Can't use iGPU, output freezes after "loading systemd-udevd .." (VFIO)

helloworld918441 · 2025-06-29 15:40:31

I'm trying to use looking-glass, can't isolate the GPU because output stops outputting after that (the screen doesn't turn off, it just stops showing anything else but it still shows what it said before)
inxi -Gz:
Graphics:
Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
driver: i915 v: kernel
Device-2: NVIDIA GP107 [GeForce GTX 1050 Ti] driver: nvidia v: 575.64
Display: wayland server: X.org v: 1.21.1.18 with: Xwayland v: 24.1.8
compositor: kwin_wayland driver: X: loaded: nvidia unloaded: modesetting
gpu: nvidia,nvidia-nvswitch resolution: 1920x1080~60Hz
API: EGL v: 1.5 drivers: crocus,nvidia,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 575.64
renderer: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2
API: Vulkan v: 1.4.313 drivers: nvidia surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,
kscreen-doctor, xfce4-display-settings gpu: nvidia-smi wl: wayland-info
x11: xdpyinfo, xprop, xrandr
dmesg says:
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] Found haswell (device ID 0412) integrated display version 7.00 stepping N/A
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] GT0: Incompatible option enable_guc=3 - GuC is not supported!
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] GT0: Incompatible option enable_guc=3 - GuC submission is N/A
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] PipeC fused off
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] VT-d active for gfx access
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] Using Transparent Hugepages
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] DMAR active, disabling use of stolen memory
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=none:owns=io+mem
Jun 29 17:15:51 arch kernel: [drm] Initialized i915 1.6.0 for 0000:00:02.0 on minor 1
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
Jun 29 17:15:51 arch kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
I tried with and without enable_guc=3, tried with and without xf86-video-intel, tried kernel parameters quiet and video=efifb:off

Using systemd-boot, kernel parameters: root=UUID=ad19b239-a7b0-4f28-add3-56b64496b605 rootflags=subvol=@ rw libata.force=2.00:disable intel_iommu=on iommu=pt
(libata.force is to disable the extremely slow disk that I don't need)
/etc/mkinitcpio.conf is mostly unmodified, except the modules are: (i915 vfio_pci vfio_iommu_type1 vfio btrfs)
/etc/modprobe.d/vfio.conf:
options vfio-pci ids=10de:1c82,10de:0fb9
softdep drm pre: vfio-pci
softdep nvidiafb pre: vfio-pci

Specs:
CPU: Intel i5-4570 3.2GHz
GPU: NVIDIA GTX 1050 Ti 4GB
Motherboard: MSI H81M-P33 Combo
RAM: 2x4GB of an unknown company

Lone_Wolf · 2025-06-30 08:33:35

Please use code tags for such output .

Is there a monitor attached to the dvi-d or vga output of the motherboard ?

helloworld918441 · 2025-07-02 07:19:03

Forgot about that, plugged it into the motherboard's VGA and the output of that doesn't freeze, but SDDM exits shortly after starting, TTY works but the text starts at a little outside of the screen, and i saw Plasma say it's 1920x1080 as 1830x1031 or something like that, don't remember it exactly since i can't get that thing to show anymore, and i did leave the HDMI plugged into the dGPU just in case i don't wanna use vfio
SDDM's logs about Wayland:

