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So, I've just configured xbacklight following this archwiki article and after some time it randomly stops working (usually after Hibernation, but it's not always the case)
Echoing value to /sys/class/backlight/intel_backlight/brightness still works fine, so apparently it's just a Xbacklight issue.
In my ~/.local/share/xorg/Xorg.0.log I found the following:
[ 2063.419] (**) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
...
[ 6183.368] (EE) intel(0): Failed to set backlight intel_backlight for output eDP1, disabling
Here's a full Xorg log:
[ 11092.470] (WW) Failed to open protocol names file lib/xorg/protocol.txt
[ 11092.470]
X.Org X Server 1.20.5
X Protocol Version 11, Revision 0
[ 11092.470] Build Operating System: Linux Arch Linux
[ 11092.470] Current Operating System: Linux ciek 5.2.0-arch2-1-ARCH #1 SMP PREEMPT Mon Jul 8 18:18:54 UTC 2019 x86_64
[ 11092.470] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=4b530b19-b6b4-4787-8c86-87215a59db54 rw audit=0 loglevel=3 quiet
[ 11092.470] Build Date: 30 June 2019 09:52:01AM
[ 11092.470]
[ 11092.470] Current version of pixman: 0.38.4
[ 11092.470] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 11092.470] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 11092.471] (==) Log file: "/home/m/.local/share/xorg/Xorg.0.log", Time: Tue Jul 16 14:44:02 2019
[ 11092.471] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 11092.471] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 11092.471] (==) No Layout section. Using the first Screen section.
[ 11092.471] (==) No screen section available. Using defaults.
[ 11092.471] (**) |-->Screen "Default Screen Section" (0)
[ 11092.471] (**) | |-->Monitor "<default monitor>"
[ 11092.471] (==) No device specified for screen "Default Screen Section".
Using the first device section listed.
[ 11092.471] (**) | |-->Device "Intel Graphics"
[ 11092.471] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[ 11092.471] (==) Automatically adding devices
[ 11092.471] (==) Automatically enabling devices
[ 11092.471] (==) Automatically adding GPU devices
[ 11092.471] (==) Automatically binding GPU devices
[ 11092.471] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 11092.471] (WW) The directory "/usr/share/fonts/misc" does not exist.
[ 11092.471] Entry deleted from font path.
[ 11092.471] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[ 11092.471] Entry deleted from font path.
[ 11092.471] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[ 11092.471] Entry deleted from font path.
[ 11092.471] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[ 11092.471] Entry deleted from font path.
[ 11092.471] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[ 11092.471] Entry deleted from font path.
[ 11092.471] (==) FontPath set to:
/usr/share/fonts/TTF
[ 11092.471] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 11092.471] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 11092.471] (II) Module ABI versions:
[ 11092.471] X.Org ANSI C Emulation: 0.4
[ 11092.471] X.Org Video Driver: 24.0
[ 11092.471] X.Org XInput driver : 24.1
[ 11092.471] X.Org Server Extension : 10.0
[ 11092.472] (++) using VT number 1
[ 11092.473] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_311
[ 11092.474] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 11092.475] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 10 paused 0
[ 11092.475] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 11092.476] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 11 paused 0
[ 11092.477] (--) PCI:*(0@0:2:0) 8086:1916:17aa:3824 rev 7, Mem @ 0x92000000/16777216, 0xa0000000/268435456, I/O @ 0x00005000/64, BIOS @ 0x????????/131072
[ 11092.477] (--) PCI: (3@0:0:0) 10de:134f:17aa:3824 rev 162, Mem @ 0x93000000/16777216, 0x80000000/268435456, 0x90000000/33554432, I/O @ 0x00003000/128
[ 11092.477] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 11092.477] (II) LoadModule: "glx"
[ 11092.478] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 11092.479] (II) Module glx: vendor="X.Org Foundation"
