Skip to main content
CTapp.1
Senior III
May 26, 2025
Solved

STLinkUpgrade utility text is too small to read

  • May 26, 2025
  • 3 replies
  • 345 views

The font size used for the GUI in the STLinkUpgrade utility so small it is virtually unreadable on the external 32" 4K monitor that I use with my laptop. The following shows the text size relative to code within the IDE:

CTapp1_0-1748251211537.png

It's possible that this is as a result of using a 4K screen, as it looks ok when running on the laptop screen:

CTapp1_1-1748251544211.png

The size stays as above if I then close the lid, even though the external screen then switches back to 4K.

Best answer by CTapp.1

It looks like setting the following properties on java.exe in STM32CubeIDE\plugins\com.st.stm32cube.ide.jre...\jre\bin helps:

CTapp1_1-1748274677672.png

Though the UI text is a lot fuzzier than the window title (the difference doesn't show that well in the above).

CTapp1_0-1748274581969.png

Still, I can now see what I'm doing ;)

3 replies

Peter BENSCH
Technical Moderator
May 26, 2025

Which operating system are you using?

At least with Windows, this is not necessarily a problem with the application, but actually with Windows, which unfortunately has to be explicitly taught to use HR mode for every application.

Regards
/Peter

CTapp.1
CTapp.1Author
Senior III
May 26, 2025

This is Windows. How do I "teach it" what resolution to use? I don't recall it being a problem (with this application) in the past - though the "Start menu" is sometimes sharp and sometimes fuzzy (as if a low-resolution version has been upscaled badly).

I'm used to working with MacOS, so I've not run into this before!

All posts are made in a personal capacityMISRA C++ ChairMISRA C WG MemberDirector The MISRA Consortium Limited (TMCL)
CTapp.1
CTapp.1AuthorBest answer
Senior III
May 26, 2025

It looks like setting the following properties on java.exe in STM32CubeIDE\plugins\com.st.stm32cube.ide.jre...\jre\bin helps:

CTapp1_1-1748274677672.png

Though the UI text is a lot fuzzier than the window title (the difference doesn't show that well in the above).

CTapp1_0-1748274581969.png

Still, I can now see what I'm doing ;)

All posts are made in a personal capacityMISRA C++ ChairMISRA C WG MemberDirector The MISRA Consortium Limited (TMCL)