Jul 02 08:52:46 arch systemd[1]: Started Session c1 of User sddm.
Jul 02 08:52:46 arch sddm-helper[636]: Jumping to VT 1
Jul 02 08:52:46 arch sddm-helper[636]: VT mode fixed
Jul 02 08:52:46 arch sddm[553]: Greeter session started successfully
Jul 02 08:52:46 arch sddm-helper-start-wayland[636]: Starting Wayland process "weston --shell=kiosk" "sddm"
Jul 02 08:52:46 arch sddm-helper-start-wayland[636]: Failed to start "weston --shell=kiosk": Child process set up failed: execve: No such file or directory
Jul 02 08:52:46 arch sddm-helper-start-wayland[636]: SDDM was unable to start "weston --shell=kiosk"
Jul 02 08:52:46 arch sddm-helper[574]: [PAM] Closing session
Jul 02 08:52:46 arch sddm-helper[574]: pam_unix(sddm-greeter:session): session closed for user sddm
Jul 02 08:52:46 arch sddm-helper[574]: [PAM] Ended.
Jul 02 08:52:46 arch sddm[553]: Auth: sddm-helper exited with 4
Jul 02 08:52:46 arch sddm[553]: Greeter stopped. SDDM::Auth::HELPER_DISPLAYSERVER_ERROR
Jul 02 08:52:46 arch sddm[553]: Removing display SDDM::Display(0x55f1271a6050) ...
Jul 02 08:52:46 arch sddm[553]: Socket server stopping...
Jul 02 08:52:46 arch sddm[553]: Socket server stopped.
Jul 02 08:52:46 arch sddm[553]: Failed to launch the display server, falling back to DisplayServer=x11-user
Jul 02 08:52:46 arch sddm[553]: Adding new display...

(maybe i should just get rid of Weston.. i don't even have that installed, why does SDDM need it?)
SDDM x11 logs:

