Message-ID: <af56820e03d9a52a472ec914a17310d11f8d0227.camel@gmx.de>
Date: Tue, 20 Aug 2024 03:31:06 +0200
From: Mike Galbraith <efault@....de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Thomas Zimmermann <tzimmermann@...e.de>
Subject: regression: 9eac534db001 ("firmware/sysfb: Set firmware-framebuffer
 parent device") broke nomodeset boot?

Greetings,

I normally use nouveau so I can suspend, but it's horrid for RT, so
when doing RT latency tracing, I boot with nomodeset.  Yesterday I
decided to check out master-rt cyclictest numbers, but found that X
will no longer start, tracked it back to a v6.9 issue, then bisected
v6.8..v6.9, which fingered $subject.

I haven't yet tried reverting the series the fingered commit is part
of, but did try turning on CONFIG_SYSFB_SIMPLEFB/CONFIG_FB_SIMPLE, and
even the once upon a time used CONFIG_FB_NVIDIA for grins, but alas,
config twiddling did not revive fbdev X.

nomodeset/fbdev X nogo==>go startup log diff:
--- yy	2024-08-20 02:40:05.003271212 +0200
+++ xx	2024-08-20 02:39:06.532061201 +0200
@@ -1,9 +1,9 @@
- (--) Log file renamed from "/var/log/Xorg.pid-2439.log" to "/var/log/Xorg.0.log"
+ (--) Log file renamed from "/var/log/Xorg.pid-2298.log" to "/var/log/Xorg.0.log"

 X.Org X Server 1.21.1.4
 X Protocol Version 11, Revision 0
- Current Operating System: Linux homer 6.9.12-stable #6 SMP Mon Aug 19 09:53:59 CEST 2024 x86_64
- Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.9.12-stable root=UUID=891c2a1f-cc1a-464b-a529-ab6add65aa21 scsi_mod.use_blk_mq=1 ftrace_dump_on_oops skew_tick=1 nortsched nodelayacct nowatchdog audit=0 mitigations=off noresume panic=60 ignore_loglevel showopts crashkernel=204M nomodeset
+ Current Operating System: Linux homer 6.8.12-stable #7 SMP Mon Aug 19 11:12:36 CEST 2024 x86_64
+ Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.8.12-stable root=UUID=891c2a1f-cc1a-464b-a529-ab6add65aa21 scsi_mod.use_blk_mq=1 ftrace_dump_on_oops skew_tick=1 nortsched nodelayacct nowatchdog audit=0 mitigations=off noresume panic=60 ignore_loglevel showopts crashkernel=204M nomodeset

  Current version of pixman: 0.40.0
  	Before reporting problems, check http://wiki.x.org
@@ -11,7 +11,7 @@ X Protocol Version 11, Revision 0
  Markers: (--) probed, (**) from config file, (==) default setting,
 	(++) from command line, (!!) notice, (II) informational,
 	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
- (==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug 20 02:33:32 2024
+ (==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug 20 02:30:29 2024
  (==) Using config directory: "/etc/X11/xorg.conf.d"
  (==) Using system config directory "/usr/share/X11/xorg.conf.d"
  (==) No Layout section.  Using the first Screen section.
@@ -40,7 +40,7 @@ X Protocol Version 11, Revision 0
  (WW) Ignoring unrecognized extension "XFree86-DGA"
  (II) The server relies on udev to provide the list of input devices.
 	If no devices become available, reconfigure udev or disable AutoAddDevices.
- (II) Loader magic: 0x556d72b5ede0
+ (II) Loader magic: 0x56547fcffde0
  (II) Module ABI versions:
  	X.Org ANSI C Emulation: 0.4
  	X.Org Video Driver: 25.2
@@ -111,20 +111,282 @@ X Protocol Version 11, Revision 0
  (II) Module fbdevhw: vendor="X.Org Foundation"
  	compiled for 1.21.1.4, module version = 0.0.2
  	ABI class: X.Org Video Driver, version 25.2
- vesa: Refusing to run, Framebuffer or dri device present
+ (II) FBDEV(2): using default device
  (EE) Screen 0 deleted because of no matching config section.
