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Buffer desync

See original GitHub issue

Sometimes the contents of the buffer inside VSCode are different from the contents of Neovim.

Steps to reproduce:

Install, for example, this extension.
Navigate to the extension settings and click on “Edit in settings.json”:
You will have desync. G does not move to the last line, exiting insert mode moves the cursor to the beginning of the file.

Note: the extension is just an example to 100% reproduce the issue. Desync can happen sometimes in a lot of other cases.

Log

2020-09-28T22:04:22.586Z BufferManager: onDidChangeVisibleTextEditors
2020-09-28T22:04:22.587Z BufferManager: onDidChangeActiveTextEditor
2020-09-28T22:04:22.637Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.638Z DocumentChangeManager: Syncing document changes with neovim
2020-09-28T22:04:22.639Z DocumentChangeManager: Processing document vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.639Z DocumentChangeManager: No diff ranges for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json, skipping
2020-09-28T22:04:22.640Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.640Z DocumentChangeManager: Syncing document changes with neovim
2020-09-28T22:04:22.641Z DocumentChangeManager: Processing document vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.642Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.643Z DocumentChangeManager: Syncing document changes with neovim
2020-09-28T22:04:22.643Z DocumentChangeManager: Processing document vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.644Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.644Z DocumentChangeManager: Syncing document changes with neovim
2020-09-28T22:04:22.645Z DocumentChangeManager: Processing document vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.649Z BufferManager: syncing active editor
2020-09-28T22:04:22.649Z BufferManager: Waiting for completing layout resyncing
2020-09-28T22:04:22.650Z DocumentChangeManager: BufId: 2, lineChanges: 1, tick: 7, skipTick: 8
2020-09-28T22:04:22.652Z DocumentChangeManager: BufId: 2, lineChanges: 1, tick: 7, skipTick: 8
2020-09-28T22:04:22.653Z DocumentChangeManager: BufId: 2, lineChanges: 1, tick: 7, skipTick: 8
2020-09-28T22:04:22.654Z DocumentChangeManager: Received neovim buffer changed event for bufId: 2, tick: 8
2020-09-28T22:04:22.654Z DocumentChangeManager: BufId: 2 skipping tick: 8
2020-09-28T22:04:22.655Z DocumentChangeManager: Received neovim buffer changed event for bufId: 2, tick: 9
2020-09-28T22:04:22.655Z DocumentChangeManager: Applying neovim edits
2020-09-28T22:04:22.655Z DocumentChangeManager: Accumulating edits for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json, bufId: 2
2020-09-28T22:04:22.661Z DocumentChangeManager: Applying edits for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.665Z DocumentChangeManager: Received neovim buffer changed event for bufId: 2, tick: 10
2020-09-28T22:04:22.687Z BufferManager: syncing layout
2020-09-28T22:04:22.688Z BufferManager: new/changed editors/windows
2020-09-28T22:04:22.688Z BufferManager: Visible editor, viewColumn: 1, doc: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.688Z BufferManager: Creating new neovim window for 1 column (undefined is OK here)
2020-09-28T22:04:22.695Z CursorManager: SelectionChanged
2020-09-28T22:04:22.696Z CursorManager: Waiting for possible layout completion operation
2020-09-28T22:04:22.696Z BufferManager: Waiting for completing layout resyncing
2020-09-28T22:04:22.710Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.711Z DocumentChangeManager: Skipping a change since versions equals
2020-09-28T22:04:22.715Z CursorManager: Received cursor update from neovim, winId: 1004, pos: [0, 0]
2020-09-28T22:04:22.715Z CursorManager: No editor for winId: 1004
2020-09-28T22:04:22.716Z CursorManager: Received cursor update from neovim, winId: 1000, pos: [0, 0]
2020-09-28T22:04:22.716Z CursorManager: No editor for winId: 1000
2020-09-28T22:04:22.717Z BufferManager: Created new window: 1004
