is this a corrupt config.txt file? - Raspberry Pi Forums

i've tried set gpu_mem=16 in config.txt on headless 256mb model change doesn't seem stick; top reveals kib mem: 189100 total higher when using start.elf files pre-upgrade of os.

i'm running raspbian, upgraded couple days ago.

when try change config.txt

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sudo nano /boot/config.txt

, reboot, end of config.txt file when system , running:

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# uncomment c^l0��^@^@��l^p��^p^@��`0��^l^@��^@ ��l���^w���`^@��d^p��^@ ��^s���^@ �$ �^a��@@��@@d�@0��^c^@u�^t`   

, gpu_mem=16 missing.

i having same problem. config.txt file being corrupted after 1024 bytes of text.
have got gpu_mem=16 working deleting of comments, keep config.txt file size below 1024 bytes (1k).
looks there bug here somewhere, corrupting config.txt file after 1024 bytes of text, appears work ok long config.txt file less 1024 bytes.

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