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So I switched my desktop environment from Unity to GNOME3 in Ubuntu 16.04. I tried using both display managers (lightdm default in Unity, gdm3 as gnome recommendation). However my display seems to be broken. I am attaching a screenshot for clarificationI can't use any of those options

Anwar
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Sudip Bhandari
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  • Your question says you're using 16.04, but you used 14.04 as tag! why? – Anwar May 11 '17 at 06:30
  • @Anwar Because 16.04 tag didn't show up and I don't have enough rep to create a tag :) – Sudip Bhandari May 11 '17 at 06:39
  • Then it was better not to use confusing tag. There must be a browser problem because 16.04 is a created and much used tag [see here](https://askubuntu.com/tags). Anyway, I edited it – Anwar May 11 '17 at 06:41

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The problem is associated with gtk-theme you're using, not with display manager. That theme is incompatible. I suggest using other theme.

To switch to default Adwaita theme, which should work always in GNOME, use this command

gsettings set org.gnome.desktop.interface gtk-theme 'Adwaita'
Anwar
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    Thank you so much... I had just been scratching my head about what could have gone wrong!! – Sudip Bhandari May 11 '17 at 06:41
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    @SudipBhandari Glad it helped. Also note that you can use other compatible theme beside Adwaita. Just change the name or use gnome-tweak-tool etc – Anwar May 11 '17 at 06:42
  • Anwar Since chat requires at least 20 rep which I don't have as of now... I am posting a link to my other problem https://askubuntu.com/questions/912962/cant-seem-to-get-syndameon-working-properly-disable-touchpad-while-typing – Sudip Bhandari May 11 '17 at 07:10
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    @SudipBhandari I checked that question. Unfortunately I'm not experienced with that question – Anwar May 11 '17 at 07:13