[ 11092.479] compiled for 1.20.5, module version = 1.0.0
[ 11092.479] ABI class: X.Org Server Extension, version 10.0
[ 11092.479] (II) LoadModule: "intel"
[ 11092.479] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[ 11092.479] (II) Module intel: vendor="X.Org Foundation"
[ 11092.479] compiled for 1.20.4, module version = 2.99.917
[ 11092.479] Module class: X.Org Video Driver
[ 11092.479] ABI class: X.Org Video Driver, version 24.0
[ 11092.479] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[ 11092.480] (II) intel: Driver for Intel(R) HD Graphics
[ 11092.480] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[ 11092.480] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
[ 11092.480] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
[ 11092.480] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20190417
[ 11092.480] (II) intel(0): SNA compiled from 2.99.917-863-g6afed33b
[ 11092.496] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[ 11092.497] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 520
[ 11092.497] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2; using a maximum of 2 threads
[ 11092.497] (II) intel(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 11092.497] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[ 11092.497] (==) intel(0): RGB weight 888
[ 11092.497] (==) intel(0): Default visual is TrueColor
[ 11092.497] (**) intel(0): Option "Backlight" "intel_backlight"
[ 11092.497] (II) intel(0): Output eDP1 has no monitor section
[ 11092.497] (**) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
[ 11092.497] (II) intel(0): Enabled output eDP1
[ 11092.497] (II) intel(0): Output HDMI1 has no monitor section
[ 11092.498] (II) intel(0): Enabled output HDMI1
[ 11092.498] (II) intel(0): Output DP1 has no monitor section
[ 11092.498] (II) intel(0): Enabled output DP1
[ 11092.498] (II) intel(0): Output HDMI2 has no monitor section
[ 11092.498] (II) intel(0): Enabled output HDMI2
[ 11092.498] (--) intel(0): Using a maximum size of 256x256 for hardware cursors
[ 11092.498] (II) intel(0): Output VIRTUAL1 has no monitor section
[ 11092.498] (II) intel(0): Enabled output VIRTUAL1
[ 11092.498] (--) intel(0): Output eDP1 using initial mode 1366x768 on pipe 0
[ 11092.498] (==) intel(0): TearFree disabled
[ 11092.498] (==) intel(0): Using gamma correction (1.0, 1.0, 1.0)
[ 11092.498] (==) intel(0): DPI set to (96, 96)
[ 11092.498] (II) Loading sub module "dri3"
[ 11092.498] (II) LoadModule: "dri3"
[ 11092.498] (II) Module "dri3" already built-in
[ 11092.498] (II) Loading sub module "dri2"
[ 11092.498] (II) LoadModule: "dri2"
[ 11092.498] (II) Module "dri2" already built-in
[ 11092.498] (II) Loading sub module "present"
[ 11092.498] (II) LoadModule: "present"
[ 11092.498] (II) Module "present" already built-in
[ 11092.498] (II) intel(0): SNA initialized with Skylake (gen9) backend
[ 11092.498] (==) intel(0): Backing store enabled
[ 11092.498] (==) intel(0): Silken mouse disabled
[ 11092.498] (II) intel(0): HW Cursor enabled
[ 11092.498] (==) intel(0): DPMS enabled
[ 11092.499] (==) intel(0): Display hotplug detection enabled
[ 11092.499] (II) intel(0): [DRI2] Setup complete
[ 11092.499] (II) intel(0): [DRI2] DRI driver: i965
[ 11092.499] (II) intel(0): [DRI2] VDPAU driver: va_gl
[ 11092.499] (II) intel(0): direct rendering: DRI2 DRI3 enabled
[ 11092.499] (II) intel(0): hardware support for Present enabled
[ 11092.499] (II) Initializing extension Generic Event Extension
[ 11092.499] (II) Initializing extension SHAPE
[ 11092.499] (II) Initializing extension MIT-SHM
[ 11092.499] (II) Initializing extension XInputExtension
[ 11092.499] (II) Initializing extension XTEST
[ 11092.499] (II) Initializing extension BIG-REQUESTS
[ 11092.499] (II) Initializing extension SYNC
[ 11092.499] (II) Initializing extension XKEYBOARD
[ 11092.499] (II) Initializing extension XC-MISC
[ 11092.499] (II) Initializing extension SECURITY
[ 11092.499] (II) Initializing extension XFIXES
[ 11092.499] (II) Initializing extension RENDER
[ 11092.499] (II) Initializing extension RANDR
[ 11092.499] (II) Initializing extension COMPOSITE
[ 11092.499] (II) Initializing extension DAMAGE
