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Severe memory leak with Desktop Window Manager #3469

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opened 2026-01-30 23:22:02 +00:00 by claunia · 0 comments
claunia commented 2026-01-30 23:22:02 +00:00
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Originally created by @radu-matei on GitHub (Aug 18, 2019).

Environment

Windows build number: Windows [Version 10.0.18963.1000]
Windows Terminal version (if applicable): installed from Store

Any other software?
Ubuntu on WSL2

Steps to reproduce

  • open an Ubuntu tab in the Terminal

  • the memory allocated to the Desktop Window Manager starts growing

  • it grows at a rate of around 1 GB / 10 seconds without stopping

image

  • closing the WSL2 tab and opening another one (PowerShell for example), the issue goes away.
  • using the same WSL2 distro and shell from another terminal app (VS Code, for example), issue is not present.

Just upgraded to 18963, mostly similar setup worked fine for 18950.

EDIT: The issue goes away after turning useAcrylic off.

Originally created by @radu-matei on GitHub (Aug 18, 2019). # Environment ```none Windows build number: Windows [Version 10.0.18963.1000] Windows Terminal version (if applicable): installed from Store Any other software? Ubuntu on WSL2 ``` # Steps to reproduce - open an Ubuntu tab in the Terminal - the memory allocated to the Desktop Window Manager starts growing - it grows at a rate of around 1 GB / 10 seconds without stopping ![image](https://user-images.githubusercontent.com/13103165/63218560-3fa34380-c166-11e9-8836-efb1f8d7b459.png) - closing the WSL2 tab and opening another one (PowerShell for example), the issue goes away. - using the same WSL2 distro and shell from another terminal app (VS Code, for example), issue is not present. Just upgraded to 18963, mostly similar setup worked fine for 18950. EDIT: The issue goes away after turning `useAcrylic` off.
claunia added the Needs-TriageNeeds-Tag-Fix labels 2026-01-30 23:22:02 +00:00
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Reference: starred/terminal#3469
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