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Thread: Please explain gamma settings

  1. #1
    Raw Wave treetop777's Avatar
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    Please explain gamma settings

    Quote Originally Posted by vladcarpc View Post
    Hi,

    I have a Lilliput 8" Wide Model 889GL-80NP/C/T, using RR and it's built in gamma control.

    At night, the brightness of the screen is still too high.

    It is not secure. People from other cars or pedestrians can notice the screen very easily at night.

    So, what settings are you using in your gamma configuration? Or what else are you configuring or doing to reduce screen brightness at night?

    PS: At day normal or high brightness is important.

    Thank you
    Above is a question from another member that didn't get any response in the monitor forum which i'm also interested in. I'm posting it here in hopes of getting a better response.

    Basically, the monitor (8" lilliput 889GL) is too bright at night even with the normal "default" reduced gamma. Would like to know how gamma works and what settings to change to get it darker.

    I (we) know there's a gamma setting in config; just don't know how to accomplish the above.

    Thanks

  2. #2
    The Curator
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    To make it darker you want to make the colorls farther away from zero on the negitive side. default is -50, so try -75 ect..

    what this does is changes the brightness of each color up or down, although many argue that dimming by using gamma doesn't do as good job as a reduced backlight. The reduced backlight is a much better resulting dimmed picture, but w/o the know-how, time, effort...ect the gamma route is just easier to use, it just doesn't give as good results...
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  3. #3
    Raw Wave treetop777's Avatar
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    Quote Originally Posted by Blue ZX3 View Post
    To make it darker you want to make the colorls farther away from zero on the negitive side. default is -50, so try -75 ect..

    what this does is changes the brightness of each color up or down, although many argue that dimming by using gamma doesn't do as good job as a reduced backlight. The reduced backlight is a much better resulting dimmed picture, but w/o the know-how, time, effort...ect the gamma route is just easier to use, it just doesn't give as good results...
    Thanks ZX3, another question if i may: which take presedence, the gamma specified in general.ini or the one in your config? Do they interact in any way?

  4. #4
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    The skins gamma settings (from the last skin loaded) should take over if they exist, otherwise the config ones are used.
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  5. #5
    Raw Wave treetop777's Avatar
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    Thanks. At -80 (the max you can go?) it dimms considerably, much better than before.

    Now i got to keep searching to see if i can find how to make it come out of dimm when the screen is touched (to make changes in playlists and such) then return to dimm after some idle time..

  6. #6
    The Curator
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    Could be done with the idle skin command only if the gamma setting were able be be set/changed on-the-fly.

    Unless I'm wrong...
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  7. #7
    One Sharp Cheddar ThunderStick's Avatar
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    IDL,30 GAMMA

    wouldnt this work
    Idle 30 seconds then gamma
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  8. #8
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    IF the settings in the skin are messing with the settings in the control. What is the best way to fix this? What is the best way to remove the settings in the skin general file?

  9. #9
    Raw Wave treetop777's Avatar
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    Quote Originally Posted by WassonA View Post
    IF the settings in the skin are messing with the settings in the control. What is the best way to fix this? What is the best way to remove the settings in the skin general file?
    Somebody correct me if i'm wrong but i think if you set these all to 0, the settings in config will take over.
    GammaDayRed=0
    GammaDayGreen=0
    GammaDayBlue=0
    GammaNightRed=0
    GammaNightGreen=0
    GammaNightBlue=0

  10. #10
    MGD
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    This is my General.ini

    OriginalWidth=800
    OriginalHeight=600
    ShowWidth=800
    ShowHeight=480
    XPosition=0
    YPosition=0

    All the rest for the gamma is in rr.ini

    [Gamma]
    gammamode=2
    gpsgammamodeoffset=0
    gammaday=0:0:0
    gammanight=-50:-50:-50
    gammadaytime=6:00
    gammanighttime=18:00
    autogammamode=0
    autoskinmode=2

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