2020-09-28T22:04:22.718Z BufferManager: ViewColumn: 1 - WinId: 1004
2020-09-28T22:04:22.718Z BufferManager: Setting buffer: 2 to win: 1004, cursor: [102, 4]
2020-09-28T22:04:22.718Z BufferManager: Closing non visible editors
2020-09-28T22:04:22.719Z BufferManager: Waiting done
2020-09-28T22:04:22.719Z BufferManager: Waiting done
2020-09-28T22:04:22.719Z BufferManager: Setting active editor - viewColumn: 1, winId: 1004
2020-09-28T22:04:22.720Z CursorManager: Waiting for possible document change completion operation
2020-09-28T22:04:22.730Z CursorManager: Received cursor update from neovim, winId: 1004, pos: [101, 4]
2020-09-28T22:04:22.730Z CursorManager: Waiting for document change completion before setting the cursor, winId: 1004
2020-09-28T22:04:22.730Z CursorManager: Received cursor update from neovim, winId: 1000, pos: [0, 0]
2020-09-28T22:04:22.731Z CursorManager: No editor for winId: 1000
2020-09-28T22:04:22.735Z CursorManager: Received cursor update from neovim, winId: 1004, pos: [101, 4]
2020-09-28T22:04:22.736Z CursorManager: Waiting for document change completion before setting the cursor, winId: 1004
2020-09-28T22:04:22.736Z CursorManager: Received cursor update from neovim, winId: 1000, pos: [0, 0]
2020-09-28T22:04:22.736Z CursorManager: No editor for winId: 1000
2020-09-28T22:04:22.747Z DocumentChangeManager: Changes succesfully applied for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.747Z DocumentChangeManager: Accumulating edits for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json, bufId: 2
2020-09-28T22:04:22.748Z DocumentChangeManager: Applying edits for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.762Z DocumentChangeManager: Change text document for uri: vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.763Z DocumentChangeManager: Skipping a change since versions equals
2020-09-28T22:04:22.786Z DocumentChangeManager: Changes succesfully applied for vscode-userdata:/home/gena/.config/Code%20-%20OSS/User/settings.json
2020-09-28T22:04:22.787Z CursorManager: Waiting done
2020-09-28T22:04:22.787Z CursorManager: kind: 3, WinId: 1004, cursor: [100, 4], isMultiSelection: false
2020-09-28T22:04:22.787Z CursorManager: Updating cursor pos, winId: 1004, pos: [103, 4]
2020-09-28T22:04:22.787Z CursorManager: Waiting document change completion done, winId: 1004
2020-09-28T22:04:22.787Z CursorManager: Updating cursor in editor, viewColumn: 1, pos: [101, 4]
2020-09-28T22:04:22.788Z CursorManager: Waiting document change completion done, winId: 1004
2020-09-28T22:04:22.788Z CursorManager: Updating cursor in editor, viewColumn: 1, pos: [101, 4]
2020-09-28T22:04:22.843Z CursorManager: SelectionChanged
2020-09-28T22:04:22.844Z CursorManager: Waiting for possible layout completion operation
2020-09-28T22:04:22.844Z CursorManager: Waiting for possible document change completion operation
2020-09-28T22:04:22.844Z CursorManager: Waiting done
2020-09-28T22:04:22.844Z CursorManager: kind: 3, WinId: 1004, cursor: [101, 4], isMultiSelection: false
2020-09-28T22:04:22.845Z CursorManager: Skipping event since neovim has same cursor pos

Issue Analytics

State:
Created 3 years ago
Comments:7 (1 by maintainers)

Top GitHub Comments

3reactions

David-Elsecommented, Oct 4, 2020

I am often getting cases where normal mode does not seem to be operating on the same file I am seeing on the screen.

For example, in normal mode, the cursor can be stuck at the top, hjkl does nothing. If I go into insert mode, cursor down, press escape then the cursor jumps back to the top and freezes again. If I do some undos then the cursor might be able to move a few lines down.

I am getting it on an untitled/unsaved file right now, but it has happened on saved files.

@asvetliakov Something is quite broken, does this sound like a buffer desync?

1reaction

Shaturcommented, Dec 18, 2020

@mizagog, sorry, forgot to mention, the version above is from a branch that draws labels for easymotion on top.

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