I can confirm the kernel crashing with default parameters on my HP touchsmart tm2. It doesn't crash if I add "radeon.modeset=10 to the kernel params but vgaswitcheroo doesn't work. Here's the crash dump:
28 21:00:30 touchy-feely kernel: [ 0.000000] ------------[ cut here ]------------ Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] WARNING: at /build/buildd/linux-2.6.38/drivers/pci/dmar.c:634 warn_invalid_dmar+0x98/0xb0() Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] Hardware name: HP TouchSmart tm2 Notebook PC Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] Your BIOS is broken; DMAR reported at address 0! Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] BIOS vendor: Insyde; Ver: F.0B; Product Version: 049E100000200800000120000 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] Modules linked in: Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.38-8-generic > > Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12a4a28>] ? > warn_invalid_dmar+0x98/0xb0 #42-Ubuntu Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] Call Trace: Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c104f912>] ? warn_slowpath_common+0x72/0xa0 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12a4a28>] ? warn_invalid_dmar+0x98/0xb0 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12a4a28>] ? warn_invalid_dmar+0x98/0xb0 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c104f9a2>] ? warn_slowpath_fmt_taint+0x32/0x40 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12a4a28>] ? warn_invalid_dmar+0x98/0xb0 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c17b5b6a>] ? check_zero_address+0x53/0x123 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12e1c93>] ? acpi_tb_verify_table+0x4b/0x4e Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c12e1bd5>] ? acpi_get_table_with_size+0x59/0xae Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c17b5c4c>] ? detect_intel_iommu+0x12/0x78 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c17930c0>] ? pci_iommu_alloc+0x35/0x5a Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c179e35c>] ? mem_init+0xe/0x26d Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c17a76d2>] ? __alloc_bootmem_node_nopanic+0x72/0x93 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c150717f>] ? printk+0x30/0x39 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c17abb64>] ? page_cgroup_init_flatmem+0xab/0xd9 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c178d638>] ? start_kernel+0x1b6/0x366 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c178d3d5>] ? pass_all_bootoptions+0x0/0xa Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] [<c178d0e0>] ? i386_start_kernel+0xe0/0xe8 Jul 28 21:00:30 touchy-feely kernel: [ 0.000000] ---[ end trace a7919e7f17c0a725 ]--- ** Attachment added: "kernel log: radeon crash" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/763909/+attachment/2243203/+files/kern.log ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763909 Title: 11.04 Wont Boot With Mobility Radeon HD 3400 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/763909/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
