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SubjectRe: [Intel-gfx] [PATCH 2/5] i915: Add native backlight control
Hi,

Now I'm getting this in my dmesg (1/5 and 2/5 still applied to -rc1):

ACPI: thermal control disabled
Non-volatile memory driver v1.3
Linux agpgart interface v0.103
agpgart-intel 0000:00:00.0: Intel 965GME/GLE Chipset
agpgart-intel 0000:00:00.0: detected gtt size: 524288K total, 262144K mappable
agpgart-intel 0000:00:00.0: detected 8192K stolen memory
agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000
[drm] Initialized drm 1.1.0 20060810
i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
i915 0000:00:02.0: setting latency timer to 64
ioremap error for 0x3f7c5000-0x3f7c8000, requested 0x10, got 0x0
i915 0000:00:02.0: irq 42 for MSI/MSI-X
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared
ACPI: Battery Slot [C245] (battery present)
------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x6e/0x83()
Hardware name: Compaq 610
sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight'
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.38-rc1+ #47
Call Trace:
[<c1026828>] ? warn_slowpath_common+0x65/0x7a
[<c10b9404>] ? sysfs_add_one+0x6e/0x83
[<c10268a1>] ? warn_slowpath_fmt+0x26/0x2a
[<c10b9404>] ? sysfs_add_one+0x6e/0x83
[<c10b9b6d>] ? create_dir+0x56/0x89
[<c10b9c1f>] ? sysfs_create_dir+0x7f/0x94
[<c1111b14>] ? kobject_add_internal+0xab/0x15a
[<c1111c74>] ? kobject_add_varg+0x31/0x3d
[<c1111cea>] ? kobject_add+0x43/0x49
[<c11c1e14>] ? device_add+0x8f/0x4c0
[<c101dd19>] ? complete_all+0x35/0x3f
[<c11c7983>] ? device_pm_init+0x26/0x37
[<c11c2257>] ? device_register+0x12/0x15
[<c11354a1>] ? backlight_device_register+0xe4/0x133
[<c11b141a>] ? intel_panel_setup_backlight+0x58/0xa1
[<c11a74b1>] ? intel_modeset_init+0xa46/0xbca
[<c119297c>] ? i915_driver_load+0xab5/0xc0c
[<c1189140>] ? drm_get_pci_dev+0x130/0x20f
[<c12e3c47>] ? i915_pci_probe+0xd/0xf
[<c1122356>] ? local_pci_probe+0xe/0x10
[<c11229a4>] ? pci_device_probe+0x43/0x66
[<c11c3b43>] ? driver_probe_device+0x81/0xfd
[<c11c3c02>] ? __driver_attach+0x43/0x5f
[<c11c3533>] ? bus_for_each_dev+0x3d/0x67
[<c11c39fb>] ? driver_attach+0x14/0x16
[<c11c3bbf>] ? __driver_attach+0x0/0x5f
[<c11c2fc6>] ? bus_add_driver+0x9d/0x1cd
[<c11c3e2f>] ? driver_register+0x79/0xe0
[<c1122b69>] ? __pci_register_driver+0x38/0x95
[<c118924c>] ? drm_pci_init+0x2d/0x85
[<c11836b7>] ? drm_init+0x4c/0x4e
[<c14df3de>] ? i915_init+0x67/0x69
[<c100115e>] ? do_one_initcall+0x71/0x113
[<c14df377>] ? i915_init+0x0/0x69
[<c14c530a>] ? kernel_init+0x109/0x185
[<c14c5201>] ? kernel_init+0x0/0x185
[<c1002cb6>] ? kernel_thread_helper+0x6/0x10
---[ end trace a1a080aaf8d35408 ]---
kobject_add_internal failed for intel_backlight with -EEXIST, don't try to register things with the same name in the same directory.
Pid: 1, comm: swapper Tainted: G W 2.6.38-rc1+ #47
Call Trace:
[<c1111b7a>] ? kobject_add_internal+0x111/0x15a
[<c1111b9b>] ? kobject_add_internal+0x132/0x15a
[<c1111c74>] ? kobject_add_varg+0x31/0x3d
[<c1111cea>] ? kobject_add+0x43/0x49
[<c11c1e14>] ? device_add+0x8f/0x4c0
[<c101dd19>] ? complete_all+0x35/0x3f
[<c11c7983>] ? device_pm_init+0x26/0x37
[<c11c2257>] ? device_register+0x12/0x15
[<c11354a1>] ? backlight_device_register+0xe4/0x133
[<c11b141a>] ? intel_panel_setup_backlight+0x58/0xa1
[<c11a74b1>] ? intel_modeset_init+0xa46/0xbca
[<c119297c>] ? i915_driver_load+0xab5/0xc0c
[<c1189140>] ? drm_get_pci_dev+0x130/0x20f
[<c12e3c47>] ? i915_pci_probe+0xd/0xf
[<c1122356>] ? local_pci_probe+0xe/0x10
[<c11229a4>] ? pci_device_probe+0x43/0x66
[<c11c3b43>] ? driver_probe_device+0x81/0xfd
[<c11c3c02>] ? __driver_attach+0x43/0x5f
[<c11c3533>] ? bus_for_each_dev+0x3d/0x67
[<c11c39fb>] ? driver_attach+0x14/0x16
[<c11c3bbf>] ? __driver_attach+0x0/0x5f
[<c11c2fc6>] ? bus_add_driver+0x9d/0x1cd
[<c11c3e2f>] ? driver_register+0x79/0xe0
[<c1122b69>] ? __pci_register_driver+0x38/0x95
[<c118924c>] ? drm_pci_init+0x2d/0x85
[<c11836b7>] ? drm_init+0x4c/0x4e
[<c14df3de>] ? i915_init+0x67/0x69
[<c100115e>] ? do_one_initcall+0x71/0x113
[<c14df377>] ? i915_init+0x0/0x69
[<c14c530a>] ? kernel_init+0x109/0x185
[<c14c5201>] ? kernel_init+0x0/0x185
[<c1002cb6>] ? kernel_thread_helper+0x6/0x10
[drm:intel_panel_setup_backlight] *ERROR* Failed to register backlight: -17
vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[drm] initialized overlay support
Console: switching to colour frame buffer device 170x48
fb0: inteldrmfb frame buffer device
drm: registered panic notifier
[drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

Thanks,
Ali



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