mbp-nvidia-bl-dkms does not work with karmic when using kernel 2.6.31-1-generic x86_64

[ccarezza]

I have a MacBookPro 5.2 running karmic. I'm using the standard kernel package 2.6.31-1-generic x86_64 and mbp-nvidia-bl-dkms 0.21~jaunty

When I try to load mbp_nvidia_bl I get, in dmesg:

[ 499.028436] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
[ 499.028445] IP: [<ffffffff8129dfa8>] backlight_store_brightness+0xa8/0xd0
[ 499.028456] PGD 14617b067 PUD 14a4ef067 PMD 0
[ 499.028461] Oops: 0000 [#2] SMP
[ 499.028465] last sysfs file: /sys/devices/virtual/backlight/mbp_backlight/brightness
[ 499.028469] CPU 0
[ 499.028472] Modules linked in: mbp_nvidia_bl(+) nvidia(P) binfmt_misc ppdev bridge stp bnep nvidia_bl applesmc input_polldev coretemp hid_apple usbhid lp parport snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss b43 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer mac80211 snd_seq_device uvcvideo snd cfg80211 videodev v4l1_compat v4l2_compat_ioctl32 soundcore snd_page_alloc joydev bcm5974 i2c_nforce2 btusb led_class pcspkr ssb ohci1394 ieee1394 forcedeth fbcon tileblit font bitblit softcursor i915 drm i2c_algo_bit video output intel_agp
[ 499.028528] Pid: 5125, comm: bash Tainted: P D 2.6.31-1-generic #14-Ubuntu MacBookPro5,2
[ 499.028531] RIP: 0010:[<ffffffff8129dfa8>] [<ffffffff8129dfa8>] backlight_store_brightness+0xa8/0xd0
[ 499.028537] RSP: 0018:ffff88014a5e3e48 EFLAGS: 00010202
[ 499.028540] RAX: 0000000000000038 RBX: ffff880149dfd678 RCX: 000000000000000a
[ 499.028543] RDX: 0000000000000000 RSI: ffff88014a5e3e10 RDI: ffff880149dfd618
[ 499.028546] RBP: ffff88014a5e3e88 R08: 0000000000000028 R09: 000000000000000a
[ 499.028549] R10: 0000000000000000 R11: 0000000000000069 R12: 0000000000000002
[ 499.028552] R13: ffff880149dfd638 R14: ffff880149dfd618 R15: ffff880149dfd600
[ 499.028556] FS: 00007f17c1d3f6f0(0000) GS:ffff880028029000(0000) knlGS:0000000000000000
[ 499.028559] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 499.028562] CR2: 0000000000000040 CR3: 000000014a5cc000 CR4: 00000000000406b0
[ 499.028565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 499.028568] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 499.028571] Process bash (pid: 5125, threadinfo ffff88014a5e2000, task ffff8801461bc410)
[ 499.028574] Stack:
[ 499.028575] 0000000000000000 0000000000000001 ffff88014a5e3e88 ffff88014a4f7980
[ 499.028580] <0> ffff88014a5e3f48 ffff880149436500 ffffffff8178e6d0 ffff880149dfd688
[ 499.028585] <0> ffff88014a5e3e98 ffffffff8130f79b ffff88014a5e3ee8 ffffffff8117a290
[ 499.028591] Call Trace:
[ 499.028597] [<ffffffff8130f79b>] dev_attr_store+0x1b/0x20
[ 499.028603] [<ffffffff8117a290>] sysfs_write_file+0xe0/0x160
[ 499.028609] [<ffffffff81114ee8>] vfs_write+0xb8/0x1a0
[ 499.028613] [<ffffffff8111599c>] sys_write+0x4c/0x80
[ 499.028619] [<ffffffff81011fc2>] system_call_fastpath+0x16/0x1b
[ 499.028621] Code: 12 4c 89 ef e8 ba 48 27 00 eb af 0f 1f 84 00 00 00 00 00 4d 8d 77 18 89 43 88 4c 89 f7 e8 41 4b 27 00 48 8b 43 e0 48 85 c0 74 0e <48> 8b 40 08 48 85 c0 74 05 4c 89 ff ff d0 4c 89 f7 4d 63 f4 e8
[ 499.028664] RIP [<ffffffff8129dfa8>] backlight_store_brightness+0xa8/0xd0
[ 499.028669] RSP <ffff88014a5e3e48>
[ 499.028671] CR2: 0000000000000040
[ 499.028674] ---[ end trace 8e85fef35d483d20 ]---

If I boot using kernel 2.6.28-13-generic instead, no problem happens and I can control the LCD brightness normally.

[Ricky Campbell (cyberdork33)]

I don't think that package has been setup to work in karmic or if it
is even needed. Why are you trying to install it?

