IddSampleDriver
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ge9
How difficult would it be to add HDR flags to the EDID
Not my area of expertise but can you add HDR EDID flags so the pc can enable HDR mode? I would like this for streaming HDR from a headless machine
This is discussed at the original repo, but currently not solved. Maybe impossible with "indirect display driver" technology used in this driver.
Sorry to necro this issue, but it looks like the latest update for IddCx (1.10) has support for wide calour gamut/HDR? Is there a way to easily integrate this?
It's also discussed at the original repo. I'll test it when it's available in my Windows.
Ars reports that most of the features may actually already have shipped in last month 22H2 update. So maybe that's why the IddCx docs had this weird SV3=September equivalence.
I did try to look into this but I didn't find the include file for the 1.10 version in the latest version of the wdk.
So I don't know how I can use the new functions described here: https://learn.microsoft.com/en-us/windows-hardware/drivers/display/iddcx1.10-updates
https://github.com/roshkins/IddSampleDriver/issues/23#issuecomment-1788967517
At least I confirmed IddCxGetVersion function returns 0x1A00 in my Windows 11 machine.
I changed IDDCX_VERSION_MINOR from 0 to 2, so it means 1.2 (not 1.10).
I also don't have directory "1.10" in the folder.
Still I'm not sure "1.2" will work correctly though.
I managed to get it to work (at least on my pc). You can try it here : https://github.com/baloukj/IddSampleDriver/releases/tag/0.1.0 If you want to build it, you need to install the WDK Insider Preview builds (Canary) - Build 25997.
It's not the cleanest code ever but I did try it with moonlight on another desktop and it worked.
I managed to get it works (at least on my pc). You can try it here : https://github.com/baloukj/IddSampleDriver/releases/tag/0.1.0 If you want to build it, you need to install the WDK Insider Preview builds (Canary) - Build 25997.
It's not the cleanest code ever but I did try it with moonlight on another desktop and it worked.
OMG THANK YOU!!! It works on my VM running Windows 11 23590.1000 with the Insider Preview WDK. I tried to mess with the code myself but C++ isn't in my wheelhouse, so I didn't get too far.
Great! It worked on my Windows 11 22H2 (not Insider Preview version)! I recommend announcing your version also on the original repo: https://github.com/roshkins/IddSampleDriver/issues/23 @baloukj I also confirmed this version (naturally) fails in Windows 10 with "This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)".
I did try to follow the official documentation to make it work in all windows (detect available version) but i'm not sure as I didn't make any tests. I just updated the code a little bit to allow 8bit in sdr (it can help with streaming in sdr) and I did try to install it on a windows 10 VM and it seems to work (in sdr). https://github.com/baloukj/IddSampleDriver/releases/tag/0.1.1
Do you want me to make a pull request ? I really don't have the time to maintain something like this. I didn't spend more than half a day on this, I just wanted to make it work for my personnal usage 🤣
Thanks for your prompt update and helpful testing. I tested it on my physical Windows 10 machine but it stucks with the same error 31... But your initial version may be sufficient for most users. I currenly don't have Windows SDK Insider Preview build, but I may want your pull request at some time in the future.
Windows 10 would definitely be useful if it can be made to work at some point.
Did it work on a headless machine?
I can confirm, it is working on a headless machine. In first try, I believe I tested with unsupported AMD GPU. I switch new Azure VM with different AMD GPU and it worked!
you might want to check this fork https://github.com/itsmikethetech/Virtual-Display-Driver
