Hello free2k ,
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Please see if you can use the 2X RDP Client* that shows at the following link:
Also, you might want to ask the openelec forums:
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I use one of these with OpenELEC on a Raspberry Pi and it "just works" without any configuration, but you have to use the included USB receiver.
Using Kodi on top of Mythbuntu, I didn't have much luck getting the remote to work using the built in CIR device. I have played with some other remotes and have gotten the CIR to at least see them, but they don't work perfectly. It's all about keytables and some other configuration files. I was messing with this over a month ago, but got sidetracked on some other things. I was able to get the NUC's CIR port to see a uverse remote and a Hauppauge remote to some extent.
I had experience with LIRC many years ago and got thrown for a loop when I finally figured out that it is now sort of built into the Linux kernel. After that, I started finally figuring out how it works with OpenELEC, but dropped the project. I'm sorry, I can't be of much help right now, but I plan to get back on it soon.
EDIT: Oops, forgot to add link to remote I was talking about.
I like this remote a lot. It has very good range.
I've tried everything from RC6 remotes to bluetooth keyboards on the NUCs and all work well. My personal favorite so far is this little guy: http://www.amazon.com/gp/product/B014R8EAPG?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00
It's one part simple remote, one part air mouse, and one part keyboard. It's a great solution. It does use its own receiver, but it's tiny.
I've got one of these too. It works really well, but it could stand a key remap or two. It's great for typing of course and the mouse pad is useful. I think it's blue-tooth, but the range is really good. It works without changing anything on a Raspberry Pi, but like I said, the "back" key could be made a bit more convenient than having to hit Escape.
The receiver in the NUC seems to be technically quite good as it can be made to work with practically any kind of remote. That's quite an accomplishment since there are so many different protocols, code lengths, frequencies etc.