[ 11092.499] (II) Initializing extension MIT-SCREEN-SAVER
[ 11092.499] (II) Initializing extension DOUBLE-BUFFER
[ 11092.499] (II) Initializing extension RECORD
[ 11092.499] (II) Initializing extension DPMS
[ 11092.499] (II) Initializing extension Present
[ 11092.499] (II) Initializing extension DRI3
[ 11092.499] (II) Initializing extension X-Resource
[ 11092.499] (II) Initializing extension XVideo
[ 11092.499] (II) Initializing extension XVideo-MotionCompensation
[ 11092.499] (II) Initializing extension GLX
[ 11092.509] (II) AIGLX: Loaded and initialized i965
[ 11092.509] (II) GLX: Initialized DRI2 GL provider for screen 0
[ 11092.509] (II) Initializing extension XFree86-VidModeExtension
[ 11092.509] (II) Initializing extension XFree86-DGA
[ 11092.509] (II) Initializing extension XFree86-DRI
[ 11092.509] (II) Initializing extension DRI2
[ 11092.510] (II) intel(0): switch to mode 1366x768@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 11092.515] (II) intel(0): Setting screen physical size to 361 x 203
[ 11092.544] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[ 11092.544] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[ 11092.544] (**) Power Button: Applying InputClass "system-keyboard"
[ 11092.544] (II) LoadModule: "libinput"
[ 11092.544] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so
[ 11092.545] (II) Module libinput: vendor="X.Org Foundation"
[ 11092.545] compiled for 1.20.3, module version = 0.28.2
[ 11092.545] Module class: X.Org XInput Driver
[ 11092.545] ABI class: X.Org XInput driver, version 24.1
[ 11092.545] (II) Using input driver 'libinput' for 'Power Button'
[ 11092.546] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 16 paused 0
[ 11092.546] (**) Power Button: always reports core events
[ 11092.546] (**) Option "Device" "/dev/input/event2"
[ 11092.546] (**) Option "_source" "server/udev"
[ 11092.548] (II) event2 - Power Button: is tagged by udev as: Keyboard
[ 11092.548] (II) event2 - Power Button: device is a keyboard
[ 11092.548] (II) event2 - Power Button: device removed
[ 11092.548] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2/event2"
[ 11092.548] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[ 11092.548] (**) Option "xkb_layout" "pl"
[ 11092.566] (II) event2 - Power Button: is tagged by udev as: Keyboard
[ 11092.566] (II) event2 - Power Button: device is a keyboard
[ 11092.566] (II) config/udev: Adding input device Video Bus (/dev/input/event7)
[ 11092.566] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[ 11092.566] (**) Video Bus: Applying InputClass "system-keyboard"
[ 11092.566] (II) Using input driver 'libinput' for 'Video Bus'
[ 11092.567] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 19 paused 0
[ 11092.567] (**) Video Bus: always reports core events
[ 11092.567] (**) Option "Device" "/dev/input/event7"
[ 11092.567] (**) Option "_source" "server/udev"
[ 11092.568] (II) event7 - Video Bus: is tagged by udev as: Keyboard
[ 11092.568] (II) event7 - Video Bus: device is a keyboard
[ 11092.568] (II) event7 - Video Bus: device removed
[ 11092.568] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input8/event7"
[ 11092.568] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 7)
[ 11092.568] (**) Option "xkb_layout" "pl"
[ 11092.569] (II) event7 - Video Bus: is tagged by udev as: Keyboard
[ 11092.569] (II) event7 - Video Bus: device is a keyboard
[ 11092.569] (II) config/udev: Adding input device Video Bus (/dev/input/event8)
[ 11092.569] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[ 11092.569] (**) Video Bus: Applying InputClass "system-keyboard"
[ 11092.569] (II) Using input driver 'libinput' for 'Video Bus'
[ 11092.570] (II) systemd-logind: got fd for /dev/input/event8 13:72 fd 20 paused 0
[ 11092.570] (**) Video Bus: always reports core events
[ 11092.570] (**) Option "Device" "/dev/input/event8"
[ 11092.570] (**) Option "_source" "server/udev"
[ 11092.571] (II) event8 - Video Bus: is tagged by udev as: Keyboard
[ 11092.571] (II) event8 - Video Bus: device is a keyboard
[ 11092.571] (II) event8 - Video Bus: device removed
