This what I captured from dmesg.

PCI 02:00.0 is a 730 GTX w/1Gb DDR5

PCI 01:00.0 is a 960 GTX w/4Gb DDR5

Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: bios: version 84.06.26.00.2c
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: gr: using external firmware
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: Direct firmware load for nvidia/gm206/fecs_inst.bin failed with error -2
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: gr: failed to load fecs_inst
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: disp: dcb 15 type 8 unknown
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: TMDS table version 2.0
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB version 4.1
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 00: 01000f02 00020030
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 01: 02000f00 00000000
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 02: 04011f82 00020030
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 03: 02022f62 00020010
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 05: 02833f76 04400020
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 06: 02033f72 00020020
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB outp 15: 01df5ff8 00000000
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB conn 00: 00001030
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB conn 01: 01000131
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB conn 02: 00010261
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB conn 03: 00020346
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: DCB conn 05: 00000570
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: Pointer to flat panel table invalid
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: unknown connector type 70
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: failed to create encoder 1/8/0: -19
Apr 02 17:08:56 localhost kernel: nouveau 0000:01:00.0: DRM: Unknown-1 has no encoders, removing
Apr 02 17:08:57 localhost kernel: nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
Apr 02 17:08:57 localhost kernel: nouveau 0000:01:00.0: DRM: allocated 1920x1080 fb: 0x60000, bo ffff88089ac02800
Apr 02 17:08:57 localhost kernel: nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
Apr 02 17:08:57 localhost kernel: nouveau 0000:02:00.0: enabling device (0000 -> 0003)
Apr 02 17:08:57 localhost kernel: nouveau 0000:02:00.0: NVIDIA GK208B (b06070b1)
Apr 02 17:08:57 localhost kernel: nouveau 0000:02:00.0: bios: version 80.28.78.00.01
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: priv: HUB0: 086014 ffffffff (1f70820c)
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: fb: 1024 MiB GDDR5
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: VRAM: 1024 MiB
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: GART: 1048576 MiB
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: TMDS table version 2.0
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB version 4.0
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB outp 00: 01000f02 00020030
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB outp 01: 02011f62 00020010
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB outp 02: 02022f10 00000000
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB conn 00: 00001031
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB conn 01: 00002161
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: DCB conn 02: 00000200
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: DRM: MM: using COPY for buffer copies
Apr 02 17:08:58 localhost kernel: nouveau 0000:02:00.0: No connectors reported connected with modes
Apr 02 17:08:59 localhost kernel: nouveau 0000:02:00.0: DRM: allocated 1024x768 fb: 0x60000, bo ffff88089a47c400
Apr 02 17:08:59 localhost kernel: nouveau 0000:02:00.0: fb1: nouveaufb frame buffer device

Apr 02 17:09:01 localhost.localdomain kernel: mei_me 0000:00:16.0: enabling device (0000 -> 0002)
Apr 02 17:09:01 localhost.localdomain kernel: snd_hda_intel 0000:01:00.1: Disabling MSI
Apr 02 17:09:01 localhost.localdomain kernel: snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
Apr 02 17:09:01 localhost.localdomain kernel: snd_hda_intel 0000:02:00.1: Disabling MSI
Apr 02 17:09:01 localhost.localdomain kernel: snd_hda_intel 0000:02:00.1: Handle vga_switcheroo audio client
Apr 02 17:09:02 localhost.localdomain kernel: snd_hda_intel 0000:00:1f.3: failed to add i915 component master (-19)
Apr 02 17:09:02 localhost.localdomain kernel: e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
Apr 02 17:09:02 localhost.localdomain kernel: e1000e 0000:00:1f.6 eth1: registered PHC clock
Apr 02 17:09:02 localhost.localdomain kernel: e1000e 0000:00:1f.6 eth1: (PCI Express:2.5GT/s:Width x1) 00:1f:bc:0f:37:76
Apr 02 17:09:02 localhost.localdomain kernel: e1000e 0000:00:1f.6 eth1: Intel(R) PRO/1000 Network Connection
Apr 02 17:09:02 localhost.localdomain kernel: e1000e 0000:00:1f.6 eth1: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
Apr 02 17:09:03 localhost.localdomain kernel: e1000e 0000:00:1f.6 enp0s31f6: renamed from eth1
Apr 02 17:09:11 localhost.localdomain kernel: ahci 0000:00:17.0: port does not support device sleep
Apr 02 17:09:29 localhost.localdomain kernel: e1000e 0000:00:1f.6 enp0s31f6: 10/100 speed: disabling TSO

On Fri, Apr 1, 2016 at 8:17 AM, <bugzilla-daemon@freedesktop.org> wrote:

Comment # 13 on bug 94725 from Karol Herbst

(In reply to Rashed Abdel-Tawab from comment #10)
> Created attachment 122654 [details]
> dmesg using tentative fix
> 
> Alexandre, using the tentative fix you uploaded it switches GPUs properly
> now. Here is the dmesg from that since there are still some errors related
> to power state in it. Also, for some reason lshw is returning this for the
> nVidia GPU now:
> 
> *-generic
>                 description: Unassigned class
>                 product: Illegal Vendor ID
>                 vendor: Illegal Vendor ID
>                 physical id: 0
>                 bus info: pci@0000:01:00.0
>                 version: ff
>                 width: 32 bits
>                 clock: 66MHz
>                 capabilities: bus_master vga_palette cap_list rom
>                 configuration: driver=nouveau latency=255 maxlatency=255
> mingnt=255
>                 resources: irq:129 memory:dc000000-dcffffff
> memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:e000(size=128)
> memory:dd000000-dd07ffff
> 
> I don't know if that's related to this at all but before, if I set runpm=0
> and run lshw, it would return the proper description (running it without
> runpm would cause the system to hang)

I have the same issue with bbswitch (and maybe vgaswitcheroo too). Basically
this means that in d3cold we can't talke to the gpu and the information isn't
cached or something like that.

You are receiving this mail because:

You are the assignee for the bug.

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