Public bug reported: Dear maintainer,
AGP device is set to "0x" mode resulting in extremely slow X. Could easily be mistaken for a "freeze" or "hang" as mouse moves minutes after physically moving it. Replicates always. Repeats on two machines with identical Video Card. No change from Ubuntu 12.04 PPC 3.2.0-23 through 3.2.0-26 Problem persists before and after downgrading Mesa to 7.11 Workarounds found: Disable DRI or ForcePCIMode For selfish concerns, I would like to be able to use AGP aperture to take advantage of System RAM. This is ignored when PCI mode is forced. Beyond that, the nature of the problem results in initial install booting to "hung" or extremely slow X since DRI is enabled by default. Possibly relevant previously proposed patch: http://lists.freedesktop.org/archives/dri- devel/2011-November/016101.html Attempts that did not help: install linux-firmware-nonfree force different AGPMode Forum discussing reference: http://ubuntuforums.org/showthread.php?t=2013307 Summary of relevant (Speculated) messages: dmesg | grep AGP [ 0.585628] Linux agpgart interface v0.103 [ 29.655997] agpgart-uninorth 0000:00:0b.0: Apple UniNorth/Pangea chipset [ 29.658518] agpgart-uninorth 0000:00:0b.0: configuring for size idx: 64 [ 29.736441] agpgart-uninorth 0000:00:0b.0: AGP aperture is 256M @ 0x0 [ 43.502188] agpgart: Couldn't find an AGP VGA controller. [ 43.502261] agpgart-uninorth 0000:00:0b.0: putting AGP V2 device into 0x mode dmesg | grep -i vga [ 0.047384] vgaarb: loaded [ 32.545041] vgaarb: this pci device is not a vga device [ 33.354151] vgaarb: this pci device is not a vga device [ 33.964274] agpgart: Couldn't find an AGP VGA controller. >From Xorg.0.log [ 265.172] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025 [ 265.172] (EE) R128(0): Idle timed out, resetting engine... [ 282.882] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025 [ 282.882] (EE) R128(0): Idle timed out, resetting engine... [ 298.704] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025 [ 298.705] (EE) R128(0): Idle timed out, resetting engine... EndSummary Thanks in advance. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1023975 Title: PPC R128 - AGP V2 device into 0x mode - Xorg Freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1023975/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
