Nouveau - Jul 2017 - [Bug 101778] New: Kernel Error on Lenovo P51 when setting graphics to hybrid (Nvidia Optimus with intel+nvidia)

https://bugs.freedesktop.org/show_bug.cgi?id=101778

            Bug ID: 101778
           Summary: Kernel Error on Lenovo P51 when setting graphics to
                    hybrid (Nvidia Optimus with intel+nvidia)
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: Development at Geekparadise.de
        QA Contact: xorg-team at lists.x.org

Hi,

im using a new Lenovo Thinkpad P51 that uses Nvidia Optimus. It has a
integrated Intel graphic (Intel® HD Graphics 630) and a descrete Nvidia graphic
(Nvidia Quadro M1200). The Thinkpad is used in combination with a Lenovo
ThinkPad Workstation Dock (Docking Station).

My OS is Debian Buster (Debian Testing).

When using Nouveau and i915 as drivers while using both graphic cards, a kernel
error occurs (bios is set to hybrid graphics):

---[ end trace 0f5b1e9bbdb82fb3 ]---
 ? system_call_fast_compare_end+0xc/0x9b
 ? SyS_ioctl+0x74/0x80
 ? do_munmap+0x353/0x430
 ? do_vfs_ioctl+0x9f/0x600
 ? nouveau_drm_ioctl+0x66/0xc0 [nouveau]
 ? signal_setup_done+0x67/0xb0
 ? drm_gem_handle_create+0x40/0x40 [drm]
 ? drm_ioctl+0x1ef/0x440 [drm]
 ? drm_gem_handle_delete+0x57/0x80 [drm]
 ? drm_gem_object_release_handle+0x50/0x90 [drm]
 ? nouveau_gem_object_del+0x8d/0xe0 [nouveau]
 ? ttm_bo_release_list+0xc8/0x1f0 [ttm]
 ? nouveau_bo_del_ttm+0x77/0x80 [nouveau]
 ? __warn+0xbe/0xe0
 ? dump_stack+0x5c/0x78
Call Trace:
Hardware name: LENOVO 20HH0014GE/20HH0014GE, BIOS N1UET31W (1.05 ) 02/13/2017
CPU: 7 PID: 3782 Comm: Xorg Tainted: P           O    4.11.0-1-amd64 #1 Debian
4.11.6-1
 ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd
ahci libahci psmouse e1000e libata xhci_pci ptp i2c_i801 pps_core xhci_hcd
rtsx_pci nvme mfd_core nvme_core scsi_mod usbcore usb_common thermal i2c_hid
hid
 mxm_wmi snd_hda_codec_realtek rtsx_pci_ms ttm kvm_intel snd_hda_codec_generic
drm_kms_helper memstick kvm joydev cfg80211 snd_hda_intel drm snd_hda_codec
irqbypass i2c_algo_bit efi_pstore intel_cstate evdev snd_hda_core snd_hwdep
mei_me idma64 intel_
Modules linked in: ctr ccm acpi_call(O) veth xt_nat ipt_MASQUERADE
nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo
xt_addrtype br_netfilter bridge stp llc overlay ip6t_REJECT nf_reject_ipv6
nf_conntrack_ipv6 nf_defrag_ipv6 ip
WARNING: CPU: 7 PID: 3782 at
/build/linux-C5oXKu/linux-4.11.6/drivers/gpu/drm/nouveau/nouveau_bo.c:137
nouveau_bo_del_ttm+0x77/0x80 [nouveau]
------------[ cut here ]------------

