https://community.nxp.com/t5/i-MX-Graphics/i-MX6-Color-Correction/m-p/1437695#M287 <P>Hi everyone,</P><P>currently I'm working on a custom i.MX6DL Board wih Mainline Linux-Kernel.<BR />But the display attached to it does need some color-correctien (red seems more like orange).<BR />The Display is a small RGB-Display, so no LDB is used.</P><P>I know that the IPU is capable of doing that, but it seems, that the Mainline-Kernel doesn't support it. So I want to switch to the Community-Kernel, but I'm having some problems.<BR />I managed to boot the Community-Kernel, but it doesn't show anything on the display.</P><P>Also it's lacking the /dev/fb* Devices and /dev/dri/card1</P><P>I checked it on SabreSD, too. Mainline Kernel shows Tux and a Command-Line via HDMI, Community-Kernel doesn't, although there are four /dev/fb* (but also no /dev/dri/card1).</P><P>I know it must be a Devicetree-Issue, but I'm not sure where to get the right hints for this.</P><P>Are there any Devicetree snippets available out there?<BR />Do you need more details?</P><P>Greetings<BR />Steffen</P><P>&nbsp;</P> Fri, 01 Apr 2022 13:28:20 GMT steffendoster 2022-04-01T13:28:20Z https://community.nxp.com/t5/i-MX-Graphics/i-MX6-Color-Correction/m-p/1437695#M287 <P>Hi everyone,</P><P>currently I'm working on a custom i.MX6DL Board wih Mainline Linux-Kernel.<BR />But the display attached to it does need some color-correctien (red seems more like orange).<BR />The Display is a small RGB-Display, so no LDB is used.</P><P>I know that the IPU is capable of doing that, but it seems, that the Mainline-Kernel doesn't support it. So I want to switch to the Community-Kernel, but I'm having some problems.<BR />I managed to boot the Community-Kernel, but it doesn't show anything on the display.</P><P>Also it's lacking the /dev/fb* Devices and /dev/dri/card1</P><P>I checked it on SabreSD, too. Mainline Kernel shows Tux and a Command-Line via HDMI, Community-Kernel doesn't, although there are four /dev/fb* (but also no /dev/dri/card1).</P><P>I know it must be a Devicetree-Issue, but I'm not sure where to get the right hints for this.</P><P>Are there any Devicetree snippets available out there?<BR />Do you need more details?</P><P>Greetings<BR />Steffen</P><P>&nbsp;</P> Fri, 01 Apr 2022 13:28:20 GMT https://community.nxp.com/t5/i-MX-Graphics/i-MX6-Color-Correction/m-p/1437695#M287 steffendoster 2022-04-01T13:28:20Z