I noticed a thing that I cannot explain on my GDS-1052-U scope: while the probe and the oscilloscope are set on 1x the noise from the LM317 power supply is about 5-6mV pp and while the probe and the oscilloscope are set on 10x, the noise from the same power supply (a LM317 power supply with PNP pass transistor) is about 50-60mVpp (see the images below, in the first image the probe and scope are set on 1x and in the second image the probe and the scope are set on 10x). Is that normal ? I tried to use another probe but it does not change the amplitude of the noise.
1x probe: https://imgur.com/tV0kUqD
10x probe: https://imgur.com/nyeucoi