On Thursday 16 July 2015 17:17:38 JanKusanagi wrote: > Package: libqt5core5a > Version: 5.4.2+dfsg-4 > Severity: normal > > Dear Maintainer, > > I've upgraded the Plasma desktop to Plasma 5, and the new desktop fails to > start. Looking into the problem I've realized that several components > (kwin_x11, plasmashell, several of the systemsettings5 modules...) finish > showing the message "This program requires an X86 processor that supports > SSE2 extension, at least a Pentium 4 or newer" in the console. > > I've also checked that a non-kf5 program such as 2048-qt also fails to start > with the same message. > > > As per > http://lists.qt-project.org/pipermail/development/2013-December/014530.html > I understand that all or some Qt5 packages are built with SSE2 requirement > enabled. > >From that link and from experimentation, I think the crashes only occur in > >programs > that use QML. For instance, the KF5 version of KWrite and Konsole work fine. > > > I understand a machine such as this Celeron is ancient, but maybe it would > be possible (and worthwhile) to provide some kind of dual/conficting > packages for some of those libraries, with and without the SSE2 > requirements.
Indeed we might be missing buildin libQml without SSE2 apart of the SSE2- enabled version, if possible at all. If it is possible it will disable JIT, so those apps will definitely run slower. I'll see what I can do, but expect this bug fixed in Qt >= 5.5.0 whenever we get to push it. Thanks for your bug report! -- "No es el crecimiento de la tecnología lo que excluye, sino la protección sistemática de los derechos de uso de la misma, lo cual se puede aplicar al arte." David Cuartielles Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/
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