  (II) UnloadModule: "modesetting"
  (EE) Screen 0 deleted because of no matching config section.
  (II) UnloadModule: "fbdev"
  (II) UnloadSubModule: "fbdevhw"
- (EE) Device(s) detected, but none match those in the config file.
- (EE)
-Fatal server error:
- (EE) no screens found(EE)
- (EE)
-Please consult the The X.Org Foundation support
-	 at http://wiki.x.org
- for help.
- (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
- (EE)
- (EE) Server terminated with error (1). Closing log file.
+ (II) FBDEV(0): Creating default Display subsection in Screen section
+	"Default Screen Section" for depth/fbbpp 24/32
+ (==) FBDEV(0): Depth 24, (==) framebuffer bpp 32
+ (==) FBDEV(0): RGB weight 888
+ (==) FBDEV(0): Default visual is TrueColor
+ (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
+ (II) FBDEV(0): hardware: EFI VGA (video memory: 8640kB)
+ (DB) xf86MergeOutputClassOptions unsupported bus type 0
+ (II) FBDEV(0): checking modes against framebuffer device...
+ (II) FBDEV(0): checking modes against monitor...
+ (II) FBDEV(0): Virtual size is 1920x1080 (pitch 1920)
+ (**) FBDEV(0):  Built-in mode "current": 207.4 MHz, 85.3 kHz, 77.2 Hz
+ (II) FBDEV(0): Modeline "current"x0.0  207.38  1920 1952 2192 2432  1080 1084 1088 1104 -hsync -vsync -csync (85.3 kHz b)
+ (==) FBDEV(0): DPI set to (96, 96)
+ (II) Loading sub module "fb"
+ (II) LoadModule: "fb"
+ (II) Module "fb" already built-in
+ (**) FBDEV(0): using shadow framebuffer
+ (II) Loading sub module "shadow"
+ (II) LoadModule: "shadow"
+ (II) Loading /usr/lib64/xorg/modules/libshadow.so
+ (II) Module shadow: vendor="X.Org Foundation"
+ 	compiled for 1.21.1.4, module version = 1.1.0
+ 	ABI class: X.Org ANSI C Emulation, version 0.4
+ (II) UnloadModule: "vesa"
+ (II) Unloading vesa
+ (II) FBDEV(0): FBIOBLANK: Invalid argument (Screen blanking not supported by kernel - disabling)
+ (==) FBDEV(0): Backing store enabled
+ (==) FBDEV(0): DPMS enabled
+ (II) Initializing extension Generic Event Extension
+ (II) Initializing extension SHAPE
+ (II) Initializing extension MIT-SHM
+ (II) Initializing extension XInputExtension
+ (II) Initializing extension XTEST
+ (II) Initializing extension BIG-REQUESTS
+ (II) Initializing extension SYNC
+ (II) Initializing extension XKEYBOARD
+ (II) Initializing extension XC-MISC
+ (II) Initializing extension SECURITY
+ (II) Initializing extension XFIXES
+ (II) Initializing extension RENDER
+ (II) Initializing extension RANDR
+ (II) Initializing extension COMPOSITE
+ (II) Initializing extension DAMAGE
+ (II) Initializing extension MIT-SCREEN-SAVER
+ (II) Initializing extension DOUBLE-BUFFER
+ (II) Initializing extension RECORD
+ (II) Initializing extension DPMS
+ (II) Initializing extension Present
+ (II) Initializing extension DRI3
+ (II) Initializing extension X-Resource
+ (II) Initializing extension XVideo
+ (II) Initializing extension XVideo-MotionCompensation
+ (II) Initializing extension GLX
+ (II) AIGLX: Screen 0 is not DRI2 capable
+ (II) IGLX: Loaded and initialized swrast
+ (II) GLX: Initialized DRISWRAST GL provider for screen 0
+ (II) Initializing extension XFree86-VidModeExtension
+ (II) Initializing extension XFree86-DGA
+ (II) Initializing extension XFree86-DRI
+ (II) Initializing extension DRI2
+ (II) config/udev: Adding input device Power Button (/dev/input/event1)
+ (**) Power Button: Applying InputClass "evdev keyboard catchall"
+ (**) Power Button: Applying InputClass "libinput keyboard catchall"
+ (**) Power Button: Applying InputClass "system-keyboard"
+ (II) LoadModule: "libinput"
+ (II) Loading /usr/lib64/xorg/modules/input/libinput_drv.so
+ (II) Module libinput: vendor="X.Org Foundation"
+ 	compiled for 1.21.1.4, module version = 1.2.1
+ 	Module class: X.Org XInput Driver
