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Larger column count with Acrylic enabled causes input lag #1361

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bhatasaka opened this issue Jun 21, 2019 · 3 comments
Closed

Larger column count with Acrylic enabled causes input lag #1361

bhatasaka opened this issue Jun 21, 2019 · 3 comments
Labels
Area-Performance Performance-related issue Issue-Bug It either shouldn't be doing this or needs an investigation. Product-Terminal The new Windows Terminal. Resolution-Duplicate There's another issue on the tracker that's pretty much the same thing.

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@bhatasaka
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Environment

Windows build number:[Version 10.0.18922.1000]
Windows Terminal version: 0.0.1.0 (Commit 66cb7c4b 6/20/2019 12:20:49 PM)
Built with VS 2019 (latest version as of June 20, 2019)

Dell Inspiron 7559
4K display with scaling at 200%
i7-6700HQ
Intel HD 530
GTX 960m (with Nvidia Optimus)

Steps to reproduce

Make sure acrylic is enabled for your profile. Resize with window to more than ~160-180 columns.
Type.

Expected behavior

The window is larger and imputing text acts the same.

Actual behavior

Input lag increases significantly. Before resizing the window, there is minimal input lag, barely or not noticeable. After resizing (or starting with a column count > ~160-180), it is easy to type faster than the characters will appear on screen. This happens for WSL Ubuntu 18.04, 18.10, 19.04, CMD and Powershell. I'm not sure if this is specific to using a 4k display with integrated graphics or if this is a Windows bug with acrylic.
@ghost ghost added Needs-Triage It's a new issue that the core contributor team needs to triage at the next triage meeting Needs-Tag-Fix Doesn't match tag requirements labels Jun 21, 2019
@vasekboch
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Can confirm this on Surface Book 2 13 with enabled acrylic and fullscreen window. There is noticable lag.
Version 0.2.1715

@DHowett-MSFT
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This should be helped by #778

@DHowett-MSFT DHowett-MSFT added Area-Performance Performance-related issue Product-Terminal The new Windows Terminal. Resolution-Duplicate There's another issue on the tracker that's pretty much the same thing. Issue-Bug It either shouldn't be doing this or needs an investigation. and removed Needs-Triage It's a new issue that the core contributor team needs to triage at the next triage meeting labels Jun 24, 2019
@ghost ghost removed the Needs-Tag-Fix Doesn't match tag requirements label Jun 24, 2019
@ghost
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ghost commented Jun 25, 2019

This issue has been marked as duplicate and has not had any activity for 1 day. It will be closed for housekeeping purposes.

@ghost ghost closed this as completed Jun 25, 2019
This issue was closed.
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Area-Performance Performance-related issue Issue-Bug It either shouldn't be doing this or needs an investigation. Product-Terminal The new Windows Terminal. Resolution-Duplicate There's another issue on the tracker that's pretty much the same thing.
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@vasekboch @bhatasaka @DHowett-MSFT