mirror of
https://github.com/nomi-san/parsec-vdd.git
synced 2026-08-07 13:50:45 +00:00
Nguyen Duy
115 lines
5.2 KiB
Markdown
115 lines
5.2 KiB
Markdown
# Parsec VDD Specs
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This document provides detailed specifications for the Parsec Virtual Display
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Driver (VDD). It includes information about the preset display modes, adapter,
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monitor and common usage scenarios.
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## Preset display modes
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All of the following display modes are set by driver default.
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| Resolution | Common Name | Aspect Ratio | Refresh Rates (Hz) |
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| --------------- | :---------: | :----------------: | :------------------: |
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| 4096 x 2160 | DCI 4K | 1.90:1 (256:135) | 24/30/60/144/240 |
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| 3840 x 2160 | 4K UHD | 16:9 | 24/30/60/144/240 |
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| 3840 x 1600 | UltraWide | 24:10 | 24/30/60/144/240 |
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| 3840 x 1080 | UltraWide | 32:9 (2x 16:9 FHD) | 24/30/60/144/240 |
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| 3440 x 1440 | | 21.5:9 (43:18) | 24/30/60/144/240 |
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| 3240 x 2160 | | 3:2 | 60 |
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| 3200 x 1800 | 3K | 16:9 | 24/30/60/144/240 |
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| 3000 x 2000 | | 3:2 | 60 |
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| 2880 x 1800 | 2.8K | 16:10 | 60 |
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| 2880 x 1620 | 2.8K | 16:9 | 24/30/60/144/240 |
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| 2736 x 1824 | | | 60 |
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| 2560 x 1600 | 2K | 16:10 | 24/30/60/144/240 |
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| 2560 x 1440 | 2K | 16:9 | 24/30/60/144/240 |
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| 2560 x 1080 | UltraWide | 21:9 | 24/30/60/144/240 |
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| 2496 x 1664 | | | 60 |
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| 2256 x 1504 | | | 60 |
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| 2048 x 1152 | | | 60/144/240 |
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| 1920 x 1200 | FHD | 16:10 | 60/144/240 |
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| **1920 x 1080** | **FHD** | **16:9** | 24/30/**60**/144/240 |
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| 1800 x 1200 | FHD | 3:2 | 60 |
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| 1680 x 1050 | HD+ | 16:10 | 60/144/240 |
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| 1600 x 1200 | HD+ | 4:3 | 24/30/60/144/240 |
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| 1600 x 900 | HD+ | 16:9 | 60/144/240 |
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| 1440 x 900 | HD | 16:10 | 60/144/240 |
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| 1366 x 768 | | | 60/144/240 |
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| 1280 x 800 | HD | 16:10 | 60/144/240 |
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| 1280 x 720 | HD | 16:9 | 60/144/240 |
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Notes:
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- Default display mode is 1920 x 1080 @ 60 Hz.
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- All resolutions are compatible with 60 Hz.
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- Low GPU such as GTX 1650 may get bugged when streaming in DCI 4K.
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To add more display modes (up to 5), check out this
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[official guide](https://support.parsec.app/hc/en-us/articles/32361359271444-VDD-Advanced-Configuration)
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from Parsec.
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## Driver implementation
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- Type: user mode
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- IddCx version: 1.4 or 1.5
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- IO control codes:
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```c
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// add monitor
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CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800 + 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
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// remove monitor
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CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800 + 2, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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// update timing
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CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800 + 3, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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// query version
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CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800 + 4, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
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// set preferred adapter LUID
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CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800 + 5, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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```
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## Adapter info
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| Property | Value |
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| ------------ | ---------------------------------------- |
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| Name | `Parsec Virtual Display Adapter` |
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| Hardware ID | `Root\Parsec\VDA` |
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| Class GUID | `{4d36e968-e325-11ce-bfc1-08002be10318}` |
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| Adapter GUID | `{00b41627-04c4-429e-a26e-0265cf50c8fa}` |
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## Monitor info
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| Property | Value |
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| -------- | ------------------------ |
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| ID | `PSCCDD0` |
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| Name | `ParsecVDA` |
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| EDID | (see the hex code below) |
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```
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00 FF FF FF FF FF FF 00 42 63 D0 CD ED 5F 84 00
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11 1E 01 04 A5 35 1E 78 3B 57 E0 A5 54 4F 9D 26
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12 50 54 27 CF 00 71 4F 81 80 81 40 81 C0 81 00
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95 00 B3 00 01 01 86 6F 80 A0 70 38 40 40 30 20
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35 00 E0 0E 11 00 00 1A 00 00 00 FD 00 30 A5 C1
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C1 29 01 0A 20 20 20 20 20 20 00 00 00 FC 00 50
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61 72 73 65 63 56 44 41 0A 20 20 20 00 00 00 10
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 C6
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02 03 10 00 4B 90 05 04 03 02 01 11 12 13 14 1F
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8A 4D 80 A0 70 38 2C 40 30 20 35 00 E0 0E 11 00
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00 1A FE 5B 80 A0 70 38 35 40 30 20 35 00 E0 0E
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11 00 00 1A FC 7E 80 88 70 38 12 40 18 20 35 00
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E0 0E 11 00 00 1E A4 9C 80 A0 70 38 59 40 30 20
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35 00 E0 0E 11 00 00 1A 02 3A 80 18 71 38 2D 40
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58 2C 45 00 E0 0E 11 00 00 1E 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A6
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```
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Notes:
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- Visit [edidreader.com](http://www.edidreader.com/) to view it online or use an
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advanced tool
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[AW EDID Editor](https://www.analogway.com/apac/products/software-tools/aw-edid-editor/).
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- The EDID could be used to replace HDMI dongle's EDID to get better display
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timing. Use
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[EDID Writer](https://www.monitortests.com/forum/Thread-EDID-DisplayID-Writer)
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to replace.
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