Tried dd if=/dev/sda1 of=/dev/null and instant failure. Looks like it is a power issue. Amusingly, the omnia can’t even provide 5 volts of power, only 4.7-4.8. once it reaches 0.5 amps it fails.
Laptop on the other hand does 5.1.
I purchased a Y cable to use the power from the other port as well. I have a weird feeling it won’t help though. I didn’t have this problem before a recent update though. Probably some kernel regression.