Ricky

On Jul 3, 2009, at 3:39 AM, ccarezza <email address hidden> wrote:

> Public bug reported:
>
> I have a MacBookPro 5.2 running karmic. I'm using the standard kernel
> package 2.6.31-1-generic x86_64 and mbp-nvidia-bl-dkms 0.21~jaunty
>
> When I try to load mbp_nvidia_bl I get, in dmesg:
>
> [ 499.028436] BUG: unable to handle kernel NULL pointer dereference
> at 0000000000000040
> [ 499.028445] IP: [<ffffffff8129dfa8>] backlight_store_brightness
> +0xa8/0xd0
> [ 499.028456] PGD 14617b067 PUD 14a4ef067 PMD 0
> [ 499.028461] Oops: 0000 [#2] SMP
> [ 499.028465] last sysfs file: /sys/devices/virtual/backlight/
> mbp_backlight/brightness
> [ 499.028469] CPU 0
> [ 499.028472] Modules linked in: mbp_nvidia_bl(+) nvidia(P)
> binfmt_misc ppdev bridge stp bnep nvidia_bl applesmc input_polldev
> coretemp hid_apple usbhid lp parport snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm
> snd_seq_dummy snd_seq_oss b43 snd_seq_midi snd_rawmidi
> snd_seq_midi_event snd_seq snd_timer mac80211 snd_seq_device
> uvcvideo snd cfg80211 videodev v4l1_compat v4l2_compat_ioctl32
> soundcore snd_page_alloc joydev bcm5974 i2c_nforce2 btusb led_class
> pcspkr ssb ohci1394 ieee1394 forcedeth fbcon tileblit font bitblit
> softcursor i915 drm i2c_algo_bit video output intel_agp
> [ 499.028528] Pid: 5125, comm: bash Tainted: P D 2.6.31-1-
> generic #14-Ubuntu MacBookPro5,2
> [ 499.028531] RIP: 0010:[<ffffffff8129dfa8>] [<ffffffff8129dfa8>]
> backlight_store_brightness+0xa8/0xd0
> [ 499.028537] RSP: 0018:ffff88014a5e3e48 EFLAGS: 00010202
> [ 499.028540] RAX: 0000000000000038 RBX: ffff880149dfd678 RCX:
> 000000000000000a
> [ 499.028543] RDX: 0000000000000000 RSI: ffff88014a5e3e10 RDI:
> ffff880149dfd618
> [ 499.028546] RBP: ffff88014a5e3e88 R08: 0000000000000028 R09:
> 000000000000000a
> [ 499.028549] R10: 0000000000000000 R11: 0000000000000069 R12: 0000000000000002
> [ 499.028552] R13: ffff880149dfd638 R14: ffff880149dfd618 R15:
> ffff880149dfd600
> [ 499.028556] FS: 00007f17c1d3f6f0(0000) GS:ffff880028029000(0000)
> knlGS:0000000000000000
> [ 499.028559] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 499.028562] CR2: 0000000000000040 CR3: 000000014a5cc000 CR4:
> 00000000000406b0
> [ 499.028565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 499.028568] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 499.028571] Process bash (pid: 5125, threadinfo ffff88014a5e2000,
> task ffff8801461bc410)
> [ 499.028574] Stack:
> [ 499.028575] 0000000000000000 0000000000000001 ffff88014a5e3e88
> ffff88014a4f7980
> [ 499.028580] <0> ffff88014a5e3f48 ffff880149436500
> ffffffff8178e6d0 ffff880149dfd688
> [ 499.028585] <0> ffff88014a5e3e98 ffffffff8130f79b
> ffff88014a5e3ee8 ffffffff8117a290
> [ 499.028591] Call Trace:
> [ 499.028597] [<ffffffff8130f79b>] dev_attr_store+0x1b/0x20
> [ 499.028603] [<ffffffff8117a290>] sysfs_write_file+0xe0/0x160
> [ 499.028609] [<ffffffff81114ee8>] vfs_write+...

[ccarezza (caetano-vision)]

  If I try to load the mbp_nvidia_bl.ko provided with the kernel it
  fails saying that could not identify my device. mbp-nvidia-bl-dkms
  has the changes necessary for my device identification, but does not
  work with the latest generic kernel provided in karmic.