[ 11092.571] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:42/LNXVIDEO:01/input/input9/event8"
[ 11092.571] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 8)
[ 11092.571] (**) Option "xkb_layout" "pl"
[ 11092.572] (II) event8 - Video Bus: is tagged by udev as: Keyboard
[ 11092.572] (II) event8 - Video Bus: device is a keyboard
[ 11092.573] (II) config/udev: Adding input device Power Button (/dev/input/event1)
[ 11092.573] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[ 11092.573] (**) Power Button: Applying InputClass "system-keyboard"
[ 11092.573] (II) Using input driver 'libinput' for 'Power Button'
[ 11092.573] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 21 paused 0
[ 11092.573] (**) Power Button: always reports core events
[ 11092.573] (**) Option "Device" "/dev/input/event1"
[ 11092.573] (**) Option "_source" "server/udev"
[ 11092.574] (II) event1 - Power Button: is tagged by udev as: Keyboard
[ 11092.574] (II) event1 - Power Button: device is a keyboard
[ 11092.574] (II) event1 - Power Button: device removed
[ 11092.574] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1/event1"
[ 11092.574] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 9)
[ 11092.574] (**) Option "xkb_layout" "pl"
[ 11092.575] (II) event1 - Power Button: is tagged by udev as: Keyboard
[ 11092.575] (II) event1 - Power Button: device is a keyboard
[ 11092.575] (II) config/udev: Adding input device Lid Switch (/dev/input/event0)
[ 11092.575] (II) No input driver specified, ignoring this device.
[ 11092.575] (II) This device may have been added with another device file.
[ 11092.576] (II) config/udev: Adding input device EasyCamera: EasyCamera (/dev/input/event6)
[ 11092.576] (**) EasyCamera: EasyCamera: Applying InputClass "libinput keyboard catchall"
[ 11092.576] (**) EasyCamera: EasyCamera: Applying InputClass "system-keyboard"
[ 11092.576] (II) Using input driver 'libinput' for 'EasyCamera: EasyCamera'
[ 11092.577] (II) systemd-logind: got fd for /dev/input/event6 13:70 fd 22 paused 0
[ 11092.577] (**) EasyCamera: EasyCamera: always reports core events
[ 11092.577] (**) Option "Device" "/dev/input/event6"
[ 11092.577] (**) Option "_source" "server/udev"
[ 11092.578] (II) event6 - EasyCamera: EasyCamera: is tagged by udev as: Keyboard
[ 11092.578] (II) event6 - EasyCamera: EasyCamera: device is a keyboard
[ 11092.578] (II) event6 - EasyCamera: EasyCamera: device removed
[ 11092.578] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/input/input7/event6"
[ 11092.578] (II) XINPUT: Adding extended input device "EasyCamera: EasyCamera" (type: KEYBOARD, id 10)
[ 11092.578] (**) Option "xkb_layout" "pl"
[ 11092.579] (II) event6 - EasyCamera: EasyCamera: is tagged by udev as: Keyboard
[ 11092.579] (II) event6 - EasyCamera: EasyCamera: device is a keyboard
[ 11092.579] (II) config/udev: Adding input device Ideapad extra buttons (/dev/input/event4)
[ 11092.579] (**) Ideapad extra buttons: Applying InputClass "libinput keyboard catchall"
[ 11092.579] (**) Ideapad extra buttons: Applying InputClass "system-keyboard"
[ 11092.579] (II) Using input driver 'libinput' for 'Ideapad extra buttons'
[ 11092.580] (II) systemd-logind: got fd for /dev/input/event4 13:68 fd 23 paused 0
[ 11092.580] (**) Ideapad extra buttons: always reports core events
[ 11092.580] (**) Option "Device" "/dev/input/event4"
[ 11092.580] (**) Option "_source" "server/udev"
[ 11092.581] (II) event4 - Ideapad extra buttons: is tagged by udev as: Keyboard
[ 11092.581] (II) event4 - Ideapad extra buttons: device is a keyboard
[ 11092.581] (II) event4 - Ideapad extra buttons: device removed
[ 11092.581] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/input/input5/event4"
[ 11092.581] (II) XINPUT: Adding extended input device "Ideapad extra buttons" (type: KEYBOARD, id 11)
[ 11092.581] (**) Option "xkb_layout" "pl"
[ 11092.582] (II) event4 - Ideapad extra buttons: is tagged by udev as: Keyboard
[ 11092.582] (II) event4 - Ideapad extra buttons: device is a keyboard
[ 11092.583] (II) config/udev: Adding input device HDA Intel PCH Mic (/dev/input/event9)
[ 11092.583] (II) No input driver specified, ignoring this device.
