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Hermes SMTP Server) with ESMTPA ID fc9223dab591db9dfb359843dc924c1a; Wed, 04 Sep 2024 00:57:47 +0000 (UTC) In-Reply-To: <86ikvc7vcr.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 03 Sep 2024 15:52:20 +0300") X-Mailer: WebService/1.1.22645 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:291171 Archived-At: Eli Zaretskii writes: > Po Lu, any other ideas or suggestions? > >> FYI there are other reports online of people noticing major latency in HiDPI mode with the PGTK version, especially when the frame is fullscreen (so there's more pixels to update): >> >> https://old.reddit.com/r/emacs/comments/ucv0at/awful_performance_with_pgtk_on_wayland/ >> >> https://old.reddit.com/r/emacs/comments/1acdieh/pgtk_emacs_high_input_lag_at_large_frame_sizes_on/ > > I don't doubt what you report is real. I proposed a theory in a number of other tickets concerning this lag, specifically that the GTK 3 toolkit cannot take advantage of hardware accelerated graphics on Wayland, which produces perceptible delays on large displays.