Bonjour Nicolas, On Wed, Feb 10, 2021 at 11:11 AM Nicolas Dufresne <nicolas@xxxxxxxxxxxx> wrote: > > Are you sure you aren't just running out of CMA ? This is the only things that > comes to mind at the moment, sorry if it's not that useful. Thanks for the suggestion! No worries, this is such a strange/weird problem, that basically any idea has merit at this point. I tried increasing the CMA area from 256M -> 512M, but there was no impact. The critical framebuffer width still remains the same (=0x900). And everything works fine on a classic i.MX6Quad, it's only the i.MX6QuadPlus that has the problem. I am running i.MX6Quad and i.MX6QuadPlus side-by-side with identical kernels/rootfses. Obviously the devicetree is slightly different. Sven
