Intel VAAPI howto with Leia v18 nightly based on Ubuntu 18.04 server
(2015-10-08, 01:29)Sunflux Wrote: What projector are you using? If dithering is having such an impact, then it sounds like you aren't actually outputting limited via the new passthrough option (I haven't seen dithering do anything visible in Passthrough mode, but it definitely has an effect in Full mode, which is less ideal).

I am using a Viewsonic Pro8200 projector.

So to test your theory, I loaded up the black bars and increased the brightness on my projector. I see bars below 15. Does that mean Full is getting passed? FYI, my projector is set to Limited.

Image

Code:
OpenELEC:~ # xrandr --verbose
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
HDMI1 connected 1920x1080+0+0 (0x47) normal (normal left inverted right x axis y axis) 520mm x 290mm
    Identifier: 0x42
    Timestamp:  1230566513
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       0
    CRTCs:      0 1 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter:
    EDID:
        00ffffffffffff0011ee400001010101
        00180103800000780a9abb9f60519c23
        0e4d59ffef80a9409500904081806159
        455901010101023a801871382d40582c
        450000000000001e000000ff00533846
        3132343130303431300a000000fc0044
        454e4f4e2d41565248440a20000000fd
        00325a0f6410000a20202020202001f9
        020336f14f90050403071f1413121601
        0f241e26350f7f071507503d1ec04d02
        005706015f7e01677e01835f00006703
        0c002500882d023a801871382d40582c
        450008222100001e023a80d072382d40
        102c458008222100001e011d8018711c
        1620582c250008222100009e011d0072
        51d01e206e28550008222100001e0091
    aspect ratio: Automatic
        supported: Automatic, 4:3, 16:9
    Broadcast RGB: Video 16:235 pass-through
        supported: Automatic, Full, Limited 16:235, Video 16:235 pass-through
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Messages In This Thread
RE: New Era: VAAPI with EGL interoperation - by briancl - 2015-10-08, 23:27
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