+ 	ABI class: X.Org XInput driver, version 24.4
+ (II) Using input driver 'libinput' for 'Power Button'
+ (**) Power Button: always reports core events
+ (**) Option "Device" "/dev/input/event1"
+ (II) event1  - Power Button: is tagged by udev as: Keyboard
+ (II) event1  - Power Button: device is a keyboard
+ (II) event1  - Power Button: device removed
+ (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1"
+ (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
+ (II) event1  - Power Button: is tagged by udev as: Keyboard
+ (II) event1  - Power Button: device is a keyboard
+ (II) config/udev: Adding input device Power Button (/dev/input/event0)
+ (**) Power Button: Applying InputClass "evdev keyboard catchall"
+ (**) Power Button: Applying InputClass "libinput keyboard catchall"
+ (**) Power Button: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'Power Button'
+ (**) Power Button: always reports core events
+ (**) Option "Device" "/dev/input/event0"
+ (II) event0  - Power Button: is tagged by udev as: Keyboard
+ (II) event0  - Power Button: device is a keyboard
+ (II) event0  - Power Button: device removed
+ (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0/event0"
+ (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 7)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
+ (II) event0  - Power Button: is tagged by udev as: Keyboard
+ (II) event0  - Power Button: device is a keyboard
+ (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event9)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event10)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event11)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event12)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device GASIA PS2toUSB Adapter (/dev/input/event2)
+ (**) GASIA PS2toUSB Adapter: Applying InputClass "evdev keyboard catchall"
+ (**) GASIA PS2toUSB Adapter: Applying InputClass "libinput keyboard catchall"
+ (**) GASIA PS2toUSB Adapter: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'GASIA PS2toUSB Adapter'
+ (**) GASIA PS2toUSB Adapter: always reports core events
+ (**) Option "Device" "/dev/input/event2"
+ (II) event2  - GASIA PS2toUSB Adapter: is tagged by udev as: Keyboard
+ (II) event2  - GASIA PS2toUSB Adapter: device is a keyboard
+ (II) event2  - GASIA PS2toUSB Adapter: device removed
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.0/0003:0E8F:0020.0001/input/input2/event2"
+ (II) XINPUT: Adding extended input device "GASIA PS2toUSB Adapter" (type: KEYBOARD, id 8)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
+ (II) event2  - GASIA PS2toUSB Adapter: is tagged by udev as: Keyboard
+ (II) event2  - GASIA PS2toUSB Adapter: device is a keyboard
+ (II) config/udev: Adding input device GASIA PS2toUSB Adapter Mouse (/dev/input/event3)
+ (**) GASIA PS2toUSB Adapter Mouse: Applying InputClass "evdev pointer catchall"
+ (**) GASIA PS2toUSB Adapter Mouse: Applying InputClass "libinput pointer catchall"
+ (II) Using input driver 'libinput' for 'GASIA PS2toUSB Adapter Mouse'
+ (**) GASIA PS2toUSB Adapter Mouse: always reports core events
+ (**) Option "Device" "/dev/input/event3"
+ (II) event3  - GASIA PS2toUSB Adapter Mouse: is tagged by udev as: Mouse
+ (II) event3  - GASIA PS2toUSB Adapter Mouse: device is a pointer
+ (II) event3  - GASIA PS2toUSB Adapter Mouse: device removed
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.1/0003:0E8F:0020.0002/input/input3/event3"
+ (II) XINPUT: Adding extended input device "GASIA PS2toUSB Adapter Mouse" (type: MOUSE, id 9)
+ (**) Option "AccelerationScheme" "none"
+ (**) GASIA PS2toUSB Adapter Mouse: (accel) selected scheme none/0
+ (**) GASIA PS2toUSB Adapter Mouse: (accel) acceleration factor: 2.000