[ 11092.583] (II) This device may have been added with another device file.
[ 11092.583] (II) config/udev: Adding input device HDA Intel PCH Headphone (/dev/input/event10)
[ 11092.583] (II) No input driver specified, ignoring this device.
[ 11092.583] (II) This device may have been added with another device file.
[ 11092.583] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=3 (/dev/input/event11)
[ 11092.583] (II) No input driver specified, ignoring this device.
[ 11092.583] (II) This device may have been added with another device file.
[ 11092.584] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=7 (/dev/input/event12)
[ 11092.584] (II) No input driver specified, ignoring this device.
[ 11092.584] (II) This device may have been added with another device file.
[ 11092.584] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=8 (/dev/input/event13)
[ 11092.584] (II) No input driver specified, ignoring this device.
[ 11092.584] (II) This device may have been added with another device file.
[ 11092.584] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=9 (/dev/input/event14)
[ 11092.584] (II) No input driver specified, ignoring this device.
[ 11092.584] (II) This device may have been added with another device file.
[ 11092.584] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=10 (/dev/input/event15)
[ 11092.585] (II) No input driver specified, ignoring this device.
[ 11092.585] (II) This device may have been added with another device file.
[ 11092.585] (II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event3)
[ 11092.585] (**) AT Translated Set 2 keyboard: Applying InputClass "libinput keyboard catchall"
[ 11092.585] (**) AT Translated Set 2 keyboard: Applying InputClass "system-keyboard"
[ 11092.585] (II) Using input driver 'libinput' for 'AT Translated Set 2 keyboard'
[ 11092.586] (II) systemd-logind: got fd for /dev/input/event3 13:67 fd 24 paused 0
[ 11092.586] (**) AT Translated Set 2 keyboard: always reports core events
[ 11092.586] (**) Option "Device" "/dev/input/event3"
[ 11092.586] (**) Option "_source" "server/udev"
[ 11092.587] (II) event3 - AT Translated Set 2 keyboard: is tagged by udev as: Keyboard
[ 11092.587] (II) event3 - AT Translated Set 2 keyboard: device is a keyboard
[ 11092.587] (II) event3 - AT Translated Set 2 keyboard: device removed
[ 11092.587] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio0/input/input3/event3"
[ 11092.587] (II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD, id 12)
[ 11092.587] (**) Option "xkb_layout" "pl"
[ 11092.588] (II) event3 - AT Translated Set 2 keyboard: is tagged by udev as: Keyboard
[ 11092.588] (II) event3 - AT Translated Set 2 keyboard: device is a keyboard
[ 11092.589] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event5)
[ 11092.589] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "libinput touchpad catchall"
[ 11092.589] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
[ 11092.589] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "Default clickpad buttons"
[ 11092.589] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad"
[ 11092.589] (II) LoadModule: "synaptics"
[ 11092.589] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[ 11092.589] (II) Module synaptics: vendor="X.Org Foundation"
[ 11092.589] compiled for 1.20.0, module version = 1.9.1
[ 11092.589] Module class: X.Org XInput Driver
[ 11092.589] ABI class: X.Org XInput driver, version 24.1
[ 11092.589] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[ 11092.590] (II) systemd-logind: got fd for /dev/input/event5 13:69 fd 25 paused 0
[ 11092.590] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 11092.590] (**) Option "Device" "/dev/input/event5"
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: x-axis range 1314 - 5670 (res 44)
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: y-axis range 1098 - 4794 (res 76)
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: pressure range 0 - 255
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: finger width range 0 - 15
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: buttons: left right double triple
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: Vendor 0x2 Product 0x7
[ 11092.590] (**) Option "FingerLow" "30"
[ 11092.590] (**) Option "FingerHigh" "50"
[ 11092.590] (**) Option "MaxTapTime" "125"
[ 11092.590] (**) Option "EmulateTwoFingerMinZ" "40"
[ 11092.590] (**) Option "EmulateTwoFingerMinW" "8"
[ 11092.590] (**) Option "VertScrollDelta" "-60"
[ 11092.590] (**) Option "HorizScrollDelta" "-60"
[ 11092.590] (**) Option "VertEdgeScroll" "off"
[ 11092.590] (**) Option "HorizEdgeScroll" "off"
[ 11092.590] (**) Option "VertTwoFingerScroll" "on"
[ 11092.590] (**) Option "HorizTwoFingerScroll" "on"
[ 11092.590] (**) Option "TapButton1" "1"
