I can not follow what you wrote so I do not know whatat your Problem is. To Draw straight line the onle key you nee to use is the shift key. Brush tool set color brush size hardness and opacity. Position the brush left click. Hold the Shift key down position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click, position the mouse and left click,??? I do not normally use CC 2015 or CC 2017 here is CC 2017 screen capture. The shift key can als constrain the line tool to 0, 45, 90
I wasn't Asking how to make a Straight Line All it does Is When I go in and create a new Document it works just Fine I can move the mouse around Make Curves. As soon as a Mistake is made, and I hit a Key on my Keyboard (Ctrl+Z) it Breaks and only Does Straight lines, I don't use a Tablet, and All my Troubleshooting steps are above with what I have done to Fix it, I it was late, I apologize it didn't make Sense, I even had someone Proof read it before hand, but i had been talking to them So they got the sense of what I was doing.
I can not follow what you wrote
Same here. It was over complicated and we couldn't see wood for trees. The second post is nearer the mark.
Is this happening with both computers?
Have you found other people with the same problem?
Have you reset Preferences? Started Photoshop with the Shift key held down?
Personally no i haven't found someone with the same issue that i know personally, it's the same issue that is in the video (they are using a tablet in the video) [Unsolved] Photoshop Tablet Straight Lines Problem - YouTube My other PC does it Fine, and works okay, it doesn't have the problem, I put it up there as a test for what I had done. I have Reset Preferences, but i haven't started with the shift key down.
the issue arises when I hit any key on my keyboard, Anyone of 3 keyboards i have in front of me
again a few Troubleshooting things I've done include
-uninstall with Deleting all settings as well as installing old versions of Photoshop
I will Try to opening with the shift key down, and report back any info I get.
Edit: Tried with **** Nothing happened Differently
Video of Exact issue Photoshop Straight Lines - YouTube
Without audio I can not tell what he is doing in that video, He states his problem is with his tablet and your not using one. Is Photoshop randomly drawing line when you lay down dots and then move the cursor around like it looks like he is showing he is getting random left shift clicks?