Topic

An updated xorg-x11-drv-mga driver which fixes several bugs is now
available.

Description

xorg-x11-drv-mga is a video driver for the X.Org implementation of the X
Window System, for Matrox G-series chips.

This updated package provide the following bug fixes:

• the driver version written to the Xorg log file in /var/log/ did not

reliably match the driver version in use. (The Xorg log file reported
version 1.4.1 when the version in use was 1.4.2.) With this update, this
error has been corrected and the Xorg log file reports the driver version
accurately. (BZ#474209)

• some video cards based on the Matrox G200SE chip-set do not have enough

installed RAM to support 24-bits per pixel (bpp) at 1024 x 768 pixels
resolution. Previously, the xorg-x11-drv-mga driver automatically switched
output to 16-bpp when a display being driven by such a card was running at
1024 x 768 (XGA) pixels resolution regardless of the amount of installed
RAM. With this update, only cards with 2 MB of RAM or less are
automatically switched to 16-bpp. Matrox G200SE-based video cards with more
installed RAM can now display 24-bpp at 1024 x 768. (BZ#479919)

• the limited bandwidth of the G200SE chip-set caused some 24-bit color

modes to be rejected when using the default 32-bpp framebuffer. With this
update, a 24-bpp packed framebuffer is now the default for G200SE-based
cards. This reduces the bandwidth required and allows otherwise rejected
modes to work. Note: the 32-bpp framebuffer is still the default for other
chip-sets. (BZ#508039)

All xorg-x11-drv-mga users should upgrade to this updated package which
addresses these issues.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 474209 - version of driver is wrong in X log
• BZ - 479919 - hts-5.3-12 VIDEO test FAIL on mga driver
• BZ - 508039 - Use 24bpp framebuffer on g200se to avoid bandwidth limit

CVEs

(none)

References

(none)