[    0.798888] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.940710] ------------[ cut here ]------------
[    0.940759] WARNING: at drivers/gpu/drm/i915/i915_gem.c:1021 __wait_seqno+0x4bd/0x4e0 [i915]()
[    0.940763] Hardware name: HP G62 Notebook PC
[    0.940766] Modules linked in: i915(+) video button i2c_algo_bit intel_agp intel_gtt drm_kms_helper drm i2c_core
[    0.940785] Pid: 57, comm: modprobe Not tainted 3.8.4-1-ARCH #1
[    0.940788] Call Trace:
[    0.940799]  [<ffffffff8105750f>] warn_slowpath_common+0x7f/0xc0
[    0.940806]  [<ffffffff8105756a>] warn_slowpath_null+0x1a/0x20
[    0.940842]  [<ffffffffa008d7dd>] __wait_seqno+0x4bd/0x4e0 [i915]
[    0.940890]  [<ffffffffa00cb1b1>] ? ring_write_tail+0x21/0x30 [i915]
[    0.940936]  [<ffffffffa00cc9d5>] ? intel_ring_advance+0x45/0x50 [i915]
[    0.940973]  [<ffffffffa008e10f>] i915_wait_seqno+0x7f/0xa0 [i915]
[    0.941019]  [<ffffffffa00cc761>] intel_ring_idle+0x41/0x70 [i915]
[    0.941064]  [<ffffffffa00c5fa1>] intel_enable_gt_powersave+0x441/0x810 [i915]
[    0.941106]  [<ffffffffa00ad821>] intel_modeset_init_hw+0x41/0x60 [i915]
[    0.941148]  [<ffffffffa00af116>] intel_modeset_gem_init+0x16/0x30 [i915]
[    0.941182]  [<ffffffffa007f529>] i915_driver_load+0xb79/0xe00 [i915]
[    0.941200]  [<ffffffffa0019976>] drm_get_pci_dev+0x186/0x2c0 [drm]
[    0.941233]  [<ffffffffa007a65b>] i915_pci_probe+0x3b/0x90 [i915]
[    0.941241]  [<ffffffff8129fa0b>] local_pci_probe+0x4b/0x80
[    0.941247]  [<ffffffff812a02d1>] pci_device_probe+0x111/0x120
[    0.941255]  [<ffffffff8135a68b>] driver_probe_device+0x8b/0x3a0
[    0.941261]  [<ffffffff8135aa4b>] __driver_attach+0xab/0xb0
[    0.941267]  [<ffffffff8135a9a0>] ? driver_probe_device+0x3a0/0x3a0
[    0.941272]  [<ffffffff813586bd>] bus_for_each_dev+0x5d/0xa0
[    0.941278]  [<ffffffff8135a0fe>] driver_attach+0x1e/0x20
[    0.941284]  [<ffffffff81359c20>] bus_add_driver+0x1a0/0x290
[    0.941289]  [<ffffffffa0104000>] ? 0xffffffffa0103fff
[    0.941295]  [<ffffffff8135b147>] driver_register+0x77/0x170
[    0.941302]  [<ffffffff810ed1b7>] ? tracepoint_module_notify+0x117/0x220
[    0.941306]  [<ffffffffa0104000>] ? 0xffffffffa0103fff
[    0.941313]  [<ffffffff812a03cb>] __pci_register_driver+0x4b/0x50
[    0.941326]  [<ffffffffa0019bca>] drm_pci_init+0x11a/0x130 [drm]
[    0.941331]  [<ffffffffa0104000>] ? 0xffffffffa0103fff
[    0.941361]  [<ffffffffa0104066>] i915_init+0x66/0x68 [i915]
[    0.941367]  [<ffffffff8100215a>] do_one_initcall+0x12a/0x180
[    0.941375]  [<ffffffff810bf493>] load_module+0x1923/0x2180
[    0.941382]  [<ffffffff812907d0>] ? ddebug_proc_show+0x100/0x100
[    0.941389]  [<ffffffff810bfda2>] sys_init_module+0xb2/0x100
[    0.941398]  [<ffffffff814da81d>] system_call_fastpath+0x1a/0x1f
[    0.941402] ---[ end trace 9a8c83565bbc004b ]---
[    0.941406] [drm:ironlake_enable_rc6] *ERROR* failed to enable ironlake power power savings