I can't read measurements because the toolbar is pointlessly small.

[morphinapg]

I have a 4K monitor, and I'm not using any DPI scaling. There's SO much more room for this toolbar to expand, but it's not expanding. I have no idea why photoshop is only using less than a quarter of my screen width to draw this toolbar. I see no way to resize it manually, either. I can detatch the toolbar, but it stays just as small as it is here

Windows 11, Photoshop Version: 23.3.2 20220503.r.458 d8a9c44 x64

I'm fairly sure I wasn't having this issue a couple months ago.

[davescm]

That is the options bar and menus not the toolbar but, regardless of that, the scaling of Photoshop's user interface on Windows 10 and 11 is picked up directly from the scaling value in Windows settings. You might want to check that. If you alter it you will need to close and restart Photoshop.

Dave

[morphinapg]

As I said, I'm not using any DPI scaling. I meant that both in terms of Windows and in terms of the interface settings in Photoshop itself.

I just don't understand why this options bar doesn't automatically expand when I have plenty of screen space for it to do so.

[Lumigraphics]

What he is saying is that you may need to use UI scaling.

[morphinapg]

Shouldn't it look correct at the default scaling? And no, I'm not going to change the scaling of my entire windows experience to make Photoshop work. The UI Scaling options within photoshop itself don't even do anything anymore, since Photoshop follows Windows scaling now.

[Lumigraphics]

Beats me, works great on the Mac.

Please read this

https://helpx.adobe.com/photoshop/kb/hidpi-retina.html

[Jeff Arola]

What is your screen resolution?

If you right click on your desktop, click Display Settings and under Scale & Layout the Scale is set to 100%?

[morphinapg]

Like I said in my post, it's 4K (3840x2160) and yes it's set to 100% scaling

[Jeff Arola · Accepted solution]

In photoshop you can go to Edit>Preferences>Interface and adjust the UI Font Size.

(photoshop needs to be restarted after each change)

[morphinapg]

It turns out setting font size to small fixed it. It was on Medium. 

Adobe, please allow the options bar to expand if the text is larger and there's plenty of screen space. 

[Trevor.Dennis]

You do realise that setting the UI to 200% only affects the UI and your images will still display the same?  There's not really any down side that I can think of.  If you have a reason for not using the 200% scaling, could you explain, and we can maybe help work around it.

[EDIT] Incidentally, you need to show us a full size screen shot of your entire workspace for it to be in any way meaningful, and helpful.

[morphinapg]

I had tried using UI scaling options in Photoshop when I got my 4K monitor, but they did nothing. I don't want to scale the entire UI of Windows itself, as most apps don't need bigger scaling on the 42" screen I'm using. I didn't really need UI scaling in photoshop either, I just thought it would make it so I could sit back a little further while using it. So I reset those options to their defaults. Which again, didn't change anything in the UI itself because those options appear to be nonfunctional, since Photoshop appears to only follow Windows built in UI scaling now.

It turns out I must have increased the font size option from small to medium, which caused this text clipping issue apparently. Setting it to small fixed it. But it makes no sense why the options bar wouldn't expand to make use of the extra screen space. Photoshop must be making use of some extremely old code if it can't adapt well to wider resolution screens.