Please try holding down Right click while scrolling to change the size and let us know if it works.
Hi, no sorry this doesn't appear to work
May I know which version of Photoshop are you using?
I'm sorry to ask an obvious question, but you do have the text selected? I have just tried everything I could think of, and was unable to stop my mouse wheel controlling all the parameters you mention. That included turning off GPU acceleration, which is needed for those right click and drag operations. I also uncheck all the zoom options in Preferences > Tools (and restarted Photoshop) and the only thing that made a difference was Animated Zoom, which made mouse wheel adjustments a bit jerky.
So I am stumped. Could it be an operation issue? I wondered if you could set the lines scrolled to zero, but as you can see below, it would not go below 1. If you work it out yourself, please come let us know what was happening.
Okay, so I am confused as well.
I have used the scroll wheel to adjust the size of tools for years and now it no longer works. It does work in Lightroom, but not Photoshop. I have tried dozens of combinations of checkboxes in the Prefe>Tools panel all to no avail.
I am running CC 2017, up to date with the latest release.
Someone at Adobe should tell us if this is design, bug, or what and what we can do as this is a huge impediment to speedy editing.