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It would be neat if there were userspace Miracast framebuffers. Could have a larger number of information displays around and just send images to them occasiona
by joshu 4y ago
It would be neat if there were userspace Miracast framebuffers. Could have a larger number of information displays around and just send images to them occasionally without having to have run X for each, or whatever.
- vorpalhex 4y agoEspecially with the flood of mediocre but very cheap and thin "portable" displays that can be powered over USB.
- joshu 4y agoYes, that would be lovely.
- stragies 4y agoIf I understand your goal correctly, would EVDI (Extensible Virtual Display Interface) not be a possibility for you? EVDI allows to create "virtual heads", that you could then conceivably cast to external displays via `miraclecast`, VNC, etc. It was originally created to support some ancient USB graphics card, but can be used independently off any specific hardware. https://github.com/DisplayLink/evdi https://github.com/DisplayLink/evdi
- joshu 4y agoThat's a kernel module. Why should I need that? I just want to tell some network device to display a PNG or whatever.
- stragies 4y agoTo simulate a graphics_card/virtual_head? That gives you the full possibilities of your desktop environment to arrange surfaces in relation to each-other, and place content. Now, true, if you only need to "beam" static images somewhere, there are other options. On any recent distribution, `evdi` should be available through the package manager, even Debian has `evdi-dkms`. And your distribution takes care of signing the module, so that you don't have to disable SecureBoot. (Just need to uncomment the line to enable the module-signing helper.)
- joshu 4y agoNo, that is not what I am saying.