[vfio-users] [help] 2 identical GPUs in Arch

Sun Feb 21 17:05:40 UTC 2016

Did you pci stub them? If you pci stubbed both cards then then X obviously
won't launch since it has no active graphics device. The module is probably
failing because it has no card to bind to and X is set to launch using the
nvidia driver. If you bind one of the cards to nvidia, X will probably
launch.
On Feb 21, 2016 12:01 PM, "Garland Key" <david.garland.key at gmail.com> wrote:

> It seems xorg crashed because the nvidia kernel module failed.  Here's the
> xorg log file:
>
> [    10.474] (--) Log file renamed from "/var/log/Xorg.pid-1427.log" to
> "/var/log/Xorg.0.log"
> [    10.474]
> X.Org X Server 1.18.1
> Release Date: 2016-02-08
> [    10.474] X Protocol Version 11, Revision 0
> [    10.474] Build Operating System: Linux 4.2.5-1-ARCH x86_64
> [    10.474] Current Operating System: Linux makeshift 4.4.1-2-ARCH #1 SMP
> PREEMPT Wed Feb 3 13:12:33 UTC 2016 x86_64
> [    10.474] Kernel command line: initrd=\initramfs-linux.img
> root=/dev/sda2 rw resume=/dev/sda3 quiet splash rd.modules-load=vfio-pci
> intel_iommu=on usbhid.quirks=0x1B1C:0x1B13:0x20000408
> [    10.474] Build Date: 11 February 2016  09:57:03AM
> [    10.474]
> [    10.474] Current version of pixman: 0.34.0
> [    10.474] Before reporting problems, check http://wiki.x.org
> to make sure that you have the latest version.
> [    10.474] Markers: (--) probed, (**) from config file, (==) default
> setting,
> (++) from command line, (!!) notice, (II) informational,
> (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
> [    10.474] (==) Log file: "/var/log/Xorg.0.log", Time: Sun Feb 21
> 10:37:06 2016
> [    10.474] (==) Using config file: "/etc/X11/xorg.conf"
> [    10.474] (==) Using system config directory
> "/usr/share/X11/xorg.conf.d"
> [    10.475] (==) ServerLayout "Layout0"
> [    10.475] (**) |-->Screen "Screen0" (0)
> [    10.475] (**) |   |-->Monitor "Monitor0"
> [    10.475] (**) |   |-->Device "Device0"
> [    10.475] (**) |-->Input Device "Keyboard0"
> [    10.475] (**) |-->Input Device "Mouse0"
> [    10.475] (==) Automatically adding devices
> [    10.475] (==) Automatically enabling devices
> [    10.475] (==) Automatically adding GPU devices
> [    10.475] (==) Max clients allowed: 256, resource mask: 0x1fffff
> [    10.475] (WW) `fonts.dir' not found (or not valid) in
> "/usr/share/fonts/100dpi/".
> [    10.475] Entry deleted from font path.
> [    10.475] (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
> [    10.475] (WW) `fonts.dir' not found (or not valid) in
> "/usr/share/fonts/75dpi/".
> [    10.475] Entry deleted from font path.
> [    10.475] (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
> [    10.475] (==) FontPath set to:
> /usr/share/fonts/misc/,
> /usr/share/fonts/TTF/,
> /usr/share/fonts/OTF/,
> /usr/share/fonts/Type1/
> [    10.475] (==) ModulePath set to "/usr/lib/xorg/modules"
> [    10.475] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse'
> or 'vmmouse' will be disabled.
> [    10.475] (WW) Disabling Keyboard0
> [    10.475] (WW) Disabling Mouse0
> [    10.475] (II) Loader magic: 0x81ad60
> [    10.475] (II) Module ABI versions:
> [    10.475] X.Org ANSI C Emulation: 0.4
> [    10.475] X.Org Video Driver: 20.0
> [    10.475] X.Org XInput driver : 22.1
> [    10.475] X.Org Server Extension : 9.0
> [    10.475] (++) using VT number 1
>
> [    10.475] (II) systemd-logind: logind integration requires -keeptty and
> -keeptty was not provided, disabling logind integration
> [    10.478] (--) PCI:*(0:1:0:0) 10de:13c2:1458:367a rev 161, Mem @
