OK so it's a fairly long time since anyone has said anything thing about this problem. I found a resolution after reading about the symtoms online. I have a G5 dual without the issues and a Emac G4 single without the issues. However my G4 1.5 macmini would constantly freeze up. So the "fix" is to enter at install... live video=offb:off video=radeonfb:off radeon.modeset=1 radeon.agp.mode=-1 after install and reboot at yaboot screen enter... Linux video=offb:off video=radeon.modeset=1 radeon.agpmode=-1
This works on the G4 mini but requires the (after install) line everytime you reboot the computer.Not so much a fix but rather a control measure and a little bit of a hassle but it does work. I havn't tried it on my dual G4's or any other mac than the emac G4 but i suspect any card based mac doed not need it just the ones with the graphics on the motherboard (radeon) BTW i want to thank all peoples who work hard to bring us users the various Linux's for the powermacs. Up until recently you have kept these machines alive and worthwhile. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1571416 Title: System freezes shortly after reaching the desktop (Ubuntu MATE 16.04, PowerPC) Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Bug description: The freeze happens every time unless I use "radeon.agpmode=-1" as a kernel parameter. Affected machines: PowerBook G4 5,6 + PowerMac G5 7,3 (w. "ATI Radeon 9600 AP (AGP)". ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-18-powerpc-smp 4.4.0-18.34 ProcVersionSignature: Ubuntu 4.4.0-18.34-powerpc-smp 4.4.6 Uname: Linux 4.4.0-18-powerpc-smp ppc ApportVersion: 2.20.1-0ubuntu2 Architecture: powerpc AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperVersion: 1.373 CurrentDesktop: MATE Date: Sun Apr 17 21:08:40 2016 IwConfig: lo no wireless extensions. enP2p36s15f0 no wireless extensions. LiveMediaBuild: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release powerpc (20160417.1) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: ro ramdisk_size=1048576 file=/cdrom/preseed/username.seed boot=casper quiet --- radeon.agpmode=-1 RelatedPackageVersions: linux-restricted-modules-4.4.0-18-powerpc-smp N/A linux-backports-modules-4.4.0-18-powerpc-smp N/A linux-firmware 1.157 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1571416/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp