Does a qt5 virtual framebuffer exist?
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@SGaist Ok thanks for the response!
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Out of curiosity, why monochrome ?
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@SGaist not my choice :-) Our hardware / business team has price targets they need to meet. I guess they feel that color is too expensive!
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I see...
Depending on your device you should directly work with it like e.g. the Raspberry Pi
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@SGaist yes i plan to do that eventually... i'm just waiting on co-worker to provide me the proper toolchain / deployment mechanism for our custom board. I was hoping to jumpstart my development using the virtual framebuffer capabilities. Maybe i should just do my app in QT4? Is there any benefit to QT5 that I'd be missing... as you can imagine the GUI will be a very simple monochrome display with no touch screen or mouse. The end product is a desk phone so the input is just buttons.
Thanks for your time! I appreciate it.
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To jumpstart you can indeed go with Qt 4 and the virtual frame buffer. Be aware however that Qt 4 will only see one more patch release (AFAIK) but no more minor release. Once you have your board, you can always go on Qt 5
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@SGaist Do you have any idea why they dropped support for the virtual framebuffer in Qt5?
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No, I don't know that. You can try asking in the #qt IRC channel on freenode or the interest mailing list
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sir,i am using qt5 version with beaglebone black and 7'' inch lcd screen to display through hdmi cable and i am project using following command
sudo QT_QPA_PLATFORM=linuxfb ./BBB-Qtbut i get following errror,
Unable to figure out framebuffer device. Specify it manually.
linuxfb: Failed to initialize screen
Segmentation faultcan you please help me
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@neha9 I had the same problem:
Failed to mmap framebuffer (Invalid argument)
linuxfb: Failed to initialize screen
Segmentation faultHave you solved it yet?