Package: emacs;
Reported by: Alex Gramiak <agrambot <at> gmail.com>
Date: Fri, 12 Apr 2019 17:24:02 UTC
Severity: normal
Found in version 26.2
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From: Alex Gramiak <agrambot <at> gmail.com> To: Eli Zaretskii <eliz <at> gnu.org> Cc: 35246 <at> debbugs.gnu.org Subject: bug#35246: 26.2; Mouse wheel scrolling in GTK build sometimes scrolls the entire buffer Date: Mon, 15 Apr 2019 10:18:24 -0600
Eli Zaretskii <eliz <at> gnu.org> writes: >> From: Alex Gramiak <agrambot <at> gmail.com> >> Date: Fri, 12 Apr 2019 11:23:27 -0600 >> >> Occasionally, after first moving the mouse over the frame after it was >> iconified or unused for "a while", scrolling down in a buffer scrolls >> the entire buffer regardless of buffer length. During this scrolling, >> the GUI cursor changes to a busy (hourglass) cursor. >> >> I unfortunately can not reproduce this issue reliably, which is why I >> held off on reporting this until now. I can cancel the scrolling when >> the cursor is an hourglass cursor, at which point the buffer is >> partially scrolled. I recall that debug-on-quit did not help here. > > What does "C-h l" show after that? A couple days ago I had a similar event happen (busy cursor pops up, and a few seconds later normal mouse scrolling occurred). C-h l in that window: <help-echo> <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <double-down-mouse-4> <double-mouse-4> [mwheel-scroll] <help-echo> <down-mouse-5> <mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] C-h l [view-lossage] Just now I had a different event happen -- this time no busy cursor appeared, but the buffer still scrolled a few thousand lines instantly. The selected window was not the window where the scrolling took place. I did C-h l in the selected window and got: <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <help-echo> <help-echo> <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <double-down-mouse-4> <double-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <double-down-mouse-4> <double-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <double-down-mouse-4> <double-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-4> <mouse-4> [mwheel-scroll] <double-down-mouse-4> <double-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <triple-down-mouse-4> <triple-mouse-4> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <help-echo> <help-echo> <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <triple-down-mouse-5> <triple-mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <down-mouse-5> <mouse-5> [mwheel-scroll] <double-down-mouse-5> <double-mouse-5> [mwheel-scroll] C-h l [view-lossage] Is it possibly the commands with a help-echo prefix? P.S. Is there a way to get the event time in C-h l? If not, I think there should be an option for that.
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