+ (**) GASIA PS2toUSB Adapter Mouse: (accel) acceleration threshold: 4
+ (II) event3  - GASIA PS2toUSB Adapter Mouse: is tagged by udev as: Mouse
+ (II) event3  - GASIA PS2toUSB Adapter Mouse: device is a pointer
+ (II) config/udev: Adding input device GASIA PS2toUSB Adapter Mouse (/dev/input/mouse0)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device GASIA PS2toUSB Adapter System Control (/dev/input/event4)
+ (**) GASIA PS2toUSB Adapter System Control: Applying InputClass "evdev keyboard catchall"
+ (**) GASIA PS2toUSB Adapter System Control: Applying InputClass "libinput keyboard catchall"
+ (**) GASIA PS2toUSB Adapter System Control: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'GASIA PS2toUSB Adapter System Control'
+ (**) GASIA PS2toUSB Adapter System Control: always reports core events
+ (**) Option "Device" "/dev/input/event4"
+ (II) event4  - GASIA PS2toUSB Adapter System Control: is tagged by udev as: Keyboard
+ (II) event4  - GASIA PS2toUSB Adapter System Control: device is a keyboard
+ (II) event4  - GASIA PS2toUSB Adapter System Control: device removed
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.1/0003:0E8F:0020.0002/input/input4/event4"
+ (II) XINPUT: Adding extended input device "GASIA PS2toUSB Adapter System Control" (type: KEYBOARD, id 10)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
+ (II) event4  - GASIA PS2toUSB Adapter System Control: is tagged by udev as: Keyboard
+ (II) event4  - GASIA PS2toUSB Adapter System Control: device is a keyboard
+ (II) config/udev: Adding input device GASIA PS2toUSB Adapter Consumer Control (/dev/input/event5)
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "evdev keyboard catchall"
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "libinput keyboard catchall"
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'GASIA PS2toUSB Adapter Consumer Control'
+ (**) GASIA PS2toUSB Adapter Consumer Control: always reports core events
+ (**) Option "Device" "/dev/input/event5"
+ (II) event5  - GASIA PS2toUSB Adapter Consumer Control: is tagged by udev as: Keyboard
+ (II) event5  - GASIA PS2toUSB Adapter Consumer Control: device is a keyboard
+ (II) event5  - GASIA PS2toUSB Adapter Consumer Control: device removed
+ (II) libinput: GASIA PS2toUSB Adapter Consumer Control: needs a virtual subdevice
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.1/0003:0E8F:0020.0002/input/input5/event5"
+ (II) XINPUT: Adding extended input device "GASIA PS2toUSB Adapter Consumer Control" (type: MOUSE, id 11)
+ (**) Option "AccelerationScheme" "none"
+ (**) GASIA PS2toUSB Adapter Consumer Control: (accel) selected scheme none/0
+ (**) GASIA PS2toUSB Adapter Consumer Control: (accel) acceleration factor: 2.000
+ (**) GASIA PS2toUSB Adapter Consumer Control: (accel) acceleration threshold: 4
+ (II) event5  - GASIA PS2toUSB Adapter Consumer Control: is tagged by udev as: Keyboard
+ (II) event5  - GASIA PS2toUSB Adapter Consumer Control: device is a keyboard
+ (II) config/udev: Adding input device Logitech K330 (/dev/input/event7)
+ (**) Logitech K330: Applying InputClass "evdev keyboard catchall"
+ (**) Logitech K330: Applying InputClass "libinput keyboard catchall"
+ (**) Logitech K330: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'Logitech K330'
+ (**) Logitech K330: always reports core events
+ (**) Option "Device" "/dev/input/event7"
+ (II) event7  - Logitech K330: is tagged by udev as: Keyboard
+ (II) event7  - Logitech K330: device is a keyboard
+ (II) event7  - Logitech K330: device removed
+ (II) libinput: Logitech K330: needs a virtual subdevice
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/0003:046D:C52B.0005/0003:046D:4016.0007/input/input20/event7"
