vahidrezaei1371 0 Posted September 9 Share Posted September 9 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. 0 Quote Link to post Share on other sites More sharing options...
Werner 425 Posted September 9 Share Posted September 9 Moved into new (off)topic since R40 has nothing to do with H3 and Armbian does not officially support any board with this SoC. 0 Quote Link to post Share on other sites More sharing options...
jernej 226 Posted September 9 Share Posted September 9 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. 0 Quote Link to post Share on other sites More sharing options...
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