GNU bug report logs - #76279
31.0.50; ERC 5.6.1-git: scrolltobottom-mode broken on certain global text scaling

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Message #22 received at 76279-done <at> debbugs.gnu.org (full text, mbox):

From: "J.P." <jp <at> neverwas.me>
To: Trevor Arjeski <tmarjeski <at> gmail.com>
Cc: Eli Zaretskii <eliz <at> gnu.org>, emacs-erc <at> gnu.org, 76279-done <at> debbugs.gnu.org
Subject: Re: bug#76279: 31.0.50; ERC 5.6.1-git: scrolltobottom-mode broken
 on certain global text scaling
Date: Sun, 16 Feb 2025 11:44:05 -0800

Trevor Arjeski <tmarjeski <at> gmail.com> writes:

> "J.P." <jp <at> neverwas.me> writes:
>
>> Trevor Arjeski <tmarjeski <at> gmail.com> writes:
>>
>>> Eli Zaretskii <eliz <at> gnu.org> writes:
>>>
>>>>> From: Trevor Arjeski <tmarjeski <at> gmail.com>
>>>>> Date: Fri, 14 Feb 2025 10:24:12 +0300
>>>>> 
>>>>> Minimal configuration:
>>>>> (use-package erc
>>>>>   :config
>>>>>   (setopt erc-modules '(scrolltobottom))
>>>>>   (erc-scrolltobottom-mode))
>>>>> 
>>>>> 1. Use above config to ensure scrolltobottom module is loaded
>>>>> 2. Start erc with a connection to libera (M-x erc-tls)
>>>>> 3. C-x 1 on the erc buffer window to make it the sole window
>>>>> 4. Once the Libera buffer is loaded, this should be a sufficient number
>>>>> of lines to trigger scroll to bottom.
>>>>> 5. On some resolutions or window size this may be enough to see that the
>>>>> input line (ERC>) is not at the bottom of the window, but in the
>>>>> middle. If not, proceed to step 6.
>>>>> 6. Invoke (global-text-scale-adjust) using C-x C-M-= and continue to
>>>>> press the "=" key until you can notice that the input line jumps to the
>>>>> center of the window.
>>>>
>>>> Aren't you supposed to set erc-input-line-position to -1 if you want
>>>> the prompt to always be at the last line?
>>>
>>> Does not seem to make a difference for me and also in the
>>> `erc-scroll-to-bottom' procedure of erc-goodies.el it seems to already
>>> do that by default with `(or erc-input-line-position -1)', right?
>>
>> Does configuring `erc-scrolltobottom-all' to t help any? (Note that you
>> must do so before connecting or else cycle the module's minor mode.)
>
> That DOES work! Uncovering the mysteries of erc...
>
> We can close this now. Thanks, J.P!

Done, thanks.

>
> Trevor

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