DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH enumeration (dispmprt.h)
Syntax
typedef enum _DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH {
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_UNINITIALIZED,
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_SUFFICIENT,
DXGK_DIAG_DISPLAY_HARDWARE_LINK_BANDWIDTH_LIMITED,
DXGK_DIAG_DISPLAY_HARDWARE_SOC_BANDWIDTH_LIMITED,
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_ERROR,
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_UNKNOWN
} DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH;
Constants
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_UNINITIALIZEDReserved for OS use during diagnostic initialization. |
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_SUFFICIENTThe bandwidth required to drive the last set display mode on the given target is within the range of what the display hardware and monitor/link can support. |
DXGK_DIAG_DISPLAY_HARDWARE_LINK_BANDWIDTH_LIMITEDThe bandwidth limitation is on the link or monitor end, and the link negotiation did not result in sufficient bandwidth. Do not set this field if the current target/monitor bus protocol cannot determine the bandwidth it supports. |
DXGK_DIAG_DISPLAY_HARDWARE_SOC_BANDWIDTH_LIMITEDThe bandwidth limitation is on the display hardware side and silicon cannot support the currently needed bandwidth. |
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_ERRORThis value should be used in rare cases where the driver has hit some error while doing any bandwidth calculations so that all other fields are still filled. |
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH_UNKNOWNThe driver could not calculate the bandwidth requirements for the given monitor/link and/or SOC. This value should be used in rare cases where the driver does not implement the calculation of bandwidth requirements. |
Remarks
The DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH enumeration is a member of the DXGK_DISPLAYSTATE_INTRUSIVE structure. It is used while gathering display diagnostic information via calls to DxgkDdiGetDisplayStateIntrusive.
DXGK_DIAG_DISPLAY_HARDWARE_BANDWIDTH tells the operating system whether the display hardware including the link (for example, displayport) has sufficient bandwidth to drive the display on the given target at the last set mode (resolution, refresh rate).
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 2004 |
| Header | dispmprt.h |