4

I bought a HDMI to DP cable to connect my Raspberry Pi 2 to a screen with Display Port.

HDMI to DP cable

Unfortunately I get no output on the screen.

Is it possible to connect the Raspberry Pi 2 to a screen with display port using this cable? What would I need to configure to achieve this?

Note: I get video output on my TV while using a plain HDMI cable.

  • 2
    I am pretty sure that this cable actually is a DP-to-HDMI cable not HDMI-to-DP, mind the direction. While there are DP ports able to support HMDI signals (DisplayPort Dual-mode) HDMI does not support DP, so a simple (passive) cable cannout simply reroute some signal lines on different connectors. – Ghanima Feb 11 '15 at 17:33
11

That cable is most likely a DisplayPort-to-HDMI cable not a HDMI-to-DisplayPort cable (mind the direction). While there are DP ports able to support HMDI signals (DisplayPort Dual-mode) HDMI does not support DP directly. Since HDMI data transmission is very different from DP there will be no simple (passive) cable that just re-routes some signal lines on the different connectors.

DisplayPort@Wikipedia: "The DisplayPort signal is not compatible with DVI or HDMI. However, Dual-mode DisplayPorts are designed to transmit a single-link DVI or HDMI 1.2/1.4 protocol across the interface through the use of an external passive adapter that selects the desired signal and converts the electrical signaling from LVDS to TMDS." and HDMI@Wikipedia: "DisplayPort ports can be made so that they are compatible with single-link DVI and HDMI 1.4.[200] Compatibility is achieved with DisplayPort Dual-mode ports, which are marked with the ++DP logo, using attached passive adapters". So while these cables can connect a DP appliance to a HDMI display it's not possible to connect a HDMI appliance (such as the RPi) to a DP display.

  • "Display Port Kabel auf HDMI" - I missed this small detail even though it was in the ebay item title ;-) – czerasz Feb 12 '15 at 0:15
-2

You may try to force HDMI output by editing /boot/config.txt

hdmi_force_hotplug=1
hdmi_drive=2

Source

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.