[ 11092.590] (**) Option "TapButton2" "3"
[ 11092.590] (**) Option "TapButton3" "2"
[ 11092.590] (**) Option "CircularScrolling" "on"
[ 11092.590] (**) Option "CircScrollTrigger" "2"
[ 11092.590] (**) Option "CoastingSpeed" "0"
[ 11092.590] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 11092.590] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 11092.590] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input6/event5"
[ 11092.590] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD, id 13)
[ 11092.590] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MinSpeed is now constant deceleration 2.5
[ 11092.590] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MaxSpeed is now 1.75
[ 11092.591] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) AccelFactor is now 0.035
[ 11092.591] (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1
[ 11092.591] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration profile 1
[ 11092.591] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000
[ 11092.591] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4
[ 11092.591] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 11092.591] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse0)
[ 11092.591] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass "touchpad ignore duplicates"
[ 11092.621] (EE) Error loading keymap /tmp/server-0.xkm
[ 11092.655] (II) intel(0): EDID vendor "CMN", prod id 5596
[ 11092.655] (II) intel(0): Printing DDC gathered Modelines:
[ 11092.655] (II) intel(0): Modeline "1366x768"x0.0 76.42 1366 1434 1479 1592 768 772 779 800 -hsync -vsync (48.0 kHz eP)
[ 12003.697] (EE) intel(0): Failed to set backlight intel_backlight for output eDP1, disabling
And here is a Xbacklight strace output:
execve("/usr/bin/xbacklight", ["xbacklight"], 0x7ffe1cbb2740 /* 45 vars */) = 0
brk(NULL) = 0x559bbca8c000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffebbbd51d0) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=102461, ...}) = 0
mmap(NULL, 102461, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fc317e8f000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libxcb-randr.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 p\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=67288, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc317e8d000
mmap(NULL, 69672, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317e7b000
mprotect(0x7fc317e82000, 36864, PROT_NONE) = 0
mmap(0x7fc317e82000, 20480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fc317e82000
mmap(0x7fc317e87000, 12288, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7fc317e87000
mmap(0x7fc317e8b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xf000) = 0x7fc317e8b000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libxcb-util.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300#\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=22208, ...}) = 0
mmap(NULL, 2117648, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317c75000
mprotect(0x7fc317c79000, 2097152, PROT_NONE) = 0
mmap(0x7fc317e79000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7fc317e79000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libxcb.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \300\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=165624, ...}) = 0
mmap(NULL, 168200, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317c4b000
mmap(0x7fc317c57000, 77824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7fc317c57000
mmap(0x7fc317c6a000, 36864, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1f000) = 0x7fc317c6a000
mmap(0x7fc317c73000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x27000) = 0x7fc317c73000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360o\2\0\0\0\0\0"..., 832) = 832
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=2133648, ...}) = 0
lseek(3, 64, SEEK_SET) = 64
read(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784) = 784
lseek(3, 848, SEEK_SET) = 848
read(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32) = 32
lseek(3, 880, SEEK_SET) = 880
read(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\250\257l\201\313(\243{\363\245F\227\v\366B$"..., 68) = 68
mmap(NULL, 1844408, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317a88000
mprotect(0x7fc317aad000, 1654784, PROT_NONE) = 0
mmap(0x7fc317aad000, 1351680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7fc317aad000
mmap(0x7fc317bf7000, 299008, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16f000) = 0x7fc317bf7000
mmap(0x7fc317c41000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7fc317c41000