[   28.615917] Oops: 0000 [#1] SMP
[   28.615924] Modules linked in: cmac ip6t_REJECT nf_reject_ipv6
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipt_REJECT
nf_reject_ipv4 xt_tcpudp xt_conntrack iptable_filter iptable_nat
nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_n$
[   28.616065]  memstick ttm efi_pstore drm_kms_helper snd_hda_codec joydev
evdev snd_hda_core mei_me snd_hwdep drm snd_pcm idma64 iTCO_wdt pcspkr
serio_raw efivars iTCO_vendor_support snd_timer sg i2c_algo_bit mei shpchp
intel_pch_thermal intel_lpss_$
[   28.616210]  nvme rtsx_pci mfd_core nvme_core usbcore scsi_mod usb_common
thermal i2c_hid hid
[   28.616230] CPU: 0 PID: 57 Comm: kworker/0:1 Tainted: P           O   
4.11.0-1-amd64 #1 Debian 4.11.6-1
[   28.616248] Hardware name: LENOVO 20HH0014GE/20HH0014GE, BIOS N1UET31W (1.05
) 02/13/2017
[   28.616266] Workqueue: events_long drm_dp_mst_link_probe_work
[drm_kms_helper]
[   28.616280] task: ffff9e947fd92100 task.stack: ffffb20306494000
[   28.616294] RIP: 0010:drm_fb_helper_add_one_connector+0x17/0xd0
[drm_kms_helper]
[   28.616308] RSP: 0018:ffffb20306497c60 EFLAGS: 00010202
[   28.616319] RAX: 0000000000000000 RBX: ffff9e946c19c010 RCX:
0000000000000000
[   28.616333] RDX: ffff9e947cfe8c58 RSI: ffff9e946c19c010 RDI:
0000000000000000
[   28.616347] RBP: ffff9e946c19c010 R08: ffff9e946c1050e0 R09:
0000000000000000
[   28.616360] R10: ffffb20306497c68 R11: 0000000000000001 R12:
ffff9e947dc7c010
[   28.616374] R13: 0000000000000001 R14: ffff9e947a81a780 R15:
ffff9e947dc7c000
[   28.616390] FS:  0000000000000000(0000) GS:ffff9e94af400000(0000)
knlGS:0000000000000000
[   28.616412] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.616424] CR2: 0000000000000008 CR3: 0000000400209000 CR4:
00000000003406f0
[   28.616438] Call Trace:
[   28.616463]  ? nv50_mstm_register_connector+0x2c/0x50 [nouveau]
[   28.616477]  ? drm_dp_add_port+0x32d/0x460 [drm_kms_helper]
[   28.616501]  ? g94_i2c_aux_fini.isra.0+0x27/0x40 [nouveau]
[   28.616523]  ? g94_i2c_aux_xfer+0x6a2/0x7d0 [nouveau]
[   28.616544]  ? nvkm_i2c_aux_release+0x42/0x50 [nouveau]
[   28.616569]  ? nouveau_connector_aux_xfer+0x7f/0xc0 [nouveau]
[   28.616582]  ? drm_dp_dpcd_access+0xee/0x120 [drm_kms_helper]
[   28.616595]  ? drm_dp_send_link_address+0x16b/0x1f0 [drm_kms_helper]
[   28.616610]  ? drm_dp_check_and_send_link_address+0xab/0xb0 [drm_kms_helper]
[   28.616625]  ? drm_dp_mst_link_probe_work+0x4a/0x80 [drm_kms_helper]
[   28.616638]  ? process_one_work+0x197/0x430
[   28.616647]  ? worker_thread+0x4d/0x490
[   28.616656]  ? kthread+0xfc/0x130
[   28.616664]  ? process_one_work+0x430/0x430
[   28.616673]  ? kthread_create_on_node+0x70/0x70
[   28.616683]  ? ret_from_fork+0x26/0x40
[   28.616691] Code: bf f4 ff ff ff e9 7b ff ff ff 66 2e 0f 1f 84 00 00 00 00
00 0f 1f 44 00 00 31 c0 80 3d 72 76 00 00 00 74 6b 41 54 55 48 89 f5 53
<48> 8b
47 08 48 89 fb 48 8b 80 08 02 00 00 48 a9 f8 ff ff ff 74
[   28.616741] RIP: drm_fb_helper_add_one_connector+0x17/0xd0 [drm_kms_helper]
RSP: ffffb20306497c60
[   28.616757] CR2: 0000000000000008
[   28.621441] ---[ end trace f1588c8aea537ee6 ]---

When setting the graphic card to the disrecete nvidia card everything works
fine.

Also see https://bugzilla.kernel.org/show_bug.cgi?id=196341.

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https://bugs.freedesktop.org/show_bug.cgi?id=101778

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Well, on the up side, MST is getting properly detected now. On the down side,
it oopses.

Ignoring the WARNING for a minute, the oops is in

nv50_mstm_register_connector calling drm_fb_helper_add_one_connector.

The Quadro M1200 appears to be a GM107 based on pci.ids. Can you double-check? 

$ lspci -nn -d 10de:

Also can you supply the full dmesg from boot up to the oops, having booted with
nouveau.debug=debug drm.debug=0x1e ?

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--- Comment #2 from Development at Geekparadise.de ---
Created attachment 132668
  --> https://bugs.freedesktop.org/attachment.cgi?id=132668&action=edit
/var/log/kernel.log

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--- Comment #3 from Development at Geekparadise.de ---
Created attachment 132669
  --> https://bugs.freedesktop.org/attachment.cgi?id=132669&action=edit
/var/log/messages.log

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--- Comment #4 from Development at Geekparadise.de ---
$ lspci -nn -d 10de:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM107GLM [Quadro
M1200 Mobile] [10de:13b6] (rev a2)

The logs are attached, I hope they help :)

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--- Comment #5 from Development at Geekparadise.de ---
I encountered two more bugs:
1) after undocking and redocking, the external displays are gone
2) the internal display flickers after standby

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--- Comment #6 from Josef Larsson <josef.lar at gmail.com> ---
Same problem here with my Thinkpad P51 with docking station.

If I add a check for assignment of drm->fbcon in
nv50_mstm_register_connector,
the system hangs instead upon start of Xorg, so since my line of code has this
effect, I guess drm->fbcon == 0?

if (drm->fbcon)
    drm_fb_helper_add_one_connector(&drm->fbcon->helper, connector);

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--- Comment #7 from Josef Larsson <josef.lar at gmail.com> ---
The set up with the docking station does not work really well with the
proprietary nvidia driver either. When switching between VT and Xorg all
monitors start blinking and changing resolution etc as if they were just
connected, and the display manager does not seem to be able to resolve the
situation. The Lenovo thinkpad docking station is in other words quite useless
regardless of which driver I choose...

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--- Comment #8 from Josef Larsson <josef.lar at gmail.com> ---
Same (kernel oops) problem with a different docking station which uses a
thunderbolt connector instead.

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--- Comment #9 from Josef Larsson <josef.lar at gmail.com> ---
Created attachment 135298
  --> https://bugs.freedesktop.org/attachment.cgi?id=135298&action=edit
This makes the system stable, but does not fix detection of displays

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Karol Herbst <karolherbst at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #10 from Karol Herbst <karolherbst at gmail.com> ---
Is this still an issue? We fixed a lot of DP and hybrid GPU stuff since 4.11
and I would hope that this is already fixed?

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Josef Larsson <josef.lar at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEEDINFO                    |RESOLVED

--- Comment #11 from Josef Larsson <josef.lar at gmail.com> ---
Yes, this is fixed now. Running Gnome on Wayland with an external monitor
connected to the DP port on the docking station without instabilities.

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