LiveShare Jupyter Notebook output synch problem

[MattOrmianek]

Type: Bug

When I create session on mac using LiveShare, and work on Jupyter Notebook user that created this session see all output off cells (for example: output is 3 plots) and users connected to that session see limited output (for example: output for that user is only 1 of 3 plots). Checked versions of everything, also tried searching on web, nothing helps. Same problem when session is created on PC and mac user try to see output of cell. Also same problem when user is connected to web. Tried with several devices.

Extension version: 1.0.14 VS Code version: Code 1.73.1 (Universal) (6261075646f055b99068d3688932416f2346dd3b, 2022-11-09T02:08:38.961Z) OS version: Darwin arm64 22.2.0 Modes: Sandboxed: No

System Info

|Item|Value| |---|---| |CPUs|Apple M1 Pro (10 x 24)| |GPU Status|2d_canvas: enabled
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
metal: disabled_off
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_renderer: enabled_on
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: disabled_off| |Load (avg)|5, 4, 3| |Memory (System)|16.00GB (0.05GB free)| |Process Argv|--crash-reporter-id 219a6e59-7038-479d-9d8e-3fcfe7c543e2| |Screen Reader|no| |VM|0%|

A/B Experiments

``` vsliv368cf:30146710 vsreu685:30147344 python383:30185418 vspor879:30202332 vspor708:30202333 vspor363:30204092 vslsvsres303:30308271 pythonvspyl392:30443607 vserr242cf:30382550 pythontb:30283811 vsjup518:30340749 pythonptprofiler:30281270 vshan820:30294714 vstes263:30335439 pythondataviewer:30285071 vscod805:30301674 binariesv615:30325510 bridge0708:30335490 bridge0723:30353136 cmake_vspar411:30581797 vsaa593cf:30376535 pythonvs932:30410667 cppdebug:30492333 vsclangdc:30486549 c4g48928:30535728 dsvsc012:30540252 azure-dev_surveyone:30548225 vsccc:30610678 pyindex848:30577860 nodejswelcome1cf:30587006 2e4cg342:30602488 89544117:30613380 pythonsymbol12cf:30657549 2i9eh265:30646982 ```

[DonJayamanne]

Thank you for filing this issue and sorry you are running into this.

• Please could you share a sample notebook that can be used to replicate this issue (with the outputs)
• Does this apply to any notebook or only a notebook that was executed while live share was in progress?

[MattOrmianek]

Thank you for answer,

• sample notebook is just python code plotting two plots, you can plot sin function twice, and it will show the problem (actually will not show second plot) (remember that code must be in one notebook cell)
• every notebook has this problem, I tried using old ones, create new, same issue, output is only one plot (what's more: when you get error or warning you will get only first message, for example: on 'server' live share site you have 2 warnings and after that 2 plots [because it plots things besides warnings]) If you need additional information, feel free to ask.

[DonJayamanne]

Please could you share a sample notebook with some easy plot with few dependencies so I can try this at my end.

[MattOrmianek]

Here it is: https://github.com/MattOrmianek/jupyter-testing/tree/main You have to install matplotlib lib for python.

[rsargent]

I believe I'm running into the same issue, and can reproduce in two steps, starting with an empty notebook.

Create an empty notebook test.ipynb, and compute a simple expression in the first cell:

Connect guest through liveshare (right window is guest):

I expect the output from the computation to appear on the guest screen, but it doesn't.

[DonJayamanne]

I'm sorry i missed this issue, will look into this shortly and try to get and update on this soon.

[DonJayamanne]

I can replicate this issue,

[arkanoid87]

Same issue here with 1.92.2 on both ends

Cell execution results are not visible on the guest