Start X on Xen dom0 installed on Arch

I’m trying to make a testing environment for a Xen setup using Arch as dom0. Because I don’t have another terminal I would like to install X-server and I3 in order to have a graphical environment but for some reason it doesn’t work.

Long story short I followed the instructions from the wiki page, but when I start the OS using Xen kernel I’m not able to start X, I receive “NVIDIA(0): Failed to allocate shared surface”.

I installed kernel-headers, nvidia-dkms but nothing worked with the proprietary drivers. Here is the Xorg.log (paste.bin).

Does the installation order matter when installing Xen? First I installed X server on a new Arch install and after that I installed the Xen hypervisor.

Should I first install the Xen hypervisor and after that install X server?

System specs:
Nvidia 1060
AMD 3900x
RAM 32GB

After a couple of days of debugging I was able to make a small progress with this issue. I recreated the setup from the beginning using the following steps.

  1. Install Arch (only the mandatory files from the guide)
  2. Install Xen hypervisor with xen-grub. (xl list return the dom0 domain)
  3. Install xorg-server, xorg-xinit, nvidia, i3-wm and i3status. (Nvidia driver install completed and prepare .xinitrc)
  4. StartX -> will finally start the X server with I3
  5. Reboot
  6. StartX -> X server refuses to start again.

I don’t understand why X is working immediately after install and after reboot it doesn’t. Any ideas what is changing at reboot?

Latest Xorg.0.log:

[   147.996] (WW) Failed to open protocol names file lib/xorg/protocol.txt
[   147.997] 
X.Org X Server 1.20.9
X Protocol Version 11, Revision 0
[   147.997] Build Operating System: Linux Arch Linux
[   147.997] Current Operating System: Linux archlinux-xen 5.8.13-arch1-1 #1 SMP PREEMPT Thu, 01 Oct 2020 20:40:35 +0000 x86_64
[   147.997] Kernel command line: placeholder root=/dev/mapper/arch_vg_wd-root rw earlyprintk=xen loglevel=3 quiet
[   147.997] Build Date: 02 September 2020  06:17:44AM
[   147.997]  
[   147.997] Current version of pixman: 0.40.0
[   147.998] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   147.998] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   147.998] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Oct  6 09:51:43 2020
[   147.999] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   147.999] (==) No Layout section.  Using the first Screen section.
[   147.999] (==) No screen section available. Using defaults.
[   147.999] (**) |-->Screen "Default Screen Section" (0)
[   147.999] (**) |   |-->Monitor "<default monitor>"
[   147.999] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[   147.999] (==) Automatically adding devices
[   147.999] (==) Automatically enabling devices
[   147.999] (==) Automatically adding GPU devices
[   147.999] (==) Automatically binding GPU devices
[   147.999] (==) Max clients allowed: 256, resource mask: 0x1fffff
[   148.000] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/misc".
[   148.000] 	Entry deleted from font path.
[   148.000] 	(Run 'mkfontdir' on "/usr/share/fonts/misc").
[   148.001] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/TTF".
[   148.001] 	Entry deleted from font path.
[   148.001] 	(Run 'mkfontdir' on "/usr/share/fonts/TTF").
[   148.001] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[   148.001] 	Entry deleted from font path.
[   148.001] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[   148.001] 	Entry deleted from font path.
[   148.001] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[   148.001] 	Entry deleted from font path.
[   148.001] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[   148.001] 	Entry deleted from font path.
[   148.001] (==) FontPath set to:
	
[   148.001] (==) ModulePath set to "/usr/lib/xorg/modules"
[   148.001] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[   148.001] (II) Module ABI versions:
[   148.001] 	X.Org ANSI C Emulation: 0.4
[   148.001] 	X.Org Video Driver: 24.1
[   148.001] 	X.Org XInput driver : 24.1
[   148.001] 	X.Org Server Extension : 10.0
[   148.001] (++) using VT number 1

