[lmyllari]

These should fix the grey blacks and inaccurate colors. There are three ways to configure:

1) GPU scaled limited range output: This is the default setting when connected to a TV. There is no need for any settings - remove xrandr from Autostart.sh to use this.

2) Full range output: This is the default when connected to a computer monitor. This can also be forced with the xrandr setting in Autostart.sh.

Image should look identical between #1 and #2. If the screen supports switching RGB input ranges, both should be signaled automatically - otherwise #2 is used. Leave everything at default and things should work right automatically.

There is another way for better quality:

3) Direct limited range output: This allow for BtB, WtW and avoids banding. Software decoding needs to be used (VA-API output is first clipped and scaled to full range). Configure xbmc for 16-235 output and no hardware decoding. Use xrandr to set "Broadcast RGB" to "Video 16:235 pass-through" (this allows full range output, but tells the screen content is limited range)

So with ur built i can enable va-api, set 16...235 in video settings, erase xandr autostart and should be good, right?

No, don't use the xbmc 16..235 setting with VA-API. It won't work reliably, and you won't gain anything over the option #1 above (VA-API output is always expanded to full range - it can be scaled back to 16..235 but it's already clipped).

If you want untouched 16..235, you have to use software decoding. Otherwise, let the driver and display sort it out (driver chooses 16-235 in most cases and tells the display - most TVs probably default to 16-235 anyway).

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This works!
Only problem is that the XBMC on screen display messes the colors up again. When the on screen display opens (by pressing menu, or pause, etc...) the screen lights up and ~5 seconds after it closes the blacks are too dark again.

But if the on screen display is not used, the colors are fine.

I still have the "xrandr RGB full" line in the startup script.

Many thanks!

Are you using VA-API with the 16..235 option? I had that same problem with it.

Use the configuration below:

1) GPU scaled limited range output: This is the default setting when connected to a TV. There is no need for any settings - remove xrandr from Autostart.sh to use this.

Note that you also need to clear the 16..235 setting from xbmc.

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I have a trouble to make USB Live from this package. It boots into syslinux installation wizard.

I have created the live system on an earlier OE version, and now I just extract the target files from new builds and put them in the .update folder and let it do the update.