Jul 02 08:52:46 arch sddm[553]: Adding new display...
Jul 02 08:52:46 arch sddm[553]: Loaded empty theme configuration
Jul 02 08:52:46 arch sddm[553]: Using VT 1
Jul 02 08:52:46 arch sddm[553]: Display server started.
Jul 02 08:52:46 arch sddm[553]: Socket server starting...
Jul 02 08:52:46 arch sddm[553]: Socket server started.
Jul 02 08:52:46 arch sddm[553]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Jul 02 08:52:46 arch sddm[553]: Greeter starting...
Jul 02 08:52:46 arch sddm-helper[644]: [PAM] Starting...
Jul 02 08:52:46 arch sddm-helper[644]: [PAM] Authenticating...
Jul 02 08:52:46 arch sddm-helper[644]: [PAM] returning.
Jul 02 08:52:46 arch sddm-helper[644]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=968) by (uid=0)
Jul 02 08:52:46 arch systemd-logind[496]: New session c2 of user sddm.
Jul 02 08:52:46 arch systemd[1]: Started Session c2 of User sddm.
Jul 02 08:52:46 arch sddm-helper[644]: Starting X11 session: "/usr/bin/X -nolisten tcp -background none -seat seat0 -noreset -keeptty -novtswitch -verbose 3" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm--bUbGVW --theme /usr/share/sddm/themes/breeze"
Jul 02 08:52:46 arch sddm-helper[651]: Jumping to VT 1
Jul 02 08:52:46 arch sddm-helper[651]: VT mode didn't need to be fixed
Jul 02 08:52:46 arch sddm[553]: Greeter session started successfully
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: Xauthority path: "/run/user/968/xauth_opgYtF"
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: Running server: /usr/bin/X -nolisten tcp -background none -seat seat0 -noreset -keeptty -novtswitch -verbose 3 -auth /run/user/968/xauth_opgYtF -displayfd 13 vt1
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: Failed to read display number from pipe
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: "(--) Log file renamed from \"/var/lib/sddm/.local/share/xorg/Xorg.pid-652.log\" to \"/var/lib/sddm/.local/share/xorg/Xorg.0.log\"\n\nX.Org X Server 1.21.1.18\nX Protocol Version 11, Revision 0\nCurrent Operating System: Linux arch 6.15.3-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 19 Jun 2025 14:41:19 +0000 x86_64\nKernel command line: initrd=\\initramfs-custom.img root=UUID=ad19b239-a7b0-4f28-add3-56b64496b605 rootflags=subvol=@ rw libata.force=2.00:disable intel_iommu=on iommu=pt rd.driver.pre=vfio-pci vfio-pci.ids=10de:1c82\n \nCurrent version of pixman: 0.46.2\n\tBefore reporting problems, check http://wiki.x.org\n\tto make sure that you have the latest version.\nMarkers: (--) probed, (**) from config file, (==) default setting,\n\t(++) from command line, (!!) notice, (II) informational,\n\t(WW) warning, (EE) error, (NI) not implemented, (??) unknown.\n(==) Log file: \"/var/lib/sddm/.local/share/xorg/Xorg.0.log\", Time: Wed Jul  2 08:52:46 2025\n(==) Using config directory: \"/etc/X11/xorg.conf.d\"\n(==) Using system config directory \"/usr/share/X11/xorg.conf.d\"\n(==) No Layout section.  Using the first Screen section.\n(==) No screen section available. Using defaults.\n(**) |-->Screen \"Default Screen Section\" (0)\n(**) |   |-->Monitor \"<default monitor>\"\n(==) No monitor specified for screen \"Default Screen Section\".\n\tUsing a default monitor configuration.\n(**) Allowing byte-swapped clients\n(==) Automatically adding devices\n(==) Automatically enabling devices\n(==) Automatically adding GPU devices\n(==) Automatically binding GPU devices\n(==) Max clients allowed: 256, resource mask: 0x1fffff\n(WW) `fonts.dir' not found (or not valid) in \"/usr/share/fonts/misc\".\n\tEntry deleted from font path.\n\t(Run 'mkfontdir' on \"/usr/share/fonts/misc\").\n(WW) `fonts.dir' not found (or not valid) in \"/usr/share/fonts/TTF\".\n\tEntry deleted from font path.\n\t(Run 'mkfontdir' on \"/usr/share/fonts/TTF\").\n(WW) The directory \"/usr/share/fonts/OTF\" does not exist.\n\tEntry deleted from font path.\n(WW) The directory \"/usr/share/fonts/Type1\" does not exist.\n\tEntry deleted from font path.\n(WW) The directory \"/usr/share/fonts/100dpi\" does not exist.\n\tEntry deleted from font path.\n(WW) The directory \"/usr/share/fonts/75dpi\" does not exist.\n\tEntry deleted from font path.\n(==) FontPath set to:\n\t\n(==) ModulePath set to \"/usr/lib/xorg/modules\"\n(II) The server relies on udev to provide the list of input devices.\n\tIf no devices become available, reconfigure udev or disable AutoAddDevices.\n(II) Module ABI versions:\n\tX.Org ANSI C Emulation: 0.4\n\tX.Org Video Driver: 25.2\n\tX.Org XInput driver : 24.4\n\tX.Org Server Extension : 10.0\n(++) using VT number 1\n\n(II) systemd-logind: took control of session /org/freedesktop/login1/session/c2\n(II) xfree86: Adding drm device (/dev/dri/card0)\n(II) Platform probe for /sys/devices/pci0000:00/0000:00:02.0/drm/card0\n(II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 14 paused 0\n(--) PCI: (0@0:2:0) 8086:0412:1462:7817 rev 6, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64, BIOS @ 0x????????