  Caetano

Ricky Campbell writes:
> I don't think that package has been setup to work in karmic or if it
> is even needed. Why are you trying to install it?
>
>
> Ricky
>
> On Jul 3, 2009, at 3:39 AM, ccarezza <email address hidden> wrote:
>
> > Public bug reported:
> >
> > I have a MacBookPro 5.2 running karmic. I'm using the standard kernel
> > package 2.6.31-1-generic x86_64 and mbp-nvidia-bl-dkms 0.21~jaunty
> >
> > When I try to load mbp_nvidia_bl I get, in dmesg:
> >
> > [ 499.028436] BUG: unable to handle kernel NULL pointer dereference
> > at 0000000000000040
> > [ 499.028445] IP: [<ffffffff8129dfa8>] backlight_store_brightness
> > +0xa8/0xd0
> > [ 499.028456] PGD 14617b067 PUD 14a4ef067 PMD 0
> > [ 499.028461] Oops: 0000 [#2] SMP
> > [ 499.028465] last sysfs file: /sys/devices/virtual/backlight/
> > mbp_backlight/brightness
> > [ 499.028469] CPU 0
> > [ 499.028472] Modules linked in: mbp_nvidia_bl(+) nvidia(P)
> > binfmt_misc ppdev bridge stp bnep nvidia_bl applesmc input_polldev
> > coretemp hid_apple usbhid lp parport snd_hda_codec_realtek
> > snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm
> > snd_seq_dummy snd_seq_oss b43 snd_seq_midi snd_rawmidi
> > snd_seq_midi_event snd_seq snd_timer mac80211 snd_seq_device
> > uvcvideo snd cfg80211 videodev v4l1_compat v4l2_compat_ioctl32
> > soundcore snd_page_alloc joydev bcm5974 i2c_nforce2 btusb led_class
> > pcspkr ssb ohci1394 ieee1394 forcedeth fbcon tileblit font bitblit
> > softcursor i915 drm i2c_algo_bit video output intel_agp
> > [ 499.028528] Pid: 5125, comm: bash Tainted: P D 2.6.31-1-
> > generic #14-Ubuntu MacBookPro5,2
> > [ 499.028531] RIP: 0010:[<ffffffff8129dfa8>] [<ffffffff8129dfa8>]
> > backlight_store_brightness+0xa8/0xd0
> > [ 499.028537] RSP: 0018:ffff88014a5e3e48 EFLAGS: 00010202
> > [ 499.028540] RAX: 0000000000000038 RBX: ffff880149dfd678 RCX:
> > 000000000000000a
> > [ 499.028543] RDX: 0000000000000000 RSI: ffff88014a5e3e10 RDI:
> > ffff880149dfd618
> > [ 499.028546] RBP: ffff88014a5e3e88 R08: 0000000000000028 R09:
> > 000000000000000a
> > [ 499.028549] R10: 0000000000000000 R11: 0000000000000069 R12: 0000000000000002
> > [ 499.028552] R13: ffff880149dfd638 R14: ffff880149dfd618 R15:
> > ffff880149dfd600
> > [ 499.028556] FS: 00007f17c1d3f6f0(0000) GS:ffff880028029000(0000)
> > knlGS:0000000000000000
> > [ 499.028559] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> > [ 499.028562] CR2: 0000000000000040 CR3: 000000014a5cc000 CR4:
> > 00000000000406b0
> > [ 499.028565] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [ 499.028568] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > [ 499.028571] Process bash (pid: 5125, threadinfo ffff88014a5e2000,
> > task ffff8801461bc410)
> > [ 499.028574] Stack:
> > [ 499.028575] 0000000000000000 0000000000000001 ffff88014a5e3e...

[Mario Schwalbe (schwalbe)]

Recent Linus Torvald's git tree finally contains support for the MacBook 5,1 and MacBookPro5,1. These are the patches I sent upstream in December 2008, so don't expect your model to be supported very soon. To get support now, you'll have to use the mbp-nvidia-bl-dkms package, which seems to be buggy. I'll have a look at it tomorrow.

ciao,
Mario

[Mario Schwalbe (schwalbe)]

Uploaded new fixed version. You might also use the nvidia-bl-dkms package. Unfortunately, it's known to not work on a MacBookPro5,1. But I'd like to get reports for those most recent machines.

[ccarezza (caetano-vision)]

  Now mbp-nvidia-bl is working. I tested with 2.6.31-2-generic x86_64.

  Regarding nvidia-bl , it loads, but does not works. Nothing happens
  with the backlight, regardless the value I use.

  Thanks

Mario Schwalbe writes:
> Uploaded new fixed version. You might also use the nvidia-bl-dkms
> package. Unfortunately, it's known to not work on a MacBookPro5,1. But
> I'd like to get reports for those most recent machines.
>

--
  Caetano Jimenez Carezzato <email address hidden>

            $ perl -e 'while (42) {fork}'

"Toda a realidade se resume ao ponto" -- Escola de Pitágoras

 Computers are like air conditioners. Both stop working, if you open
 windows.
                -- Adam Heath

[David Stansby (dstansby-deactivatedaccount)]

Is there any chance you could see if this is working in Lucid?