ernsteiswuerfel, thank you for reporting this and helping make Ubuntu better.
1) To clarify, you have which mac precisely from the list in https://support.apple.com/en-us/HT201518 ? 2) Is there something missing when you choose 1 that you don't get from the other three? ** Changed in: xorg (Ubuntu) Importance: Undecided => Low ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1575391 Title: GPU compositors do not work on r300-class Radeon cards on PPC hardware Status in xorg package in Ubuntu: Incomplete Bug description: On Ubuntu MATE 16.04 one can select 4 compositing modes via MATE Tweak (german translation): 1. Marco (kein Komposit) 2. Marco (Programmkomposit) 3. Marco (Compton GPU-Komposit) 4. Compiz (anspruchsvolle Schreibtischeffekte mit GPU-Beschleunigung) On my PowerMac G5 7,3 with a Radeon 9650 Pro only the 1st one works properly. The 2nd one works, but more sluggish and a jerkier mouse pointer. 3 and 4 trash the desktop showing wrong colours. Only VERY jerky mouse movement is possible then. The desktop is no longer in a usable state any longer, you can't click on anything. Restarting the desktop with "systemctl restart lightdm" from console returns the desktop usable (defaulting to 1st compositor. Same problem on my PowerBook 5,6. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-powerpc64-smp 4.4.6 Uname: Linux 4.4.0-21-powerpc64-smp ppc64 ApportVersion: 2.20.1-0ubuntu2 Architecture: powerpc CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Tue Apr 26 23:40:25 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV350 [Radeon 9550/9600/X1050 Series] [1002:4150] (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] RV350 [Radeon 9550/9600/X1050 Series] [1002:4150] InstallationDate: Installed on 2016-03-26 (31 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Beta powerpc (20160326) ProcEnviron: LANGUAGE=de_AT:de TERM=xterm PATH=(custom, no user) LANG=de_AT.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: root=UUID=d6fab932-3e79-4f5c-a392-c86c01b5a8f9 ro rootflags=subvol=@ radeon.agpmode=-1 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Tue Apr 26 22:55:40 2016 xserver.configfile: /etc/X11/xorg.conf xserver.devices: input Logitech G100s Optical Gaming Mouse MOUSE, id 6 input HID 046a:010d KEYBOARD, id 7 input HID 046a:010d KEYBOARD, id 8 input PMU KEYBOARD, id 9 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1575391/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
