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graugans / meta-udoo

:heartpulse: openembedded meta layer for the UDOO boards
MIT License
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No fb0 on SBCA62 solo #33

Open modjo756 opened 7 years ago

modjo756 commented 7 years ago

Hi, i'm trying to use a scosbcA62 solo with yocto image but i have a problem with frame buffer. I want to use lvds with it but i didn't have fb0 in /dev ? see here the log at boot (you can see line 217 that they have a problem with fb0 --> Error opening /dev/fb0: No such file or directory). I have trying to resolve this but nothing to resolve... if you have an idea!

graugans commented 7 years ago

My problem with Seco SBC A62 is there are the DRAM Settings missing in any official source. The one I do use may not optimal. But this shouldn't conflict with LVDs. Have you checked the manuals if the Solo has all capabilities? In UDOO Neo they use a special chip for HDMI AFAIK... So maybe the Solo is special as well.

modjo756 commented 7 years ago

Yes Graugans, if i boot on emmc (that have the seco original image), this work fine on lvds.

graugans commented 7 years ago

Have you checked the device tree? Maybe there is something different?

modjo756 commented 7 years ago

Yes but nothing that can help for the moment ...

modjo756 commented 7 years ago

In this file there are some config for RAM https://github.com/UDOOboard/uboot-imx/blob/3989280f796a19ef4d0b6aa4a43f9ac53582a72b/board/seco/ddr/mx6_SBC_A62_ram.cfg and here