Integrated Graphics Subsystem

The integrated graphics controller will use, in standard VGA/SVGA modes, pre-allocated memory as a true dedicated frame buffer. If the system boots with the OS loading the Extreme Graphics drivers, the pre-allocated memory will then be re-claimed by the drivers and may or may not be used in the “extended” graphic modes. However, it is important to note that pre-allocated memory is available only to the integrated graphics controller, not to the OS.

The DVMT function is an enhancement over the Unified Memory Architecture (UMA) of earlier systems. The DVMT of the Q57 selects, during the boot process, the maximum graphics memory allocation possible according on the amount of system memory installed:

The actual amount of system memory used in the “extended” or “extreme” modes will increase and decrease dynamically according to the needs of the application. The amount of memory used solely for graphics (video) may be reported in a message on the screen, depending on the operating system and/or applications running on the machine.

For viewing the maximum amount of available frame buffer memory MS Windows go to the Control Panel and select the Display icon, then > Settings > Advanced > Adapter.

The Microsoft Direct Diagnostic tool included in most versions of Windows may be used to check the amount of video memory being used. The Display tab of the utility the “Approx. Total Memory” label will indicate the amount of video memory. The value will vary according to OS.

Some applications, particularly games that require advanced 3D hardware acceleration, may not install or run correctly on systems using the integrated graphics controller.

Table 6-3 listed the relostions supported by the integrated graphic controller. Other resolutions may be possible have not been tested or qualified by HP.

Table 6-3.

Integrated Graphics Controller

Supported Resolutions

 

 

 

Maximum Refresh Rate

Resolution

 

 

Analog

Digital

640 x 480

85

60

800 x 600

85

60

1024 x 768

85

60

1280 x 720

85

60

1280 x 1024

85

60

1440 x 900

75

60

1600 x 1200

85

60

1680 x 1050

75

60

1920 x 1080

85

60-R

1920 x 1200

85

60-R

1920 x 1440

85

n/a

2048 x 1536

75

n/a

2560 x 1600

n/a

60 [1]

NOTES:

Other resolutions may be possible but have not been tested or qualified by HP. [1] Only supported when using a DisplayPort connection.

 

6-4

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Technical Reference Guide

Page 70
Image 70
HP 8100 manual Integrated Graphics Controller Supported Resolutions, Maximum Refresh Rate, Resolution Analog Digital

8100 specifications

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