> 0xfa000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @
> 0x0000e000/128, BIOS @ 0x????????/524288
> [    10.478] (--) PCI: (0:2:0:0) 10de:13c2:1458:367a rev 161, Mem @
> 0xf8000000/16777216, 0xa0000000/268435456, 0xb0000000/33554432, I/O @
> 0x0000d000/128, BIOS @ 0x????????/524288
> [    10.478] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file
> or directory)
> [    10.478] (II) LoadModule: "glx"
> [    10.478] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
> [    10.482] (II) Module glx: vendor="NVIDIA Corporation"
> [    10.482] compiled for 4.0.2, module version = 1.0.0
> [    10.482] Module class: X.Org Server Extension
> [    10.482] (II) NVIDIA GLX Module  361.28  Wed Feb  3 15:10:57 PST 2016
> [    10.482] (II) LoadModule: "nvidia"
> [    10.483] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
> [    10.483] (II) Module nvidia: vendor="NVIDIA Corporation"
> [    10.483] compiled for 4.0.2, module version = 1.0.0
> [    10.483] Module class: X.Org Video Driver
> [    10.483] (II) NVIDIA dlloader X Driver  361.28  Wed Feb  3 14:48:10
> PST 2016
> [    10.483] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
> [    10.483] (II) Loading sub module "fb"
> [    10.483] (II) LoadModule: "fb"
> [    10.483] (II) Loading /usr/lib/xorg/modules/libfb.so
> [    10.483] (II) Module fb: vendor="X.Org Foundation"
> [    10.483] compiled for 1.18.1, module version = 1.0.0
> [    10.483] ABI class: X.Org ANSI C Emulation, version 0.4
> [    10.483] (II) Loading sub module "wfb"
> [    10.483] (II) LoadModule: "wfb"
> [    10.483] (II) Loading /usr/lib/xorg/modules/libwfb.so
> [    10.484] (II) Module wfb: vendor="X.Org Foundation"
> [    10.484] compiled for 1.18.1, module version = 1.0.0
> [    10.484] ABI class: X.Org ANSI C Emulation, version 0.4
> [    10.484] (II) Loading sub module "ramdac"
> [    10.484] (II) LoadModule: "ramdac"
> [    10.484] (II) Module "ramdac" already built-in
> [    10.489] (EE) NVIDIA: Failed to initialize the NVIDIA kernel module.
> Please see the
> [    10.489] (EE) NVIDIA:     system's kernel log for additional error
> messages and
> [    10.489] (EE) NVIDIA:     consult the NVIDIA README for details.
> [    10.489] (EE) No devices detected.
> [    10.489] (EE)
> Fatal server error:
> [    10.489] (EE) no screens found(EE)
> [    10.489] (EE)
> Please consult the The X.Org Foundation support
> at http://wiki.x.org
>  for help.
> [    10.489] (EE) Please also check the log file at "/var/log/Xorg.0.log"
> for additional information.
> [    10.489] (EE)
>
> On Sun, Feb 21, 2016 at 11:10 AM Alex Williamson <
> alex.williamson at redhat.com> wrote:
>
>> On Sun, Feb 21, 2016 at 9:04 AM, Garland Key <david.garland.key at gmail.com
>> > wrote:
>>
>>> Thanks Alex,
>>>
>>> I consider myself an intermediate power user. I know enough to
>>> understand what the line that you provided does, but not enough to write a
>>> solution of my own. I inserted the line that you provided above in
>>> /modprobe.d/vfio.conf and it caused X to fail. I had to alt+f2 to comment
>>> it out, rebuilt initramfs and then reboot.
>>>
>>> It was suggested that I could do this through a systemd service in the
>>> arch irc channel but nobody was able to provide details other than "man
>>> systemd.service".  Any further pointers is greatly appreciated.
>>>
>>
>> Why does Xorg fail and what is a systemd script supposed to do
>> differently to make it work?  Maybe you just need to create an xorg.conf
>> stub with a BusID to specify the remaining card for the host.
>>
>
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