Bounty 100 EUR - Displayport Alt Mode - Enable USB C to HDMI

[zzcool]

EDIT:

After extensive research and taking no for an answer I think I found the solution and It works!

no information on how to do it just pictures showing it ?

 

[fbloise]

hello

no information on how to do it just pictures showing it ?

I posted in reddit
https://www.reddit.com/r/SonyXperia/comments/9futz7/displaying_content_via_hdmi_on_xz_xz1/

 

[danfeng]

hello
I found this, is that possible to add this patch to kernel?

 

[SGH-i200]

The only way is usb to hdmi cable, but sony decided to disable this feature.

The missing link is the keyword "DisplayLink"! The "dp alt mode" would be cheaper, but this DisplayLink dongle does the job, too! :good:

"WAVLINK UG-3501H" (DisplayLink certified dl-3500 chipset)

After installing the app "DisplayLink Presenter") and a reboot for the Sony device, the picture was shown via HDMI.

I tested the this device with these smartphones:
1. Sony XZ1 (USB 3.1)
2. Axon 7 Mini (USB 2.0)

 

[SGH-i200]

HDMI Alt Mode for USB Type-C

Hello devs, Please look into enabling the displayport alt mode!!!

I would open that bounty to a implementation of "HDMI Alt Mode for USB Type-C": https://www.hdmi.org/manufacturer/HDMIAltModeUSBTypeC.aspx

Q: Are there any advantages over other Alt Mode implementations which are already in the market?
A: This allows native HDMI features and capabilities to be utilized in a source device and to be directly connected to any HDMI display. Other Alt Mode solutions do not enable HDMI-specific features and also require converters and connector adapters to connect to HDMI-enabled displays. A simple HDMI to USB Type-C cable can be used to connect USB Type-C devices to native HDMI displays.

As wikipedia states: "As of 2016 four system-defined Alternate Mode partner specifications exist." - MHL alt mode is one of them! :silly: https://en.wikipedia.org/wiki/USB-C#Alternate_Mode_partner_specifications

 

[mirhl]

At least on XZ2/XZ3 there's not even a mhl chip on the motherboard.
And internal HDMI (what's called "native source device" in the quote above?) that the SoC may even have isn't wired to anything.
https://github.com/sonyxperiadev/bug_tracker/issues/395

(starting with Xperia 1 they brought it back though)

 

[RighteousJoe]

A little off topic, but not too much. Has anyone had success with Miracast on Android Pie?

 

[mirhl]

Not personally, but why shouldn't it work? It's an official feature and all since as far as I can remember.