/131072\n(--) PCI:*(1@0:0:0) 10de:1c82:3842:6251 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072\n(II) LoadModule: \"glx\"\n(II) Loading /usr/lib/xorg/modules/extensions/libglx.so\n(II) Module glx: vendor=\"X.Org Foundation\"\n\tcompiled for 1.21.1.18, module version = 1.0.0\n\tABI class: X.Org Server Extension, version 10.0\n(==) Matched intel as autoconfigured driver 0\n(==) Matched nouveau as autoconfigured driver 1\n(==) Matched nv as autoconfigured driver 2\n(==) Matched modesetting as autoconfigured driver 3\n(==) Matched fbdev as autoconfigured driver 4\n(==) Matched vesa as autoconfigured driver 5\n(==) Assigned the driver to the xf86ConfigLayout\n(II) LoadModule: \"intel\"\n(II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so\n(II) Module intel: vendor=\"X.Org Foundation\"\n\tcompiled for 1.21.1.16, module version = 2.99.917\n\tModule class: X.Org Video Driver\n\tABI class: X.Org Video Driver, version 25.2\n(II) LoadModule: \"nouveau\"\n(WW) Warning, couldn't open module nouveau\n(EE) Failed to load module \"nouveau\" (module does not exist, 0)\n(II) LoadModule: \"nv\"\n(WW) Warning, couldn't open module nv\n(EE) Failed to load module \"nv\" (module does not exist, 0)\n(II) LoadModule: \"modesetting\"\n(II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so\n(II) Module modesetting: vendor=\"X.Org Foundation\"\n\tcompiled for 1.21.1.18, module version = 1.21.1\n\tModule class: X.Org Video Driver\n\tABI class: X.Org Video Driver, version 25.2\n(II) LoadModule: \"fbdev\"\n(WW) Warning, couldn't open module fbdev\n(EE) Failed to load module \"fbdev\" (module does not exist, 0)\n(II) LoadModule: \"vesa\"\n(WW) Warning, couldn't open module vesa\n(EE) Failed to load module \"vesa\" (module does not exist, 0)\n(II) intel: Driver for Intel(R) Integrated Graphics Chipsets:\n\ti810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,\n\t915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,\n\tPineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,\n\tGM45, 4 Series, G45/G43, Q45/Q43, G41, B43\n(II) intel: Driver for Intel(R) HD Graphics\n(II) intel: Driver for Intel(R) Iris(TM) Graphics\n(II) intel: Driver for Intel(R) Iris(TM) Pro Graphics\n(II) modesetting: Driver for Modesetting Kernel Drivers: kms\nxf86EnableIO: failed to enable I/O ports 0000-03ff (Operation not permitted)\n(WW) Falling back to old probe method for modesetting\n(II) modeset(1): using default device\n(II) intel(G0): Using Kernel Mode Setting driver: i915, version 1.6.0 0\n(II) intel(G0): SNA compiled from 2.99.917-939-g4a64400e\n(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support\n(EE) Screen 0 deleted because of no matching config section.\n(II) UnloadModule: \"modesetting\"\n(EE) \nFatal server error:\n(EE) Cannot run in framebuffer mode. Please specify busIDs        for all framebuffer devices\n(EE) \n(EE) \nPlease consult the The X.Org Foundation support \n\t at http://wiki.x.org\n for help. \n(EE) Please also check the log file at \"/var/lib/sddm/.local/share/xorg/Xorg.0.log\" for additional information.\n(EE) \n(EE) Server terminated with error (1). Closing log file.\n"
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: quitting helper-start-x11
Jul 02 08:52:46 arch sddm-helper[644]: pam_unix(sddm-greeter:session): session closed for user sddm
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: Stopping server...
Jul 02 08:52:46 arch sddm-helper-start-x11user[651]: Running display stop script: /usr/share/sddm/scripts/Xstop
Jul 02 08:52:46 arch sddm-helper[644]: [PAM] Closing session
Jul 02 08:52:46 arch sddm-helper[644]: [PAM] Ended.
Jul 02 08:52:46 arch sddm[553]: Auth: sddm-helper exited successfully
Jul 02 08:52:46 arch sddm[553]: Greeter stopped. SDDM::Auth::HELPER_SUCCESS
Jul 02 08:52:56 arch (sd-pam)[601]: pam_unix(systemd-user:session): session closed for user sddm
Jul 02 08:54:38 arch sddm[553]: Signal received: SIGTERM
Jul 02 08:54:38 arch sddm[553]: Socket server stopping...
Jul 02 08:54:38 arch sddm[553]: Socket server stopped.
Jul 02 08:54:38 arch systemd[1]: sddm.service: Deactivated successfully.

Last edited by helloworld918441 (2025-07-02 07:31:12)

helloworld918441 · 2025-07-02 07:48:51

Turns out the monitor's scale in the display settings was set to 105%, set it back to 100% and everything is fine
Couldn't get x11 SDDM to work, but used This and got it working properly on Wayland

Arch Linux

#1 2025-06-29 15:40:31

Can't use iGPU, output freezes after "loading systemd-udevd .." (VFIO)

#2 2025-06-30 08:33:35

Re: Can't use iGPU, output freezes after "loading systemd-udevd .." (VFIO)

#3 2025-07-02 07:19:03

Re: Can't use iGPU, output freezes after "loading systemd-udevd .." (VFIO)

#4 2025-07-02 07:48:51

Re: Can't use iGPU, output freezes after "loading systemd-udevd .." (VFIO)

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