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AlecAivazis
Terminal consistently flickers when scrolling through paginated list of options
What operating system and terminal are you using? MacOS+default terminal, also saw same issue on Windows+PowerShell
An example that showcases the bug. (short clip to fit 10mb limit, but continues as you scroll down the list and paginate) https://user-images.githubusercontent.com/54565933/179568187-b4d8e098-a23b-4484-b988-ca143dda607a.mov
What did you expect to see? No flickering when scrolling through paginated list
What did you see instead? Flickering when scrolling through paginated list
I also experience this and wanted to find ways to mitigate. This is the redrawing logic: https://github.com/AlecAivazis/survey/blob/e47352f914346a910cc7e1ca9f65a7ac0674449a/renderer.go#L135-L145
Perhaps there is a way to redraw the last N lines in a terminal in a way that doesn't cause flickering. Ideas welcome!
Perhaps there is a way to redraw the last N lines in a terminal in a way that doesn't cause flickering. Ideas welcome!
There are application synchronized updates: https://gitlab.freedesktop.org/terminal-wg/specifications/-/merge_requests/2
TL;DR application emits one escape at the beginning of a "frame" (update) and another one when done.
Note that there are two variants; the DCS initially suggested in the MR, which was the first one implemented by terminals. Later, it was generally agreed that a "private mode" was better, and the 2026 private mode was added.
Another option is writing the erase commands into a buffer, and doing a single actual terminal write.