mmap(0x7fc317c47000, 13496, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fc317c47000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libXau.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \20\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=13960, ...}) = 0
mmap(NULL, 16424, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317a83000
mmap(0x7fc317a84000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fc317a84000
mmap(0x7fc317a85000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fc317a85000
mmap(0x7fc317a86000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fc317a86000
close(3) = 0
openat(AT_FDCWD, "/usr/lib/libXdmcp.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=26224, ...}) = 0
mmap(NULL, 28688, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fc317a7b000
mmap(0x7fc317a7d000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fc317a7d000
mmap(0x7fc317a7f000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7fc317a7f000
mmap(0x7fc317a81000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7fc317a81000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc317a79000
arch_prctl(ARCH_SET_FS, 0x7fc317a7a280) = 0
mprotect(0x7fc317c41000, 12288, PROT_READ) = 0
mprotect(0x7fc317a81000, 4096, PROT_READ) = 0
mprotect(0x7fc317a86000, 4096, PROT_READ) = 0
mprotect(0x7fc317c73000, 4096, PROT_READ) = 0
mprotect(0x7fc317e79000, 4096, PROT_READ) = 0
mprotect(0x7fc317e8b000, 4096, PROT_READ) = 0
mprotect(0x559bbb89d000, 4096, PROT_READ) = 0
mprotect(0x7fc317ed3000, 4096, PROT_READ) = 0
munmap(0x7fc317e8f000, 102461) = 0
brk(NULL) = 0x559bbca8c000
brk(0x559bbcaad000) = 0x559bbcaad000
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path=@"/tmp/.X11-unix/X0"}, 20) = 0
getpeername(3, {sa_family=AF_UNIX, sun_path=@"/tmp/.X11-unix/X0"}, [124->20]) = 0
uname({sysname="Linux", nodename="ciek", ...}) = 0
access("/home/m/.Xauthority", R_OK) = 0
openat(AT_FDCWD, "/home/m/.Xauthority", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0600, st_size=49, ...}) = 0
read(4, "\1\0\0\4ciek\0\0010\0\22MIT-MAGIC-COOKIE-1\0"..., 4096) = 49
read(4, "", 4096) = 0
close(4) = 0
getsockname(3, {sa_family=AF_UNIX}, [124->2]) = 0
fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="l\0\v\0\0\0\22\0\20\0\0\0", iov_len=12}, {iov_base="", iov_len=0}, {iov_base="MIT-MAGIC-COOKIE-1", iov_len=18}, {iov_base="\0\0", iov_len=2}, {iov_base="zb\306\355.\307~\270\315\346\375\231zs\224S", iov_len=16}, {iov_base="", iov_len=0}], 6) = 48
recvfrom(3, 0x559bbca8d5c0, 8, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvfrom(3, "\1\0\v\0\0\0g\2", 8, 0, NULL, NULL) = 8
recvfrom(3, "\210.\267\0\0\0\0\4\377\377\37\0\0\1\0\0\24\0\377\377\1\7\0\0 \10\377\0\0\0\0"..., 2460, 0, NULL, NULL) = 2460
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="b\0\4\0\5\0\0\0RANDR\0\0\0", iov_len=16}], 1) = 16
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\1\0\0\0\0\0\1\214Y\223\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\0\3\0\1\0\0\0\2\0\0\0", iov_len=12}], 1) = 12
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\2\0\0\0\0\0\1\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\20\1\5\0\t\0\0\0Backlight\0\0\0\20\1\5\0\t\0\0\0BACK"..., iov_len=40}], 1) = 40
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\3\0\0\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 64
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\31\2\0i\1\0\0", iov_len=8}], 1) = 8
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\5\0\365\0\0\0\366A\251\0\266B\251\0\4\0\5\0\30\0\260\0\0\0\0\0\0\0\0\0"..., iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 1012
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\17\7\0C\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0", iov_len=28}], 1) = 28
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\6\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\17\7\0D\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0", iov_len=28}], 1) = 28
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\7\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\17\7\0E\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0", iov_len=28}], 1) = 28
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\10\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\17\7\0F\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0", iov_len=28}], 1) = 28
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\t\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\214\17\7\0G\0\0\0Q\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0", iov_len=28}], 1) = 28
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="+\0\1\0", iov_len=4}], 1) = 4
poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\1\v\0\0\0\0\0\6\0 \3\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
exit_group(0) = ?
+++ exited with 0 +++
Thanks in advance for help
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