Lightroom menu bar too large

[Glenn Altern]

I have recently updated my laptop to a Dell XPS13 with a 4K monitor, and the Dell 2410 monitors I use for photo editing have 1920 x 1080 resolution. I am connecting to the monitors through a Dell Thunderbolt TB16 docking station - both display port and HDMI outputs have the same problem.

Lightroom renders the top-level menu and menus accessed from that menu in a huge font. ( screen shot attached ).

I realise that font scaling needs to be adjusted between monitors of different resolutions. This is not a general problem, but one limited to specific parts of the lightroom UI - Photoshop is fine, and as the screenshot shows, the rest of the Lightroom UI is fine too.

I can't show the menus, but the file menu items are of a similar size. However, dialogs accessed from menus such as export show a large header font, and correct detail font too.

Any ideas ?

[mawg64]

I've had this problem off and on with the scaling of Adobe programs.  Recently I upgraded to LR CC, after the horror of waiting for my catalogs upgraded, I had a HUGE menubar.  I have tried the various fixes with no luck.  I went back to an old fix and VIOLA!  Everything is good.  The fix?  Use a manifest file to link to the exe.  Google: manifest file for adobe Dan Antonielli Follow his steps.  Dont know the reason for the magic but it has fixed scaling problems with both programs.  I have tried to post the file here but it gets rejected.

[stevepbennett]

Thanks Mawg64. Your solution is the cleanest by far and worked for me.
Please move to demigod status. 8^)
For info, I had the issue whilst using a new Microsoft Surface Pro 6 - My second monitor is 1920x1080 resolution. All other apps I use resize the menu correctly. Lightroom 6 refused and the main menus were huge. Your fix nailed it for me. I now have a fully functioning "as I like it" Lightroom again.
Many thanks

[brianb44910418]

My laptop is connected to an external monitor and I was having the same issue. Parts of the preference menus were being cut-off and unreadable. I tried the recommend solution and it did not work. After wasting an hour I discovered the solution had to do with display settings. Settings-System-Display. I made the external monitor my main display. After restarting Lightroom, the issue was resolved.

[Peter5484]

Same problem continues in 2020 on a Dell XPS. Note I didn't need to set to Win8 compatibility; just selected "System (Enhanced)" in the Change High DPI settings. Can't believe this still needs to be done.

EDIT: Just saw that Dan Antonelli now suggests the same method. Step by step is here: https://danantonielli.com/app-scaling-on-high-dpi-displays-fix-2019/

[defaultbbtoef3yi4vl]

Brilliant Brian - worked as soon as I restarted - thanks mate

[DebKeir]

Thanks - this fix worked for me.  My new XPS15 with HP external monitor.