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Garbage characters after line in nano #72

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opened 2026-01-30 21:41:26 +00:00 by claunia · 7 comments
claunia commented 2026-01-30 21:41:26 +00:00
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Originally created by @mobluse on GitHub (Feb 10, 2018).

  • Your Windows build number: (Type ver at a Windows Command Prompt)
    Microsoft Windows [Version 10.0.17093.1000]
    Ubuntu is most updated.

  • What you're doing and what's happening: (Copy & paste specific commands and their output, or include screen shots)
    I'm editing a file in GNU nano and when i go to the end of line there are garbage characters after it. The left part shows WSL Ubuntu with original Console and the right part wsltty 1.8.4 (based on mintty). wsltty is correct in this case.
    nano-beep
    apt source beep
    cd beep-1.3/
    nano beep.c

  • What's wrong / what should be happening instead:
    There should not be characters after the last ; on the line starting with $vent));. This bug makes it rather difficult to edit files. The colors are also different, but ought to be the same as in e.g. xterm unless one has some special color scheme. The fonts are the same teletext2.ttf but they have different sizes (16pt and 11pt, respectively) even though they look the same size. I think if one uses a font size it should be the same size on screen in different programs.

Originally created by @mobluse on GitHub (Feb 10, 2018). * Your Windows build number: (Type `ver` at a Windows Command Prompt) Microsoft Windows [Version 10.0.17093.1000] Ubuntu is most updated. * What you're doing and what's happening: (Copy & paste specific commands and their output, or include screen shots) I'm editing a file in GNU nano and when i go to the end of line there are garbage characters after it. The left part shows WSL Ubuntu with original Console and the right part wsltty 1.8.4 (based on mintty). wsltty is correct in this case. ![nano-beep](https://user-images.githubusercontent.com/5777329/36062286-6eab7082-0e69-11e8-80db-c991f50f2daa.png) `apt source beep` `cd beep-1.3/` `nano beep.c` * What's wrong / what should be happening instead: There should not be characters after the last `;` on the line starting with `$vent));`. This bug makes it rather difficult to edit files. The colors are also different, but ought to be the same as in e.g. xterm unless one has some special color scheme. The fonts are the same [teletext2.ttf](https://github.com/peterkvt80/Muttlee/tree/master/public/assets) but they have different sizes (16pt and 11pt, respectively) even though they look the same size. I think if one uses a font size it should be the same size on screen in different programs.
claunia commented 2026-01-30 21:41:27 +00:00
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@zadjii-msft commented on GitHub (Feb 12, 2018):

In conhost, can you show me a before/after of pasting the text?

Does selecting (with the mouse) the text that's erroneous (the ;te(console_fd... bit) cause the erroneous text to get updated?

It looks to me that we're not clearing the line after the text gets pasted - this could be a VT issue or a possibly a rendering issue.

@zadjii-msft commented on GitHub (Feb 12, 2018): In conhost, can you show me a before/after of pasting the text? Does selecting (with the mouse) the text that's erroneous (the `;te(console_fd...` bit) cause the erroneous text to get updated? It looks to me that we're not clearing the line after the text gets pasted - this could be a VT issue or a possibly a rendering issue.
claunia commented 2026-01-30 21:41:27 +00:00
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@mobluse commented on GitHub (Feb 13, 2018):

I have not pasted any text -- just gone to the end of the line using the right arrow key or the End key.

@mobluse commented on GitHub (Feb 13, 2018): I have not pasted any text -- just gone to the end of the line using the right arrow key or the End key.
claunia commented 2026-01-30 21:41:27 +00:00
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@mobluse commented on GitHub (Feb 13, 2018):

I can select it with the mouse and that also get copied to the clipboard, but I cannot move into the garbage text with the arrow keys. I can type over the garbage text. It's reproducible here.
ubuntu 2018-02-13 18_17_06
ubuntu 2018-02-13 18_19_35
orld_fd, &e, sizeof(str

@mobluse commented on GitHub (Feb 13, 2018): I can select it with the mouse and that also get copied to the clipboard, but I cannot move into the garbage text with the arrow keys. I can type over the garbage text. It's reproducible here. ![ubuntu 2018-02-13 18_17_06](https://user-images.githubusercontent.com/5777329/36163876-ff37fc14-10ea-11e8-8422-b662eb609322.png) ![ubuntu 2018-02-13 18_19_35](https://user-images.githubusercontent.com/5777329/36163853-f2fee9b2-10ea-11e8-8698-fa67b0213372.png) orld_fd, &e, sizeof(str
claunia commented 2026-01-30 21:41:28 +00:00
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@miniksa commented on GitHub (May 29, 2019):

This should probably be repro'd again. It's been a long time and we've made a lot of VT and buffer fixes in the past year.

@miniksa commented on GitHub (May 29, 2019): This should probably be repro'd again. It's been a long time and we've made a lot of VT and buffer fixes in the past year.
claunia commented 2026-01-30 21:41:28 +00:00
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@zadjii-msft commented on GitHub (Nov 22, 2021):

@mobluse Are you still seeing this on newer Windows builds? Sorry this got lost in the backlog. I'm guessing this might have been a TERM mismatch, or just a faulty VT implementation that might have been fixed in the last year or so.

@zadjii-msft commented on GitHub (Nov 22, 2021): @mobluse Are you still seeing this on newer Windows builds? Sorry this got lost in the backlog. I'm guessing this might have been a TERM mismatch, or just a faulty VT implementation that might have been fixed in the last year or so.
claunia commented 2026-01-30 21:41:28 +00:00
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@mobluse commented on GitHub (Nov 23, 2021):

No, the bug has disappeared here in Windows 10 21H1 19043.1348.

@mobluse commented on GitHub (Nov 23, 2021): No, the bug has disappeared here in Windows 10 21H1 19043.1348.
claunia commented 2026-01-30 21:41:28 +00:00
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@zadjii-msft commented on GitHub (Nov 23, 2021):

Awesome, thanks for following up!

@zadjii-msft commented on GitHub (Nov 23, 2021): Awesome, thanks for following up!
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