From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Tassilo Horn Newsgroups: gmane.emacs.devel Subject: Re: 23.0.60; Heavy display problems with new font backend Date: Sun, 20 Apr 2008 11:29:48 +0200 Message-ID: <87abjoeuwj.fsf@baldur.tsdh.de> References: <87hcdy6srx.fsf@baldur.tsdh.de> <4809F8AC.8000802@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1208684623 25850 80.91.229.12 (20 Apr 2008 09:43:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 20 Apr 2008 09:43:43 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Apr 20 11:44:18 2008 connect(): Connection refused Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JnW5p-0004Ow-6h for ged-emacs-devel@m.gmane.org; Sun, 20 Apr 2008 11:44:17 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JnW59-0000X5-DX for ged-emacs-devel@m.gmane.org; Sun, 20 Apr 2008 05:43:35 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JnVrv-0005Cq-Pb for emacs-devel@gnu.org; Sun, 20 Apr 2008 05:29:56 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JnVrt-0005CW-KH for emacs-devel@gnu.org; Sun, 20 Apr 2008 05:29:54 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JnVrt-0005CP-1x for emacs-devel@gnu.org; Sun, 20 Apr 2008 05:29:53 -0400 Original-Received: from out1.smtp.messagingengine.com ([66.111.4.25]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JnVrr-00031y-Rm for emacs-devel@gnu.org; Sun, 20 Apr 2008 05:29:52 -0400 Original-Received: from compute2.internal (compute2.internal [10.202.2.42]) by out1.messagingengine.com (Postfix) with ESMTP id 968E610137B for ; Sun, 20 Apr 2008 05:29:51 -0400 (EDT) Original-Received: from heartbeat2.messagingengine.com ([10.202.2.161]) by compute2.internal (MEProxy); Sun, 20 Apr 2008 05:29:51 -0400 X-Sasl-enc: x1LptQD8vfMdj47mBuUWZHFtjTJes7l+lGsHQE2W22Fj 1208683791 Original-Received: from baldur.tsdh.de (p54AF30BA.dip0.t-ipconnect.de [84.175.48.186]) by mail.messagingengine.com (Postfix) with ESMTPA id BBF522DDBF for ; Sun, 20 Apr 2008 05:29:50 -0400 (EDT) Mail-Followup-To: emacs-devel@gnu.org In-Reply-To: <4809F8AC.8000802@gnu.org> (Jason Rumney's message of "Sat, 19 Apr 2008 14:50:36 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) X-detected-kernel: by monty-python.gnu.org: Genre and OS details not recognized. X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:95510 Archived-At: Jason Rumney writes: > Tassilo Horn wrote: >> - quite often a "w", "k", "S" or "r" looks bold although it shouldn't >> - "m" has a green shine between its legs >> - fonts aren't sharp as if subpixel hinting was disabled >> >> The attached pics fonts{1,2,3,4}.png show some of those minor display >> problems. >> > > I only see the first problem. Which suggests that the subpixel > antialiasing is correct for my display but incorrect for yours, as the > letters all look sharp for me, without any more color artifacts than > you'd expect from subpixel antialiasing. Hm, I use XFCE here which sets subpixel antialiasing for all applications (I tried setting it with Xresources, too). If I compare emacs to some other editor using the same font, the difference is obvious. >> While trying to find some more of those display problems I opened the >> attached UTF-8 testfile and found a major display bug. The pics >> v-with-dot.png and v-with-dot2.png show it. >> > These seem to be problems in the composition rules for those > modifiers. Things probably don't look much better with the old font > code either. Hm, with --disable-font-backend using adobe courier font, I cannot see the dots over v and r, but at least the characters aren't displayed twice when point moves over them. >> Additionally in that file most greek chars aren't antialiased. >> > Only some fonts support antialiasing. If you try different greek > fonts, you might find one where it works. Hm, at least kwrite does antialiasing for these greek chars using the same font I've set for emacs. The results don't look too sharp, though. Bye, Tassilo