topic Re: Lines are not highlighting/glowing blue when hovering or selected. in AutoCAD LT Forum

Lines are not highlighting/glowing blue when hovering or selected.

JoeGXWXU — Tue, 07 Feb 2023 08:59:44 GMT

Please help.

I have recently reformatted my windows laptop. Since reinstalling Autocad LT I have been having issues with hovering and selecting in model space. When I hover/select a line it no longer glows blue. When I hover, only the ends of the lines glow. When I select the line, only the nodes and grips highlight. I have attached an image to show what I mean.

The only info online I have found relates to the SE

LECTIONEFFECT & PRESELECTIONEFFECT commands. This is not the problem I am having, but I cannot find anyone online who has had the same problem!

If anyone has any ideas, please let me know. I have already tried uninstalling and reinstalling Autocad, but that didn't work...

Re: Lines are not highlighting/glowing blue when hovering or selected.

JoeGXWXU — Tue, 07 Feb 2023 09:26:02 GMT

I have fixed it! It turns out that Autocad was using the incorrect graphics card... I changed the settings to make sure it always uses the high performance graphics card and voila... problem solved.

Hope this helps someone else

Re: Lines are not highlighting/glowing blue when hovering or selected.

jaakko_hakomaki9FBLZ — Thu, 04 May 2023 10:17:54 GMT

i have same problem but that graphics card setting didnt help... This is really annoying.

Re: Lines are not highlighting/glowing blue when hovering or selected.

pendean — Thu, 04 May 2023 12:30:19 GMT

@jaakko_hakomaki9FBLZ share with us screenshots of your ABOUT and GRAPHICSCONFIG command pop-ups, as well as information about your Operating system version please.

If you've never done screenshots before, explore this link Use snipping tool to capture screenshots - Windows Help

Re: Lines are not highlighting/glowing blue when hovering or selected.

jaakko_hakomaki9FBLZ — Fri, 05 May 2023 04:36:04 GMT

@pendean

My computer is Lenovo thinkbook 14 gen4

Re: Lines are not highlighting/glowing blue when hovering or selected.

JoeGXWXU — Fri, 05 May 2023 07:07:33 GMT

For me, the setting I had to change was in my computer setting

Re: Lines are not highlighting/glowing blue when hovering or selected.

jaakko_hakomaki9FBLZ — Fri, 05 May 2023 07:10:39 GMT

@JoeGXWXU

Yes i have also done that. Didnt help

Re: Lines are not highlighting/glowing blue when hovering or selected.

pendean — Fri, 05 May 2023 12:00:13 GMT

Start here https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/AutoCAD-crashing-with-Intel-Iris-Xe-graphics.html

Then... Have you installed the 2022.1.3 / 2023.1.3 2024.0.1 Update yet (you forgot to share your ABOUT command pop-up)? ABOUT command will confirm what you have installed. If not, get it from your Autodesk Account Page here https://manage.autodesk.com/cep/#products-services/updates
Restart your PC afterwards.

If that did not help... Set GFXDX12 variable to 0 (that's a zero) then restart your AutoCAD variant: reverting to DirectX11 fixes similar problems for most users.

Also consider turning off LINESMOOTHING and LINEFADING variables.

If still no relief then start GRAPHICSCONFIG command and change the 2D Display Settings pulldown from "advanced mode" to one of the other choices.

If all else fails, then turn off Hardware Acceleration as a last resort.

Re: Lines are not highlighting/glowing blue when hovering or selected.

jaakko_hakomaki9FBLZ — Mon, 08 May 2023 04:21:37 GMT

@pendean

Any of those didnt help me...

I have the latest version (Autocad LT 2024.0.1)

What is GFXDX12? How do I change that?

Re: Lines are not highlighting/glowing blue when hovering or selected.

pendean — Mon, 08 May 2023 12:20:13 GMT

@jaakko_hakomaki9FBLZ turning off GFXDX12 means https://help.autodesk.com/view/ACD/2024/ENU/?caas=caas/sfdcarticles/sfdcarticles/How-to-make-AutoCAD-run-with-DirectX-9.html#:~:text=How%20to%20use%20a%20previous%20DirectX%20version%20in%20AutoCAD%20Products

You just type it at the commandline to change it's setting: AutoCAD is 40-ish years old, you still have to TYPE commands at the commandline when you cannot find them as a button or much else.

HTH

Re: Lines are not highlighting/glowing blue when hovering or selected.

jaakko_hakomaki9FBLZ — Tue, 09 May 2023 05:30:46 GMT

@pendean

Thank you!! It's working now!

Re: Lines are not highlighting/glowing blue when hovering or selected.

disciplinaplus — Wed, 29 May 2024 14:59:17 GMT

Hello!

I found the solution (Autocad LT 2025.0.1) by typing SELECTIONEFFECT at the commandline, setting variable to 0.

Re: Lines are not highlighting/glowing blue when hovering or selected.

ayush05m — Thu, 30 May 2024 03:33:39 GMT

Indeed it can solve the selection problem but still persists the hovering issue

Re: Lines are not highlighting/glowing blue when hovering or selected.

j_denheijer — Fri, 07 Jun 2024 09:30:56 GMT

This works perfectly in our VDI 👍

Re: Lines are not highlighting/glowing blue when hovering or selected.

danish_haider — Wed, 19 Jun 2024 07:02:56 GMT

Thx... It worked in LT 2024 also....bt we have to put the value to 1 instead of 0

Re: Lines are not highlighting/glowing blue when hovering or selected.

chadRQ7B8 — Thu, 12 Dec 2024 15:20:05 GMT

Ok, so if none of the above worked for you (which was my case), I found an option under the SELECTION tab in options that worked for me. Make sure these two checkboxes are checked and your objects should highlight when you hover the cursor over them. Hope this helps.

Re: Lines are not highlighting/glowing blue when hovering or selected.

nikhilCJE22 — Tue, 04 Nov 2025 05:00:30 GMT

I tried this command - Selectionpreview - set it to 3.

Hope that helps!

Re: Lines are not highlighting/glowing blue when hovering or selected.

nikhilCJE22 — Tue, 04 Nov 2025 05:03:02 GMT

Try SELECTIONPREVIEW and set it to 3 & HIGHLIGHT to 1. Hope it helps