This bug APPEARS to have been fixed in the latest Ubuntu trusty kernel Linux version 3.13.0-63-generic
So instead of the error: pci 0000:00:07.3: address space collision: [io 0x1000-0x103f] conflicts with ACPI PM1a_EVT_BLK we now get this message : pci 0000:00:07.3: quirk: [io 0x1000-0x103f] claimed by PIIX4 ACPI pci 0000:00:07.3: quirk: [io 0x1040-0x104f] claimed by PIIX4 SMB Could someone please confirm what the original "address space collision" message meant and that the latest kernel HAS fixed it Thanks for your help Will -- 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/1478539 Title: pci ... address space collision: conflicts with ACPI PM1a_EVT_BLK Status in linux package in Ubuntu: Incomplete Bug description: On booting the latest Ubuntu Trusty kernel linux- image-3.13.0-58-generic (#97~precise1-Ubuntu) - I'm running Ubuntu 12.04.5 - I get this error in /var/log/kern.log (& syslog) : pci 0000:00:07.3: address space collision: [io 0x1000-0x103f] conflicts with ACPI PM1a_EVT_BLK [??? 0x00001000-0x00001003 flags 0x80000000] Does this matter? Looks like it COULD cause trouble. Would it ? To be on the safe side I've gone back to 3.13.0-57 ( #95~precise1-Ubuntu ) Running Ubuntu 12.04.5 on VMware To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1478539/+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