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Posted

I have a Forlinx OKA40i-C development board that has an arm R40 as its Soc.

I use the latest Linux kernel (5.14.2  that contains "lima" for mali400 GPU ) and the latest Debian (11 aka bullseye that contains mesa project).

but when I want to use GPU, like run the "kmscube" command  I encounter this error  

DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory

 

if you know anybody that can help me with this problem, please please introduce him/her to me.

ps. I checked the #linux-sunxi channel that you suggested, nobody help me.

I desperately need your help.

Posted

Moved into new (off)topic since R40 has nothing to do with H3 and Armbian does not officially support any board with this SoC.

Posted
8 hours ago, vahidrezaei1371 said:

I encounter this error  

DRM_IOCTL_MODE_CREATE_DUMB failed: Cannot allocate memory

Make sure you have big enough CMA region, either via kernel config or using kernel argument. I suggest 128 MiB, but if it still doesn't work, try bigger.

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