Port drivers are modules within the Intel® Embedded Media and Graphics
Driver that control SCH-specific modules such as SCH LVDS,
SCH TV or add-on modules to SCH. The table below lists the attributes
available to port drivers. Some of these standard attributes can be customized
for specific port drivers and are detailed in the following topics:
In the attribute tables, device-specific (non-standard)
attributes are highlighted in gray.
Note:Not
all standard attributes are supported by all port drivers. Please see
the topics mentioned above for details on the specific attributes supported
by each port driver. Flat panel settings are specified via the FPINFO
options of the configuration; please see For flat panel backlight timing
settings, please see the Intel®
Embedded Media and Graphics Driver User Guide.
Standard Port Driver Attributes
Attribute Name
Attribute ID Number
Description
BRIGHTNESS
0
Brightness adjustment.
CONTRAST
1
Contrast adjustment.
HUE
2
Hue adjustment.
FLICKER
3
Setting to reduce flicker.
HPOSITION
4
Controls the horizontal position of the display.
VPOSITION
5
Controls the vertical position of the display.
HSCALE
6
Horizontal scaling ratio.
VSCALE
7
Vertical scaling ratio.
TVFORMAT
8
TV formats are device-specific.
DISPLAY TYPE
9
Allows selection of different displays for multi-display
devices. This attribute is device-specific.
LUMA FILTER
10
TV Luma Filter adjustment.
CHROMA FILTER
11
Chroma Filter adjustment.
TEXT FILTER
12
Text Filter adjustment.
TV OUTPUT TYPE
14
TV output types. This attribute is device-specific.
SATURATION
15
Saturation adjustment.
PANEL FIT
18
Panel fitting. Yes or no.
SCALING RATIO
19
Output Scaling. Device-specific.
FP BACKLIGHT ENABLE
20
Enable flat panel backlight.
PANEL DEPTH
26
Can be either 18 or 24. 18 specifies 6-bit output
per color, 24 specifies 8-bit output per color.
DUAL CHANNEL PANEL
27
Is it a dual channel panel or not? Takes 0 or 1.
GANG MODE
28
For achieving a Gang mode output using two digital
ports.
GANG MODE EVEN ODD
29
Gang display even or odd. This attribute is to be
set along with Gang mode (28). This mode (Gang Mode Even Odd) puts even
pixels on one digital port and odd pixels on the other, and needs to
be selected based on the display panel used.
SHARPNESS
31
Sharpness.
HWCONFIG
32
Hardware Configuration for SDVO encoders that support
multiple configurations.
HORZFILTER
33
Horizontal Filter.
VERTFILTER
34
Vertical Filter.
FRAME BUFFER GAMMA
35
Framebuffer gamma correction.
FRAME BUFFER BRIGHTNESS
36
Framebuffer brightness.
FRAME BUFFER CONTRAST
37
Framebuffer contrast.
2D FLICKER
39
Two-dimension flicker.
ADAPTIVE FLICKER
40
Adaptive flicker.
HORIZONTAL OVERSCAN
41
Horizontal overscan.
VERTICAL OVERSCAN
42
Vertical overscan.
SPREAD SPECTRUM CLOCKING
43
Spectrum Clocking
DOT_CRAWL
44
Dot crawl affects the edges of color and manifests
itself as moving dots of color along these edges.
DITHER
45
Dither setting
PANEL PROTECT HSYNC
46
Horizontal sync panel protection
PANEL PROTECT VSYNC
47
Vertical sync panel protection
PANEL PROTECT PIXCLK
48
Pixel clock protection
LVDS PANEL TYPE
49
This is used to select SPWG vs. OpenLDI panel types.
0 = SPWG; 1 = OpenLDI.
VGA 2X IMAGE
57
Controls VGA image in Gang mode.
TEXT ENHANCEMENT
58
Controls text tuning.
MAINTAIN ASPECT RATIO
59
This controls scaled image to match source image
aspect ratio or full screen image.
FIXED TIMING
60
This indicates whether the attached display is a
fixed timing display.
INTENSITY
70
This attribute provides a method to control the
backlight intensity. It is not a method to turn on backlight but provides
a way to adjust its value in percentages from 0% to 100%
*Other names and brands may be claimed as the property of others. Revised June 20, 2011