• NVIDIA TwinView — an NVIDIA-specific driver extension that supports Xinerama-like
functionality across the two video ports of an NVIDIA graphics card. When configured, it allows the
X server to manage the output of dual video ports as one continuous display or X screen. User
windows can traverse the entire graphics card framebuffer. Note: Xinerama can integrate each
NVIDIA TwinView device as one logical display in a series of continuous displays.
• ATI Big Desktop — an ATI-specific driver configuration mode that supports Xinerama-like
functionality across the two video ports of an ATI graphics card. When configured, it allows the X
server to manage the output of dual video ports as one continuous display or X screen. User
windows can traverse the entire graphics card framebuffer. Note: This mode is only configurable
with the provided configuration tool,
Installer Kit CDs, this utility resides in the directory:
This utility configures a new XF86Config or xorg.conf file with the necessary driver bit-flags properly
set. See included documentation for more information.
Note: HP does not currently support any PCI-based ATI cards for Personal Workstations.
Multi-Monitor Configuration Strategies
Multi-monitor workstations must balance a number of configuration details to deliver optimal
functionality and performance. Users should consider the following when designing an ideal multi-
• Performance — continuous display configurations should consider:
– Faster PCIe-slots — graphics cards driving 3D/2D accelerated content for highest performance.
– Slower PCI-slots — graphics cards typically driving 2D content (user-interface, windows) for
– Number of cards — more cards require greater system bandwidth that can reduce refresh
performance and interactivity.
– X server addressable screen units — 32000 units high/wide maximum for any continuous
• Supportability — continuous display configurations should consider:
– Matched monitor model type and functionality
– Matched monitor resolution and refresh frequencies
• Ergonomics — physical monitor placement should follow best practices for ergonomic design —
display configurations that are excessively wide can result in user fatigue and eye strain
, from ATI. When installed from the HP Linux