Subject: Re: bug#34819: 26.1; Blank help-echo tooltips for mode line menus

From: Phil Sainty <[email-masked]>
Date: Wed, 13 Mar 2019 18:03:17 +1300

On 2019-03-13 16:34, Eli Zaretskii wrote:
>> Bisected to c29071587c64efb30792bd72248d3c791abd9337.
> 
> So the problem can be solved by adding (inhibit-double-buffering . t)
> to tooltip-frame-parameters?

Sadly not.  Starting a new emacs instance with the following did not
not have any apparent effect on the issue.

(custom-set-variables
  '(tooltip-frame-parameters
    (quote
     ((name . "tooltip")
      (internal-border-width . 2)
      (border-width . 1)
      (no-special-glyphs . t)
      (inhibit-double-buffering . t)))))

I also tried (set-frame-parameter nil 'inhibit-double-buffering t)
in the main frame, just in case that had an effect, but it did not.

-Phil