Thanks for the additional dmesg daemonx. [ 25.243600] nvidia 0000:01:00.0: enabling device (0000 -> 0003) [ 25.243608] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 25.243619] nvidia 0000:01:00.0: setting latency timer to 64 [ 25.243625] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 25.243660] NVRM: The NVIDIA GPU 0000:01:00.0 (PCI ID: 10de:0407) installed [ 25.243661] NVRM: in this system is not supported by the 270.41.06 NVIDIA Linux [ 25.243662] NVRM: graphics driver release. Please see 'Appendix A - [ 25.243663] NVRM: Supported NVIDIA GPU Products' in this release's README, [ 25.243664] NVRM: available on the Linux graphics driver download page at [ 25.243666] NVRM: www.nvidia.com. [ 25.243674] nvidia 0000:01:00.0: PCI INT A disabled [ 25.243682] nvidia: probe of 0000:01:00.0 failed with error -1 [ 25.243714] NVRM: The NVIDIA probe routine failed for 1 device(s). [ 25.243716] NVRM: None of the NVIDIA graphics adapters were initialized!
I zeroed in on the vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem and looked at the git commit history of the VGA Arbitrator. It is present in v2.6.32 and therefore it's presence isn't the cuplrit. I note that the nvidia drivers helpfully tells us that nvidia: probe of 0000:01:00.0 failed with error -1 -1 is symbolically known as -ENOPERM (see include/asm-generic/errno- base.h) but in this case is not accurate. Looking at the nvidia kernel interface source-code I see: else { nv_check_pci_config_space(nv, FALSE); if (rm_is_supported_device(sp, nv) != RM_OK) { nv_printf(NV_DBG_ERRORS, "NVRM: The NVIDIA GPU %02x:%02x.%x (PCI ID: %04x:%04x) installed\n" "NVRM: in this system is not supported by the %s NVIDIA Linux\n" "NVRM: graphics driver release. Please see 'Appendix A -\n" "NVRM: Supported NVIDIA GPU Products' in this release's README,\n" "NVRM: available on the Linux graphics driver download page at\n" "NVRM: www.nvidia.com.\n", nv->bus, nv->slot, PCI_FUNC(dev->devfn), nv->vendor_id, nv->device_id, NV_VERSION_STRING); goto err_not_supported; } so the crux is at: rm_is_supported_device(sp, nv) != RM_OK which is an Nvidia Resource Manager function: $ grep 'rm_is_supported_device' /proc/kallsyms f9e6fc68 t rm_is_supported_device [nvidia] which is contained in the binary blob 'nv-kernel.o' for which we don't have source code. grep -rn 'rm_is_supported_device' * nv.c:4773: if (rm_is_supported_device(sp, nv) != RM_OK) nv.h:618:BOOL NV_API_CALL rm_is_supported_device (nv_stack_t *, nv_state_t *); Binary file nv-kernel.o matches So this is an Nvidia issue with how Resource Manager compares the NV state pointer nvl->nv_state and the stack pointer sp. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/661248 Title: Nvidia GeForce 8600M GT doesn't work with nvidia-current 260 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs