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Emacs delete-other-windows causes some lines to be hidden on widescreen monitor with hardware rendering #11652

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opened 2026-01-31 02:53:42 +00:00 by claunia · 4 comments
claunia commented 2026-01-31 02:53:42 +00:00
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Originally created by @vmiheer on GitHub (Dec 1, 2020).

Environment

Windows build number: Microsoft Windows [Version 10.0.19042.630]
Windows Terminal version (if applicable): 1.5.3142.0
Emacs version: GNU Emacs 26.3
Ubuntu wsl: Ubuntu 20.04.1 LTS
Display resolution: 3440x1440
nvidia driver: 457.30 RTX 2060 super

Steps to reproduce

Fail case

  1. Maximize terminal, open wsl, start emacs. Press (C-x 1) (Ctrl+x followed by 1).
  2. Notice some lines are hidden
  3. Press C+g (Ctrl+g) to force repaint of emacs.
  4. Lines appear back

Pass case 1

  1. Reduce window size so that window is around 1440x1440.
  2. Follow steps 1 and 2 and observe there are no hidden lines

Pass case 2

  1. Enable software rendering in terminal settings: "experimental.rendering.software": true.
  2. Follow steps 1 and 2 and observe there are no hidden lines

Expected behavior

Even when terminal is fullscreen there shouldn't be hidden lines

Actual behavior

Some lines are hidden.

Screenshots

Pass:

pass

Fail:

fail

Originally created by @vmiheer on GitHub (Dec 1, 2020). # Environment ```none Windows build number: Microsoft Windows [Version 10.0.19042.630] Windows Terminal version (if applicable): 1.5.3142.0 Emacs version: GNU Emacs 26.3 Ubuntu wsl: Ubuntu 20.04.1 LTS Display resolution: 3440x1440 nvidia driver: 457.30 RTX 2060 super ``` # Steps to reproduce ## Fail case 1. Maximize terminal, open wsl, start emacs. Press (C-x 1) (Ctrl+x followed by 1). 2. Notice some lines are hidden 3. Press C+g (Ctrl+g) to force repaint of emacs. 4. Lines appear back ## Pass case 1 1. Reduce window size so that window is around 1440x1440. 2. Follow steps 1 and 2 and observe there are no hidden lines ## Pass case 2 1. Enable software rendering in terminal settings: `"experimental.rendering.software": true`. 2. Follow steps 1 and 2 and observe there are no hidden lines # Expected behavior Even when terminal is fullscreen there shouldn't be hidden lines # Actual behavior Some lines are hidden. # Screenshots ## Pass: ![pass](https://user-images.githubusercontent.com/535650/100788861-ea2e8c80-33d2-11eb-85f8-5c072e6b44de.gif) ## Fail: ![fail](https://user-images.githubusercontent.com/535650/100788864-eac72300-33d2-11eb-9a07-3189ed2b9b6f.gif)
claunia added the Resolution-Duplicate label 2026-01-31 02:53:42 +00:00
claunia commented 2026-01-31 02:53:42 +00:00
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@zadjii-msft commented on GitHub (Dec 2, 2020):

Well that's sure bizarre. This isn't the first bug report we've had this month about the RTX 20* cards. See also #8371.

Makes one think that there's a bug in the driver, rather than the Terminal...

(I'm just musing, I have no idea what's causing this or how to debug. @miniksa might have an idea.)

@zadjii-msft commented on GitHub (Dec 2, 2020): Well that's sure bizarre. This isn't the first bug report we've had this month about the RTX 20* cards. See also #8371. Makes one think that there's a bug in the driver, rather than the Terminal... (I'm just musing, I have no idea what's causing this or how to debug. @miniksa might have an idea.)
claunia commented 2026-01-31 02:53:43 +00:00
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@vmiheer commented on GitHub (Dec 2, 2020):

Well given that software rendering is working, might be best to push to nvidia. And add this as test in WHQL 😂.

@vmiheer commented on GitHub (Dec 2, 2020): Well given that software rendering is working, might be best to push to nvidia. And add this as test in WHQL 😂.
claunia commented 2026-01-31 02:53:43 +00:00
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@DHowett commented on GitHub (Dec 3, 2020):

How strange! I'm gonna mark this one a /dupe of #8371 because of the similar invalidation symptoms. That's quite strange.

@DHowett commented on GitHub (Dec 3, 2020): How strange! I'm gonna mark this one a /dupe of #8371 because of the similar invalidation symptoms. That's quite strange.
claunia commented 2026-01-31 02:53:43 +00:00
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@ghost commented on GitHub (Dec 3, 2020):

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!

@ghost commented on GitHub (Dec 3, 2020): Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!
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Reference: starred/terminal#11652
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