User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729) Booting up kernel 2.6.31.6-162.fc12.i686.PAE on my ASRock A330GC mainboard with Intel Dual-Core Atom processor A330 and Intel 945GC + ICH7 chipset with no monitor plugged in (a server does not need a monitor) I get this waring in dmesg output: i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 i915 0000:00:02.0: setting latency timer to 64 ------------[ cut here ]------------ WARNING: at drivers/gpu/drm/drm_crtc_helper.c:1032 drm_helper_initial_config+0x3b/0x57 [drm_kms_helper]() (Not tainted) Hardware name: To Be Filled By O.E.M. No connectors reported connected with modes Modules linked in: i915(+) drm_kms_helper usb_storage drm i2c_algo_bit i2c_core video output Pid: 110, comm: modprobe Not tainted 2.6.31.6-162.fc12.i686.PAE #1 Call Trace: [<c043db1b>] warn_slowpath_common+0x70/0x87 [<f7fc6e0c>] ? drm_helper_initial_config+0x3b/0x57 [drm_kms_helper] [<c043db70>] warn_slowpath_fmt+0x29/0x2c [<f7fc6e0c>] drm_helper_initial_config+0x3b/0x57 [drm_kms_helper] [<f8007675>] i915_driver_load+0xb1b/0xba1 [i915] [<f7f8921a>] drm_get_dev+0x2da/0x3b1 [drm] [<f80234b6>] i915_pci_probe+0x12/0x98 [i915] [<c05af1a0>] local_pci_probe+0x13/0x15 [<c05afc3d>] pci_device_probe+0x48/0x6b [<c063aafa>] driver_probe_device+0xbc/0x1b8 [<c063ac3e>] __driver_attach+0x48/0x64 [<c063a183>] bus_for_each_dev+0x42/0x6c [<c063a8f8>] driver_attach+0x19/0x1b [<c063abf6>] ? __driver_attach+0x0/0x64 [<c063a647>] bus_add_driver+0xd0/0x211 [<c059df3c>] ? kset_find_obj+0x23/0x4f [<c063ae93>] driver_register+0x7e/0xe5 [<c05afdff>] __pci_register_driver+0x3d/0x9a [<f7f85571>] drm_init+0x62/0xba [drm] [<f8037000>] ? i915_init+0x0/0x48 [i915] [<f8037046>] i915_init+0x46/0x48 [i915] [<c040305b>] do_one_initcall+0x51/0x13f [<c0462ea7>] sys_init_module+0xac/0x1bd [<c0408f9b>] sysenter_do_call+0x12/0x28 ---[ end trace 9cf3ad6febedbb1c ]--- [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 Reproducible: Always Steps to Reproduce: 1. Reboot system 2. look at dmesg output
Confirmed on like system: MSI Wind Nettop 100 (Intel Atom 330) 2.6.31.6-166.fc12.x86_64 ------------[ cut here ]------------ WARNING: at drivers/gpu/drm/drm_crtc_helper.c:1032 drm_helper_initial_config+0x46/0x61 [drm_kms_helper]() (Not tainted) Hardware name: MS-7418 No connectors reported connected with modes Modules linked in: i915(+) drm_kms_helper drm i2c_algo_bit i2c_core video output Pid: 140, comm: work_for_cpu Not tainted 2.6.31.6-166.fc12.x86_64 #1 Call Trace: [<ffffffff810516f4>] warn_slowpath_common+0x84/0x9c [<ffffffff81051763>] warn_slowpath_fmt+0x41/0x43 [<ffffffffa0053320>] drm_helper_initial_config+0x46/0x61 [drm_kms_helper] [<ffffffffa005a850>] i915_driver_load+0xb1b/0xba8 [i915] [<ffffffffa0029486>] drm_get_dev+0x36e/0x46f [drm] [<ffffffff81063b56>] ? do_work_for_cpu+0x0/0x2a [<ffffffffa0079ca4>] i915_pci_probe+0x15/0xd5 [i915] [<ffffffff81210311>] local_pci_probe+0x17/0x1b [<ffffffff81063b6e>] do_work_for_cpu+0x18/0x2a [<ffffffff81067781>] kthread+0x91/0x99 [<ffffffff81012daa>] child_rip+0xa/0x20 [<ffffffff810676f0>] ? kthread+0x0/0x99 [<ffffffff81012da0>] ? child_rip+0x0/0x20 ---[ end trace afac59a7c55e7a6d ]---
2.6.31.12-174.2.3.fc12.i686: [drm] Initialized drm 1.1.0 20060810 i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 mtrr: type mismatch for e0000000,10000000 old: write-back new: write-combining [drm] MTRR allocation failed. Graphics performance may suffer. ------------[ cut here ]------------ WARNING: at drivers/gpu/drm/drm_crtc_helper.c:1032 drm_helper_initial_config+0x3b/0x57 [drm_kms_helper]() (Not tainted) Hardware name: X7SLA No connectors reported connected with modes Modules linked in: i915(+) drm_kms_helper drm i2c_algo_bit i2c_core video output Pid: 111, comm: modprobe Not tainted 2.6.31.12-174.2.3.fc12.i686 #1 Call Trace: [<c0436dbb>] warn_slowpath_common+0x70/0x87 [<f7da8e0c>] ? drm_helper_initial_config+0x3b/0x57 [drm_kms_helper] [<c0436e10>] warn_slowpath_fmt+0x29/0x2c [<f7da8e0c>] drm_helper_initial_config+0x3b/0x57 [drm_kms_helper] [<f7de9616>] i915_driver_load+0xacb/0xb51 [i915] [<f7d89102>] drm_get_dev+0x2da/0x3b1 [drm] [<f7e0551e>] i915_pci_probe+0x12/0x9e [i915] [<c05a8614>] local_pci_probe+0x13/0x15 [<c05a90b1>] pci_device_probe+0x48/0x6b [<c062c052>] driver_probe_device+0xbc/0x1b8 [<c062c196>] __driver_attach+0x48/0x64 [<c062b6db>] bus_for_each_dev+0x42/0x6c [<c062be50>] driver_attach+0x19/0x1b [<c062c14e>] ? __driver_attach+0x0/0x64 [<c062bb9f>] bus_add_driver+0xd0/0x211 [<c0597530>] ? kset_find_obj+0x23/0x4f [<c062c3eb>] driver_register+0x7e/0xe5 [<c05a9273>] __pci_register_driver+0x3d/0x9a [<f7d8546d>] drm_init+0x62/0xba [drm] [<f7cfe000>] ? i915_init+0x0/0x48 [i915] [<f7cfe046>] i915_init+0x46/0x48 [i915] [<c0401143>] do_one_initcall+0x51/0x13f [<c045be1e>] sys_init_module+0xac/0x1be [<c040365c>] syscall_call+0x7/0xb ---[ end trace 24c94ec72baf571c ]--- [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
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