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Thread: ATI X.Org Driver Gains Embedded DisplayPort

  1. #1
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    Default ATI X.Org Driver Gains Embedded DisplayPort

    Phoronix: ATI X.Org Driver Gains Embedded DisplayPort

    AMD's Alex Deucher has just committed initial support for Embedded DisplayPort (eDP) connectors/monitors to the xf86-video-ati DDX display driver. Traditional DisplayPort monitors are already supported by this open-source ATI driver, but now Embedded DisplayPort connectors should begin to work as well...

    http://www.phoronix.com/vr.php?view=Nzg2Mw

  2. #2
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    Default Interesting comment in the git log...

    radeon: fallback to i2c for edid if aux fails

    In case of a DP->DVI adapter for example.
    So what kind of beast is this DP-DVI adapter? Something to plug into a graphics card's DP port, or something to plug into a monitor's DP port? Because I actually have a monitor with DP support, and it might be fun to try this out.

  3. #3
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    Quote Originally Posted by chrisr View Post
    So what kind of beast is this DP-DVI adapter? Something to plug into a graphics card's DP port, or something to plug into a monitor's DP port? Because I actually have a monitor with DP support, and it might be fun to try this out.
    What are you quoting and what is its relation to eDP?

  4. #4
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    Default Like the title said...

    Quote Originally Posted by droidhacker View Post
    What are you quoting and what is its relation to eDP?
    Goto xf86-video-ati git repository.

    Type:
    $ git log

    Read log.

  5. #5
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    Default

    Quote Originally Posted by chrisr View Post
    So what kind of beast is this DP-DVI adapter? Something to plug into a graphics card's DP port, or something to plug into a monitor's DP port? Because I actually have a monitor with DP support, and it might be fun to try this out.
    Something you plug into the DP port on your video card to connect a DVI monitor.

  6. #6
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    Default

    Quote Originally Posted by chrisr View Post
    radeon: fallback to i2c for edid if aux fails

    In case of a DP->DVI adapter for example.
    So what kind of beast is this DP-DVI adapter?
    You read it wrong. He wrote DP -> (= arrow) DVI adapter.

    This is what I think he means: if the ATI card cannot find a display port signal at it's display port it won't use it's display port by default. Users will have to edit i2C when they connected something else at the display port in order for it to work. For example, because a user connected a DP-to-DVI cable.

  7. #7
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    Default

    Sounds great, but is there any particular reason this was posted in the "Open-Source NVIDIA Linux" forum?

  8. #8
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    Quote Originally Posted by CrystalCowboy View Post
    Sounds great, but is there any particular reason this was posted in the "Open-Source NVIDIA Linux" forum?
    Out of spite, I guess.

  9. #9
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    eDP (embedded DisplayPort) is the replacement for LVDS (Low Voltage Differential Signalling) for Laptops.

    There is no connector that is user visible, it is embedded inside the unit for driving the DisplayPort panel already attached to the unit.

    This is needed for newer laptops to get pixels lit up on the LCD panel.

  10. #10
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    Default Displayport 1.2 was just announced.

    Is Alex's code in support of Displayport 1.2 or just 1.1, does anyone know?

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