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[Artur Dwornik <artur.dwornik@xxxxxxxxx>]

It looks like this bug is affecting me.  Everything works fine, unless
machine goes into suspend mode, then it just hangs.

This are messages since machine was suspended:
----------------
[  588.442408] vgaarb: this pci device is not a vga device
[  588.667341] wlan0: deauthenticating from 00:21:29:8b:ba:f5 by local choice (Reason: 3=DEAUTH_LEAVING)
[  588.677027] cfg80211: Calling CRDA to update world regulatory domain
[  588.685198] cfg80211: World regulatory domain updated:
[  588.685206] cfg80211:  DFS Master region: unset  
[  588.685209] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  588.685214] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  588.685219] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  588.685222] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[  588.685225] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  588.685229] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  588.722477] vgaarb: this pci device is not a vga device
^@^@^@^@^@^@^@^@^@
-------------------

Everything works fine if discrete card is disabled.

lspci
-------------
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Intel Corporation Wireless 3160 (rev 93)
03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
-------------

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to ubuntu-drivers-common in Ubuntu.
https://bugs.launchpad.net/bugs/1381175

Title:
  vgaarb module not patched

Status in ubuntu-drivers-common package in Ubuntu:
  New

Bug description:
  Basically, vga cannot detect NVIDIA cards as "VGA compatible
  controller", this is tested on a Optimus System.

  dmesg indicates that it's not a valid vga device:

  :~$ dmesg | grep vgaar
  [    0.202410] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
  [    0.202413] vgaarb: loaded
  [    0.202414] vgaarb: bridge control possible 0000:00:02.0
  [    0.936062] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
  [  532.414245] vgaarb: this pci device is not a vga device
  [  533.778296] vgaarb: this pci device is not a vga device

  system:~$ uname -a
  Linux  3.16.0-10-generic #15-Ubuntu SMP Thu Aug 21 16:26:44 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  system:~$ lspci -nn
  00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
  01:00.0 3D controller [0302]: NVIDIA Corporation GK208M [GeForce GT 735M] [10de:1291] (rev ff)

  According to this:

  https://github.com/Bumblebee-Project/Bumblebee/issues/159

  it's look like the patch for vgaarb is not in 14.10

  more info:
  https://bugzilla.kernel.org/show_bug.cgi?id=63641

  previous patch is on: http://pastebin.com/wpmFi38k

  Thanks.

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