Hi Guys and Gals ) How is it possible to download my raw files from my D750 Nikon camera? Is it possible?

I'd think that some action is being done to cause that message. It really has some form of file copy or move in progress. Some access is locking it. Might look at top or htop. top is pretty easy to kill a process if you open with sudo. k pid.

https://daviesmediadesign.com/open-raw-images-in-gimp/
https://howtogimp.com/raw-photos-in-gimp/

Don't know what jefro is getting at, at all!

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The issue is that udev sees the camera and mounts it as a mass storage device. Then shotwell or whatever sees it as already mounted. I used to hack the rules to not mount my camera(s), but now I just pull the card out and use a card reader. Problem solved.

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With all due respect, I would not do it that way, syg00. All one needs is a CF Card Reader and GIMP. Problem solved!

????. Isn't that what I said.

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You should copy the files to your computer first.

Make sure you don't have any "automatic actions when inserting device" configured.

How is it connected to your PC? How did you try and what? (what OS, what software, what did you make exactly ....)
http://www.catb.org/~esr/faqs/smart-...html#beprecise

If your camera is seen as a block device, just mount it & use a file manager, otherwise you may need to install software such as gthumb - or just take the card out & use a card reader.

Hi Guys ! Thank you all for your help! I successfully downloaded the files from the camera. It was a very slow process. I am wanting help to fix the card reader issue. When I installed the reader with the card in... the whole system locked down. Had to shut down and reboot to get it going again. Did this three times and each time it locked up. What's up? Any suggestions?

One more issue... How do I access the Russian keyboard and move back and forth to the English keyboard? The second part of the question is probably easy to figure out... but in case it isn't send me some pointers. Thank you in advance! Gary

No idea.
First of all, I have a very old camera with a CF card, and it's effing slow to transfer files to the computer.
The system locking up is another matter. It shouldn't really do anything without your say-so.
At what point does the system freeze, when you connect the camera or when you launch an application to deal with the files?
Have you tried waiting it out? 5, 10 minutes?
You should look at some logs that could provide info.

Is your system set up to launch some application when you connect the camera? Did you disable that?
What exactly did you install? "The card reader", what is that?

Different topic, new thread.

Yes, it was the card reader. Everything was find, put the card reader in and everything froze. Waited one time 9 minutes and then shut it down. The other two times... waited no more then a minute, thinking also maybe something was processing.

what kind of card reader is it?
Do you have any related info in /var/log ?

Maybe I misunderstood... The camera has a USB port? If yes, can you plug it straight into USB on your computer then copy photos?

the D750 has built-in wifi (and usb too), and also you can add external wireless transmitter, so there are several different ways to connect the camera to the pc.
Additionally you can use a card reader instead of the camera.