[bug] Screen flicker

[onsamyj]

When it scans it flickers, and after that, any time I move the cursor (with arrow keys or mouse) it flickers.

I use Windows Terminal, Windows 11 21H2/22H2, nothing else fancy, I don’t think (feel free to ask). No other CLI app does that. Flicker tested on two machines.

Don’t flicker in WSL or VirtualBox Linux.

[dundee]

Could you try running gdu with --no-mouse? Does it work better?

[onsamyj]

Tried that before, forgot to mention, no change. пн, 21 нояб. 2022 г. в 15:30, Daniel Milde ***@***.***>:

…

Could you try running gdu with --no-mouse? Does it work better? — Reply to this email directly, view it on GitHub <#190 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAIDYRR522EQYY4RY2IFVOLWJNTN5ANCNFSM6AAAAAASGNKPRY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[HubKing]

I came here to report the same thing. If I use SSH on Windows (whether cmd.exe or the new Windows Terminal) to connect to Manjaro Linux (AUR 5.20.0), gdu flickers every time I press an arrow key. --no-mouse made no difference.

I tried ncdu in the same settings, and it did not flicker. Also, I tried gdu locally on the Manjaro, and it did not flicker.

I hope this would be fixed. It is very distracting.

[dundee]

Initial investigation didn't show up much. Looks like mainly the text rendering consumed most of the cpu.

[HubKing]

Initial investigation didn't show up much. Looks like mainly the text rendering consumed most of the cpu.

Since NCDU does not flicker over SSH, won't the problem be solved, if you copy its code and do the same thing for the display part?

2023-01-23-12-30-56.mp4

[onsamyj]

NCDU

As I pointed out, gdu itself does not flicker in WSL.

[dundee]

Gdu is written in different language (Golang) than Ncdu (C).

[Vanav]

I confirm this issue over SSH. Screen flickers on scanning, and on moving with arrow keys. I don't see this issue with other TUI applications. --no-mouse and --no-color make no difference.
Environment: Windows 11, SecureCRT, SSH, XTerm ANSI with 256 colors, Ubuntu 22 on server.
Video:

2023-03-29_14-56-25.mp4

[dundee]

I have upgraded both tview and tcell libraries in v5.24.0. Could you check whether the behavior is still the same?

[onsamyj]

Same flicker.

[danie-dejager]

I've upgraded to 5.24.0 and no longer experience flicker on Centos 7 and Oracle Linux 9 in my Windows Terminal sessions.

[popey]

For the record, seeing the same with --no-mouse and --no-color in Windows PowerShell terminal on Windows 11 having installed v1.6.3482 viaWinget. Is this something to do with whatever go terminal library is being used, as it's seemingly universally a problem?