picamera project troubles - Raspberry Pi Forums

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i've been working on couple days , stumped. have literally read thru on 5 guides on getting "very simple" picamera work. i'm new linux well. have 2 problems camera.

first getting preview bash: ** pi@hydrocam ~ $ raspistill -hf -vf -p ** gives me "failed open vchiq instance". looked , said add user video group. however, prior working (well except problem 2). why happen after reboot if working fine before? do fix it?

second python shell running simple script capture image desktop. when click on file says there no data in image. when try capture picture bash hangs on preview screen until ^c, after says process aborted , doesn't save picture.

thank in advance , help!

the first getting preview bash: ** pi@hydrocam ~ $ raspistill -hf -vf -p ** gives me "failed open vchiq instance". looked , said add user video group. however, prior working (well except problem 2). why happen after reboot if working fine before? do fix it?
not clear you're saying here...
1. error message
2. add pi group video
3. prior working... (what 'this')
not make sense me since started off saying have problem...
, reboot come in?
the second python shell running simple script capture image desktop. when click on file says there no data in image.
please post script. if script calls 'raspistill' try adding '-v' command line. produce more verbose output.


raspberrypi



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