Incorrect display colors when running big endian guest on POWER8 little endian host

[Timothy Pearson]

When running a big endian CentOS guest on a little endian host system the display shows severe color issues, probably due to endianness not being properly detected / switched in the emulated display hardware. Little endian guests show no display issues on the same host hardware and software.

See attachment for an example of the problem.

[Thomas Huth (th-huth)]

Which version of QEMU are you using? How did you start QEMU (i.e. which kind of graphics card did you specify)? And which version of CentOS are you using for the guest?

[Timothy Pearson (kb9vqf)]

QEMU emulator version 2.6.0 (Debian 1:2.6+dfsg-3), Copyright (c) 2003-2008 Fabrice Bellard

qemu-system-ppc64 --enable-kvm -M pseries -cpu host -m 3G -cdrom Fedora-Server-dvd-ppc64-24-1.2.iso

Fedora 24 Server

[Thomas Huth (th-huth)]

IIRC there were some endianess fixes for this in the past ... can you still reproduce this issue with the latest version of QEMU and a recent kernel? Or could we close this ticket nowadays?

[Launchpad Janitor (janitor)]

[Expired for QEMU because there has been no activity for 60 days.]