[   148.003] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_31
[   148.003] (II) xfree86: Adding drm device (/dev/dri/card0)
[   148.003] (II) Platform probe for /sys/devices/pci0000:00/0000:00:03.1/0000:0c:00.0/drm/card0
[   148.004] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 10 paused 0
[   148.007] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules"
[   148.011] (--) PCI:*(12@0:0:0) 10de:1c03:1458:3716 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000f000/128, BIOS @ 0x????????/524288
[   148.011] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[   148.011] (II) LoadModule: "glx"
[   148.013] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[   148.020] (II) Module glx: vendor="X.Org Foundation"
[   148.020] 	compiled for 1.20.9, module version = 1.0.0
[   148.020] 	ABI class: X.Org Server Extension, version 10.0
[   148.020] (II) Applying OutputClass "nvidia" to /dev/dri/card0
[   148.020] 	loading driver: nvidia
[   148.020] (==) Matched nvidia as autoconfigured driver 0
[   148.020] (==) Matched nouveau as autoconfigured driver 1
[   148.020] (==) Matched nv as autoconfigured driver 2
[   148.020] (==) Matched modesetting as autoconfigured driver 3
[   148.020] (==) Matched fbdev as autoconfigured driver 4
[   148.020] (==) Matched vesa as autoconfigured driver 5
[   148.020] (==) Assigned the driver to the xf86ConfigLayout
[   148.020] (II) LoadModule: "nvidia"
[   148.020] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[   148.025] (II) Module nvidia: vendor="NVIDIA Corporation"
[   148.025] 	compiled for 1.6.99.901, module version = 1.0.0
[   148.025] 	Module class: X.Org Video Driver
[   148.026] (II) LoadModule: "nouveau"
[   148.026] (WW) Warning, couldn't open module nouveau
[   148.026] (EE) Failed to load module "nouveau" (module does not exist, 0)
[   148.026] (II) LoadModule: "nv"
[   148.027] (WW) Warning, couldn't open module nv
[   148.027] (EE) Failed to load module "nv" (module does not exist, 0)
[   148.027] (II) LoadModule: "modesetting"
[   148.027] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[   148.029] (II) Module modesetting: vendor="X.Org Foundation"
[   148.029] 	compiled for 1.20.9, module version = 1.20.9
[   148.029] 	Module class: X.Org Video Driver
[   148.029] 	ABI class: X.Org Video Driver, version 24.1
[   148.029] (II) LoadModule: "fbdev"
[   148.029] (WW) Warning, couldn't open module fbdev
[   148.030] (EE) Failed to load module "fbdev" (module does not exist, 0)
[   148.030] (II) LoadModule: "vesa"
[   148.030] (WW) Warning, couldn't open module vesa
[   148.030] (EE) Failed to load module "vesa" (module does not exist, 0)
[   148.030] (II) NVIDIA dlloader X Driver  455.23.04  Sun Sep 13 23:15:36 UTC 2020
[   148.030] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[   148.031] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[   148.031] (II) systemd-logind: releasing fd for 226:0
[   148.032] (II) Loading sub module "fb"
[   148.032] (II) LoadModule: "fb"
[   148.032] (II) Loading /usr/lib/xorg/modules/libfb.so
[   148.033] (II) Module fb: vendor="X.Org Foundation"
[   148.033] 	compiled for 1.20.9, module version = 1.0.0
[   148.033] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   148.033] (II) Loading sub module "wfb"
[   148.033] (II) LoadModule: "wfb"
[   148.033] (II) Loading /usr/lib/xorg/modules/libwfb.so
[   148.034] (II) Module wfb: vendor="X.Org Foundation"
[   148.034] 	compiled for 1.20.9, module version = 1.0.0
[   148.034] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   148.034] (II) Loading sub module "ramdac"
[   148.034] (II) LoadModule: "ramdac"
[   148.034] (II) Module "ramdac" already built-in
[   148.035] (WW) Falling back to old probe method for modesetting
[   148.035] (II) NVIDIA(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[   148.035] (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
[   148.035] (==) NVIDIA(0): RGB weight 888
[   148.035] (==) NVIDIA(0): Default visual is TrueColor
