[Qemu-devel] [Bug 1546680] [NEW] Incorrect display colors when running big endian guest on POWER8 little endian host

[Qemu-devel] [Bug 1546680] [NEW] Incorrect display colors when running big endian guest on POWER8 little endian host

[Timothy Pearson]

Public bug reported:

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.

** Affects: qemu
     Importance: Undecided
         Status: New

** Attachment added: "centos-big-endian-display-color-problem.png"
   https://bugs.launchpad.net/bugs/1546680/+attachment/4573815/+files/centos-big-endian-display-color-problem.png

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

Status in QEMU:
  New

Bug description:
  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.

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[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[Timothy Pearson]

** Tags added: power8

** Tags removed: power8
** Tags added: ppc qemu vga

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  New

Bug description:
  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.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[T. 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?

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  New

Bug description:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1546680/+subscriptions

[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[Timothy Pearson]

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

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  New

Bug description:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1546680/+subscriptions

[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[Timothy Pearson]

** Attachment added: "Screenshot showing problem is also present in kernel framebuffer mode"
   https://bugs.launchpad.net/qemu/+bug/1546680/+attachment/4707706/+files/centos-big-endian-display-color-problem-kernel-framebuffer-fedora-24.png

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  New

Bug description:
  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.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[Thomas 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?

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  Incomplete

Bug description:
  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.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1546680] Re: Incorrect display colors when running big endian guest on POWER8 little endian host

[Launchpad Bug Tracker]

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

** Changed in: qemu
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1546680

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

Status in QEMU:
  Expired

Bug description:
  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.

To manage notifications about this bug go to:
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