From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregor Zattler Newsgroups: gmane.emacs.bugs Subject: bug#67155: 30.0.50; (x-synchronize t) garbels display Date: Thu, 16 Nov 2023 13:10:44 +0100 Message-ID: <87sf55hpa3.fsf@no.lan> References: <8734x98aua.fsf@no.lan> <834jhnrwun.fsf@gnu.org> <871qcrmabh.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15015"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 67155@debbugs.gnu.org To: Po Lu , Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 16 13:13:02 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r3bEz-0003bn-5N for geb-bug-gnu-emacs@m.gmane-mx.org; 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21:10 +08]: > Eli Zaretskii writes: >>> From: Gregor Zattler >>> Date: Tue, 14 Nov 2023 00:58:21 +0100 >>> >>> I cannot reproduce with -Q, but evaluating >>> `(x-synchronize t)' sometimes garbles display. See >>> attached screenshot. Note: When copying the region >>> shown in the screenshot and pasting into nano, the text >>> is correct, not garbled. >>> >>> Evaluation of `(x-synchronize t)' is part of the >>> attempt to capture a usable backtrace for bug#66978. >>> >>> Now this display bug is another one. If you have any >>> ideas how to investigate these I would be happy to help >>> following instructions. >> >> Po Lu, any ideas or suggestions? > > Not really, unless you (Gregor) try running Emacs with the X font > backend for a while, and tell me whether the problem abates then: > > (set-frame-parameter nil 'font-backend 'x) With this setting the display should not be garbled, although using `(x-synchronize t)'? This only worked with (set-frame-parameter nil 'font-backend "x") so with string instead of symbol. This display bug showed up a few times till I reported it -- but not since I made `(x-synchronize t)' part of my standard setup. I now enabled `(set-frame-parameter nil 'font-backend "x")' as part of my setup, but the available fonts are really not nice. I will see how long I can bear with them for the sake of catching a backtrace of for bug#66978, which also did not show up again. Thanks, Gregor