[   148.035] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[   148.035] (II) Applying OutputClass "nvidia" options to /dev/dri/card0
[   148.035] (**) NVIDIA(0): Option "AllowEmptyInitialConfiguration"
[   148.035] (**) NVIDIA(0): Enabling 2D acceleration
[   148.035] (II) Loading sub module "glxserver_nvidia"
[   148.035] (II) LoadModule: "glxserver_nvidia"
[   148.036] (II) Loading /usr/lib/nvidia/xorg/libglxserver_nvidia.so
[   148.108] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[   148.108] 	compiled for 1.6.99.901, module version = 1.0.0
[   148.108] 	Module class: X.Org Server Extension
[   148.108] (II) NVIDIA GLX Module  455.23.04  Sun Sep 13 23:19:00 UTC 2020
[   148.110] (II) NVIDIA: The X server supports PRIME Render Offload.
[   148.809] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:12:0:0
[   148.809] (--) NVIDIA(0):     DFP-0
[   148.809] (--) NVIDIA(0):     DFP-1 (boot)
[   148.809] (--) NVIDIA(0):     DFP-2
[   148.809] (--) NVIDIA(0):     DFP-3
[   148.809] (--) NVIDIA(0):     DFP-4
[   148.810] (--) NVIDIA(0):     DFP-5
[   148.810] (--) NVIDIA(0):     DFP-6
[   148.810] (--) NVIDIA(0):     DFP-7
[   148.810] (II) NVIDIA(0): NVIDIA GPU GeForce GTX 1060 6GB (GP106-A) at PCI:12:0:0
[   148.810] (II) NVIDIA(0):     (GPU-0)
[   148.810] (--) NVIDIA(0): Memory: 6291456 kBytes
[   148.810] (--) NVIDIA(0): VideoBIOS: 86.06.0e.00.07
[   148.810] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[   148.810] (--) NVIDIA(GPU-0): DFP-0: disconnected
[   148.810] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[   148.810] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock
[   148.810] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DELL S2721DGF (DFP-1): connected
[   148.847] (--) NVIDIA(GPU-0): DELL S2721DGF (DFP-1): Internal TMDS
[   148.847] (--) NVIDIA(GPU-0): DELL S2721DGF (DFP-1): 600.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-2: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[   148.847] (--) NVIDIA(GPU-0): DFP-2: 1440.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-3: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
[   148.847] (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-4: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-4: Internal DisplayPort
[   148.847] (--) NVIDIA(GPU-0): DFP-4: 1440.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-5: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-5: Internal TMDS
[   148.847] (--) NVIDIA(GPU-0): DFP-5: 165.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-6: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-6: Internal DisplayPort
[   148.847] (--) NVIDIA(GPU-0): DFP-6: 1440.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.847] (--) NVIDIA(GPU-0): DFP-7: disconnected
[   148.847] (--) NVIDIA(GPU-0): DFP-7: Internal TMDS
[   148.847] (--) NVIDIA(GPU-0): DFP-7: 165.0 MHz maximum pixel clock
[   148.847] (--) NVIDIA(GPU-0): 
[   148.853] (==) NVIDIA(0): 
[   148.853] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[   148.853] (==) NVIDIA(0):     will be used as the requested mode.
[   148.853] (==) NVIDIA(0): 
[   148.853] (II) NVIDIA(0): Validated MetaModes:
[   148.853] (II) NVIDIA(0):     "DFP-1:nvidia-auto-select"
[   148.853] (II) NVIDIA(0): Virtual screen size determined to be 2560 x 1440
[   148.859] (--) NVIDIA(0): DPI set to (108, 107); computed from "UseEdidDpi" X config
[   148.859] (--) NVIDIA(0):     option
[   148.859] (II) UnloadModule: "modesetting"
[   148.859] (II) Unloading modesetting
[   148.860] (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
[   148.860] (II) NVIDIA:     access.
[   148.861] (EE) NVIDIA(0): Failed to allocate shared surface
[   148.935] (EE) 
Fatal server error:
[   148.935] (EE) AddScreen/ScreenInit failed for driver 0
[   148.935] (EE) 
[   148.935] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[   148.935] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   148.935] (EE) 
[   148.938] (EE) Server terminated with error (1). Closing log file.