Hi, can anyone help me interpret the following lines from dmesg. This is on a new i7 laptop with SSD drive that should be booting in under 30 seconds but has this 90 second delay involving bbswitch. The ACPI Warning line here also shows up 20 or so times 1 second earlier, and then a few times later (at 103 seconds). My reading about bbswitch took me to confusing, sometimes conflicting, often not current, info on disabling modules, changing graphics drivers, or other suggestions with potential to disrupt DayJob for long periods! I'm not at all clear on a good approach here.

Any pointers on where/how to investigate further are welcomed.


[ 5.298003] audit: type=1400 audit(1502312170.476:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=960 comm="apparmor_parser"
[   94.165812] bbswitch: version 0.8
[ 94.165816] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0 [ 94.165821] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP [ 94.165832] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160930/nsarguments-95)
[   94.165886] bbswitch: detected an Optimus _DSM function
[ 94.165902] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[   94.217434] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[ 103.731374] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160930/nsarguments-95) [ 103.731438] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160930/nsarguments-95) [ 103.956534] nvidia-modeset: Allocated GPU:0 (GPU-7a28f76d-7f9f-6616-b4ca-b963c69a79a0) @ PCI:0000:01:00.0 [ 103.957127] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160930/nsarguments-95)

roger@omen:~$ lspci -v

00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04) (prog-if 00 [VGA controller])
    DeviceName: Intel Kabylake HD Graphics GT2
    Subsystem: Hewlett-Packard Company Device 8259
    Flags: bus master, fast devsel, latency 0, IRQ 133
    Memory at b2000000 (64-bit, non-prefetchable) [size=16M]
    Memory at c0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 5000 [size=64]
    [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: <access denied>
    Kernel driver in use: i915
    Kernel modules: i915

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