You will have to use ffmpeg to convert the video file since the free resolve doesn't work with certain linux codecs you would have to buy studio for that.
If you use: ffmpeg -i input.mp4 -c:v dnxhd -profile:v dnxhr_hq -pix_fmt yuv422p -c:a pcm_s16le -f mov output.mov
That should convert your .mp4 recording to .mov and it will work.