From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id MKriBg1sFGLI6AAAgWs5BA (envelope-from ) for ; Tue, 22 Feb 2022 05:52:29 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id +BQ/BA1sFGJXOwAA9RJhRA (envelope-from ) for ; Tue, 22 Feb 2022 05:52:29 +0100 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id C19C928B0A for ; Tue, 22 Feb 2022 05:52:28 +0100 (CET) Received: from localhost ([::1]:44216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nMNA3-0006dW-4g for larch@yhetil.org; Mon, 21 Feb 2022 23:52:27 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50276) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nMN9e-0006cy-L3 for bug-guix@gnu.org; Mon, 21 Feb 2022 23:52:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:45797) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nMN9e-0005z5-Bf for bug-guix@gnu.org; Mon, 21 Feb 2022 23:52:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nMN9e-0003jh-1O for bug-guix@gnu.org; Mon, 21 Feb 2022 23:52:02 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#54033: Calibre's ebook-viewer only shows white-on-white or dark-on-dark. 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Mon, 21 Feb 2022 20:51:38 -0800 (PST) MIME-Version: 1.0 References: <18be745d-10bf-4be9-bef3-c88cc88d9554@www.fastmail.com> In-Reply-To: From: Jacob MacDonald Date: Mon, 21 Feb 2022 22:51:27 -0600 Message-ID: Content-Type: text/plain; charset="UTF-8" X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1645505548; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:resent-cc:resent-from:resent-sender: resent-message-id:in-reply-to:in-reply-to:references:references: list-id:list-help:list-unsubscribe:list-subscribe:list-post: dkim-signature; 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spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -2.83 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=A4yNKcXZ; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: C19C928B0A X-Spam-Score: -2.83 X-Migadu-Scanner: scn0.migadu.com X-TUID: r+IcIufGwo6A My description of the bug was hasty. The viewer is still broken in the same way, but I realize now that the text is not invisible or unselectable. Rather, selection still works but only displays selection markers at the upper left corner of the screen. According to a bug report about Calibre, similar things can happen if the fonts are not properly installed (https://www.mobileread.com/forums/showthread.php?t=315146). However, I checked a working version and broken version of my Guix profile against one another and the fonts appear to be installed correctly in both trees. While doing that, I also noticed that __pycache__ directories only exist in the broken tree. Is that a signal of something going wrong or just a change in Guix's Python?