+ (II) XINPUT: Adding extended input device "Logitech K330" (type: MOUSE, id 12)
+ (**) Option "AccelerationScheme" "none"
+ (**) Logitech K330: (accel) selected scheme none/0
+ (**) Logitech K330: (accel) acceleration factor: 2.000
+ (**) Logitech K330: (accel) acceleration threshold: 4
+ (II) event7  - Logitech K330: is tagged by udev as: Keyboard
+ (II) event7  - Logitech K330: device is a keyboard
+ (II) config/udev: Adding input device Logitech M215 2nd Gen (/dev/input/event6)
+ (**) Logitech M215 2nd Gen: Applying InputClass "evdev pointer catchall"
+ (**) Logitech M215 2nd Gen: Applying InputClass "libinput pointer catchall"
+ (II) Using input driver 'libinput' for 'Logitech M215 2nd Gen'
+ (**) Logitech M215 2nd Gen: always reports core events
+ (**) Option "Device" "/dev/input/event6"
+ (II) event6  - Logitech M215 2nd Gen: is tagged by udev as: Mouse
+ (II) event6  - Logitech M215 2nd Gen: device is a pointer
+ (II) event6  - Logitech M215 2nd Gen: device removed
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/0003:046D:C52B.0005/0003:046D:401B.0006/input/input19/event6"
+ (II) XINPUT: Adding extended input device "Logitech M215 2nd Gen" (type: MOUSE, id 13)
+ (**) Option "AccelerationScheme" "none"
+ (**) Logitech M215 2nd Gen: (accel) selected scheme none/0
+ (**) Logitech M215 2nd Gen: (accel) acceleration factor: 2.000
+ (**) Logitech M215 2nd Gen: (accel) acceleration threshold: 4
+ (II) event6  - Logitech M215 2nd Gen: is tagged by udev as: Mouse
+ (II) event6  - Logitech M215 2nd Gen: device is a pointer
+ (II) config/udev: Adding input device Logitech M215 2nd Gen (/dev/input/mouse1)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event13)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event14)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event15)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event16)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event17)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (II) config/udev: Adding input device PC Speaker (/dev/input/event8)
+ (II) No input driver specified, ignoring this device.
+ (II) This device may have been added with another device file.
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "evdev keyboard catchall"
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "libinput keyboard catchall"
+ (**) GASIA PS2toUSB Adapter Consumer Control: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'GASIA PS2toUSB Adapter Consumer Control'
+ (**) GASIA PS2toUSB Adapter Consumer Control: always reports core events
+ (**) Option "Device" "/dev/input/event5"
+ (II) libinput: GASIA PS2toUSB Adapter Consumer Control: is a virtual subdevice
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.1/0003:0E8F:0020.0002/input/input5/event5"
+ (II) XINPUT: Adding extended input device "GASIA PS2toUSB Adapter Consumer Control" (type: KEYBOARD, id 14)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
+ (**) Logitech K330: Applying InputClass "evdev keyboard catchall"
+ (**) Logitech K330: Applying InputClass "libinput keyboard catchall"
+ (**) Logitech K330: Applying InputClass "system-keyboard"
+ (II) Using input driver 'libinput' for 'Logitech K330'
+ (**) Logitech K330: always reports core events
+ (**) Option "Device" "/dev/input/event7"
+ (II) libinput: Logitech K330: is a virtual subdevice
+ (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/0003:046D:C52B.0005/0003:046D:4016.0007/input/input20/event7"
+ (II) XINPUT: Adding extended input device "Logitech K330" (type: KEYBOARD, id 15)
+ (**) Option "xkb_model" "pc105"
+ (**) Option "xkb_layout" "de"
+ (**) Option "xkb_variant" "nodeadkeys"
+ (**) Option "xkb_options" "terminate:ctrl_alt_bksp"

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