Public bug reported: Hello, I suspect a endianness problem in this BigEndian Machine (Apple PowerBook G4 with ATI Radeon Mobility 9700). The same architecture (bigEndian) shows no this specific issue on PowerMac G5 Quad with PCI-Express ATI Radeon HD4670 with VGA BIOS (not powerpc flashed card).
The problem seems to be a screen changing resolution or similar having Compiz activated. If I switch the screen resolution on this laptop, the garbage on the screen is more visible than using NO COMPOSITE Marco Mate Display Manager. The problem is enhanced using a second monitor attached to a DVI connector on this laptop. Can be easly reproduced. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-116.140-powerpc-smp 4.4.98 Uname: Linux 4.4.0-116-powerpc-smp ppc ApportVersion: 2.20.1-0ubuntu2.15 Architecture: powerpc CurrentDesktop: MATE Date: Fri Feb 23 14:01:47 2018 InstallationDate: Installed on 2018-02-21 (2 days ago) InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release powerpc (20160719) SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug corruption powerpc xenial ** Attachment added: "more screenshot are available on request" https://bugs.launchpad.net/bugs/1751269/+attachment/5061150/+files/sshot-1.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751269 Title: Compiz related bug (Endianness bug somewhere) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1751269/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs