Had a closer look at your Xorg.log: [ 25.862] (II) LoadModule: "r128" [ 25.863] (WW) Warning, couldn't open module r128 [ 25.863] (II) UnloadModule: "r128" [ 25.863] (II) Unloading r128 [ 25.896] (EE) Failed to load module "r128" (module does not exist, 0) [ 25.896] (II) LoadModule: "modesetting"
xorg tries to load the appropriate driver for your ATI Rage, wich is "r128". Since this driver is not found, it uses the generic "modesetting" driver, which in turn resorts to a 15bpp framebuffer. Just found out that the needed xserver-xorg-video-r128 package is no longer installed by default in Yakkety. Maybe this is also the case in Xenial. So the easy solution for you would be to "sudo apt-get install xserver-xorg-video-r128" and reboot. Maybe you get an accelerated 24bpp desktop again without needing a supplementary xorg.conf! >Since the dev had gotten back to me to post the screen shot, and then, >nothing posted/commented back about it, I've come to the conclusion that it >is just the image file itself that is a low spec/low res image. Other >backgrounds, like the "cosmos" one that changes images, some of them are >perfect, and others have this low resolution issue. Nope it is the other way round. The background image is 24bpp but the display driver has to show it on an 15/16bpp screen - it needs to reduce the colours somehow which makes the image appear blotchy. Icons don't have that many gradients which leaves them looking crisp on 15/16bpp. -- 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/1541082 Title: [PowerMac3,1] Blotchy GUI graphics for images Status in xorg package in Ubuntu: New Bug description: The background image and other image files are blotchy. --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: powerpc BootLog: fsck from util-linux 2.27.1 /dev/sda13: clean, 182266/1458176 files, 1099215/5826607 blocks CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None DistUpgraded: Fresh install DistroCodename: xenial DistroRelease: Ubuntu 16.04 DistroVariant: ubuntu DpkgLog: ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Rage 128 PRO AGP 4x TMDS [1002:5046] (prog-if 00 [VGA controller]) InstallationDate: Installed on 2016-01-31 (154 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha powerpc (20160123) Lsusb: Bus 002 Device 004: ID 047d:1029 Kensington Mouse*in*a*Box Optical Elite Bus 002 Device 003: ID 05ac:0220 Apple, Inc. Aluminum Keyboard (ANSI) Bus 002 Device 002: ID 05ac:1006 Apple, Inc. Hub in Aluminum Keyboard Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Package: xorg 1:7.7+13ubuntu3 PackageArchitecture: powerpc ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: root=UUID=4eb514e5-48d7-4e99-a402-5294c80e78cc ro quiet splash ProcVersionSignature: Ubuntu 4.4.0-24.43-powerpc-smp 4.4.10 Renderer: Software Tags: xenial ubuntu Uname: Linux 4.4.0-24-powerpc-smp ppc UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1 version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 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 2:1.18.3-1ubuntu2.2 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1541082/+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