popup.el doesn't play nice with whitespace-mode and linum-mode

[kprav33n]

When using popup.el with whitespace-mode and linum-mode, unwanted artifacts are seen on the screen due to the fact that popup.el adds empty lines at the end of the buffer to render the popup menu.

Please see: https://github.com/auto-complete/auto-complete/issues/90 https://github.com/tjarvstrand/edts/issues/35 https://github.com/bbatsov/prelude/issues/19

I think that popup.el is the root cause for all these issues.

[nickpascucci]

I'm also seeing this; it occurs even when linum-mode and whitespace-mode are turned off.

[brandonw]

I am also seeing this issue. If I do not use linum mode then popup rendering executes correctly.

[syohex]

@kprav33n @nickpascucci @brandonw I confirmed whitespace-mode problem. But I don't understand linum-mode problem.

Please show us minimum configuration for reproducing this issue and tell us how to reproduce this issue. And please upload screenshots about this issue if possible.

[kprav33n]

I'm not able to reproduce the linum-mode issue with the recent build of emacs and popup.el. Here is the screenshot of the whitespace mode issue.

[nickpascucci]

I found an old version of popup.el shadowing the ELPA version in my load path. With that removed I'm no longer able to reproduce the EOB whitespace problem. I do see some whitespace-mode highlighting around popups like @kprav33n.

[brandonw]

@syohex @kprav33n The behavior occurs if I:

emacs -nw -Q [include auto-complete and popup in load-path] M-x linum-mode M-x eval-expression (require 'auto-complete-config) M-x eval-expression (ac-config-default)

Make sure to run in console mode. GUI Emacs seems to work fine, even with linum mode enabled. It is only in console mode that this occurs:

[syohex]

@brandonw Thanks for the information.

[jobevers]

Is this of any use: http://stackoverflow.com/a/27960576/2752242