Package: xscreensaver Version: 5.42+dfsg1-1 Severity: normal If you look closely at the output of the epicycle screenhack, part of each curve is drawn in black on black. This seems most often to occur at the part of the figure that is next the brightest drawn part.
I built the pristine upstream xscreensaver-5.43 code (and ran it without installing). It does not exhibit this problem. -- System Information: Debian Release: 10.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-8-amd64 (SMP w/12 CPU cores) Kernel taint flags: TAINT_USER Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages xscreensaver depends on: ii libatk1.0-0 2.30.0-2 ii libc6 2.28-10 ii libcairo2 1.16.0-4 ii libfontconfig1 2.13.1-2 ii libfreetype6 2.9.1-3+deb10u1 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libglade2-0 1:2.6.4-2+b1 ii libglib2.0-0 2.58.3-2+deb10u2 ii libgtk2.0-0 2.24.32-3 ii libice6 2:1.0.9-2 ii libpam0g 1.3.1-5 ii libpango-1.0-0 1.42.4-7~deb10u1 ii libpangocairo-1.0-0 1.42.4-7~deb10u1 ii libpangoft2-1.0-0 1.42.4-7~deb10u1 ii libsm6 2:1.2.3-1 ii libx11-6 2:1.6.7-1 ii libxext6 2:1.3.3-1+b2 ii libxi6 2:1.7.9-1 ii libxinerama1 2:1.1.4-2 ii libxml2 2.9.4+dfsg1-7+b3 ii libxmu6 2:1.1.2-2+b3 ii libxrandr2 2:1.5.1-1 ii libxrender1 1:0.9.10-1 ii libxt6 1:1.1.5-1+b3 ii libxxf86vm1 1:1.1.4-1+b2 ii xscreensaver-data 5.42+dfsg1-1 Versions of packages xscreensaver recommends: ii libjpeg-turbo-progs 1:1.5.2-2+b1 ii perl 5.28.1-6 ii wamerican [wordlist] 2018.04.16-1 ii wbritish [wordlist] 2018.04.16-1 Versions of packages xscreensaver suggests: ii firefox-esr [www-browser] 68.6.0esr-1~deb10u1 pn fortune <none> ii gdm3 3.30.2-3 ii google-chrome-stable [www-browser] 80.0.3987.132-1 ii links [www-browser] 2.18-2 pn qcam | streamer <none> ii w3m [www-browser] 0.5.3-37 pn xdaliclock <none> pn xfishtank <none> ii xscreensaver-data-extra 5.42+dfsg1-1 ii xscreensaver-gl 5.42+dfsg1-1 ii xscreensaver-gl-extra 5.42+dfsg1-1 -- no debconf information
