Bug#792594: libqt5core5a: Qt5 requires SSE2 on i386 arch
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.
This is just a test machine for me, it's not like I need this, but after a little
discussion on #debian-kde, I thought it was worth a bug report ;)
I'm reporting this to libqt5core5a since seems to be about a general Qt5 thing.
Cheers, and thanks for all the great work you all do!
* What led up to the situation?
Upgrading Plasma 4 to Plasma 5 in Sid, on an old Celeron machine.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Starting a Plasma 5 session.
* What was the outcome of this action?
Several things crash.
* What outcome did you expect instead?
Desktop showing at least partially.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 4.0.0-2-686-pae (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages libqt5core5a depends on:
ii libc6 2.21-0experimental0
ii libgcc1 1:5.1.1-22
ii libglib2.0-0 2.45.3-1
ii libicu52 52.1-9
ii libpcre16-3 2:8.35-7
ii libstdc++6 5.1.1-22
ii zlib1g 1:1.2.8.dfsg-2+b1
Versions of packages libqt5core5a recommends:
pn qttranslations5-l10n <none>
Versions of packages libqt5core5a suggests:
ii libthai0 0.1.22-2
-- no debconf information
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