Package: libqt5quick5-gles Version: 5.15.1+dfsg-2 Severity: normal When I had a system running with libqt5quick5-gles the display was horribly messed up with missing icons and KDE window controls. I could work around it by setting MESA_EXTENSION_OVERRIDE=”-GL_EXT_bgra -GL_EXT_texture_format_BGRA8888″ in the environment for the user (which didn't affect SDDM which still had mangled display).
When I ran "apt remove libqt5quick5-gles" (which installed libqt5quick5) and rebooted (I could have just restarted sddm but wanted to get the new kernel) it worked without setting any environment variables. Using the MESA_EXTENSION_OVERRIDE variable broke Warzone2100 (for reasons I have not figured out), but using libqt5quick5 KDE and Warzone2100 both work perfectly. https://etbe.coker.com.au/2020/12/04/kde-icons-disappearing-unstable/ I wrote a blog post about this which has some more details. https://inductive-kickback.com/2017/02/mystery-black-window-workaround-druid-back-in-development/ The above blog post has the most technical detail about this including some test Qt code. In what situations does libqt5quick5-gles work better than libqt5quick5? -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (700, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.9.0-4-amd64 (SMP w/4 CPU threads) Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: SELinux: enabled - Mode: Permissive - Policy name: default Versions of packages libqt5quick5-gles depends on: ii libc6 2.31-5 ii libqt5core5a [qtbase-abi-5-15-1] 5.15.1+dfsg-4 ii libqt5gui5 5.15.1+dfsg-4 ii libqt5network5 5.15.1+dfsg-4 ii libqt5qml5 [qtdeclarative-abi-5-15-1] 5.15.1+dfsg-3 ii libqt5qmlmodels5 5.15.1+dfsg-3 ii libstdc++6 10.2.0-19 libqt5quick5-gles recommends no packages. libqt5quick5-gles suggests no packages.
