Unable to start x server

[suyashmahar]

I run into the following error on starting loweagent using ./loweagent -e X

[INFO]{config}: Config loaded successfully
[INFO]{main}: Determining program mode from exec param: X
[INFO]{main}: Main program name is X
[INFO]{main}: App config identified
[INFO]{main}: Device handler configured
[INFO]{checkexposer}: Ensuring LoWeExposer handled devices...
[INFO]{fb}: Path: /dev/fb0
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{checkexposer}: Connecting to LoWeExposer on port no. 12345
[INFO]{fb}: Path: /dev/fb0
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{main}: Checking the availability of all devices...
[INFO]{fb}: Path: /dev/fb0
[INFO]{fb}: Device check ok
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{tty}: Device check ok
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{mice}: Device check ok
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{kbd}: Device check ok
[INFO]{main}: Waiting for process to start...
[INFO]{main}: X will be started
[INFO]{main}: PID: 8812
[INFO]{starter}: Starting X
[INFO]{main}: Spinning...

X.Org X Server 1.19.6
Release Date: 2017-12-20
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-138-generic x86_64 Ubuntu
Current Operating System: Linux suyash-pc 4.4.0-17763-Microsoft #194-Microsoft Mon Dec 03 17:58:00 PST 2018 x86_64
Kernel command line: BOOT_IMAGE=/kernel init=/init ro
Build Date: 25 October 2018  04:11:27PM
xorg-server 2:1.19.6-1ubuntu4.2 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.34.0
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/home/suyash/.local/share/xorg/Xorg.0.log", Time: Sun Jan 13 00:32:48 2019
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE)
Fatal server error:
(EE) parse_vt_settings: Cannot open /dev/tty0 (Input/output error)
(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 "/home/suyash/.local/share/xorg/Xorg.0.log" for additional information.
(EE)
(EE) Server terminated with error (1). Closing log file.

The x log file output is:

[283112.059]
X.Org X Server 1.19.6
Release Date: 2017-12-20
[283112.060] X Protocol Version 11, Revision 0
[283112.060] Build Operating System: Linux 4.4.0-138-generic x86_64 Ubuntu
[283112.060] Current Operating System: Linux suyash-pc 4.4.0-17763-Microsoft #194-Microsoft Mon Dec 03 17:58:00 PST 2018 x86_64
[283112.061] Kernel command line: BOOT_IMAGE=/kernel init=/init ro
[283112.061] Build Date: 25 October 2018  04:11:27PM
[283112.062] xorg-server 2:1.19.6-1ubuntu4.2 (For technical support please see http://www.ubuntu.com/support)
[283112.191] Current version of pixman: 0.34.0
[283112.233]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[283112.246] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[283112.307] (==) Log file: "/home/suyash/.local/share/xorg/Xorg.0.log", Time: Sun Jan 13 00:32:48 2019
[283112.328] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[283112.333] (==) ServerLayout "Default Layout"
[283112.334] (==) No screen section available. Using defaults.
[283112.334] (**) |-->Screen "Default Screen Section" (0)
[283112.334] (**) |   |-->Monitor "<default monitor>"
[283112.336] (==) No monitor specified for screen "Default Screen Section".
        Using a default monitor configuration.
[283112.336] (**) |-->Input Device "Configured Mouse"
[283112.336] (**) |-->Input Device "Configured Keyboard"
[283112.336] (**) Option "AutoAddDevices" "false"
[283112.337] (**) Option "UseSIGIO" "false"
[283112.337] (**) Not automatically adding devices
[283112.337] (==) Automatically enabling devices
[283112.337] (==) Automatically adding GPU devices
[283112.337] (==) Automatically binding GPU devices
[283112.338] (==) Max clients allowed: 256, resource mask: 0x1fffff
[283112.339] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[283112.339]    Entry deleted from font path.
[283112.339] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[283112.340]    Entry deleted from font path.
[283112.340] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[283112.340]    Entry deleted from font path.
[283112.341] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/X11/Type1".
[283112.341]    Entry deleted from font path.
[283112.341]    (Run 'mkfontdir' on "/usr/share/fonts/X11/Type1").
[283112.341] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[283112.341]    Entry deleted from font path.
[283112.342] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[283112.342]    Entry deleted from font path.
[283112.342] (==) FontPath set to:
        /usr/share/fonts/X11/misc,
        built-ins
[283112.343] (==) ModulePath set to "/usr/lib/xorg/modules"
[283112.343] (II) Loader magic: 0x7f4db2e47020
[283112.343] (II) Module ABI versions:
[283112.344]    X.Org ANSI C Emulation: 0.4
[283112.344]    X.Org Video Driver: 23.0
[283112.344]    X.Org XInput driver : 24.1
[283112.344]    X.Org Server Extension : 10.0
[283112.345] (EE) dbus-core: error connecting to system bus: org.freedesktop.DBus.Error.FileNotFound (Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory)
[283112.347] (II) no primary bus or device found
[283112.347] (II) LoadModule: "glx"
[283112.354] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[283112.374] (II) Module glx: vendor="X.Org Foundation"
[283112.374]    compiled for 1.19.6, module version = 1.0.0
[283112.374]    ABI class: X.Org Server Extension, version 10.0
[283112.374] (==) Matched modesetting as autoconfigured driver 0
[283112.374] (==) Matched fbdev as autoconfigured driver 1
[283112.375] (==) Matched vesa as autoconfigured driver 2
[283112.375] (==) Assigned the driver to the xf86ConfigLayout
[283112.375] (II) LoadModule: "modesetting"
[283112.376] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[283112.378] (II) Module modesetting: vendor="X.Org Foundation"
[283112.378]    compiled for 1.19.6, module version = 1.19.6
[283112.378]    Module class: X.Org Video Driver
[283112.378]    ABI class: X.Org Video Driver, version 23.0
[283112.378] (II) LoadModule: "fbdev"
[283112.379] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[283112.380] (II) Module fbdev: vendor="X.Org Foundation"
[283112.381]    compiled for 1.19.3, module version = 0.4.4
[283112.381]    Module class: X.Org Video Driver
[283112.381]    ABI class: X.Org Video Driver, version 23.0
[283112.381] (II) LoadModule: "vesa"
[283112.382] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[283112.384] (II) Module vesa: vendor="X.Org Foundation"
[283112.384]    compiled for 1.19.3, module version = 2.3.4
[283112.385]    Module class: X.Org Video Driver
[283112.385]    ABI class: X.Org Video Driver, version 23.0
[283112.385] (II) LoadModule: "evdev"
[283112.387] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[283112.394] (II) Module evdev: vendor="X.Org Foundation"
[283112.394]    compiled for 1.19.3, module version = 2.10.5
[283112.394]    Module class: X.Org XInput Driver
[283112.394]    ABI class: X.Org XInput driver, version 24.1
[283112.395] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[283112.395] (II) FBDEV: driver for framebuffer: fbdev
[283112.395] (II) VESA: driver for VESA chipsets: vesa
[283112.396] (EE)
Fatal server error:
[283112.399] (EE) parse_vt_settings: Cannot open /dev/tty0 (Input/output error)
[283112.400] (EE)
[283112.402] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[283112.420] (EE) Please also check the log file at "/home/suyash/.local/share/xorg/Xorg.0.log" for additional information.
[283112.423] (EE)
[283112.427] (WW) xf86CloseConsole: KDSETMODE failed: Bad file descriptor
[283112.428] (WW) xf86CloseConsole: VT_GETMODE failed: Bad file descriptor
[283112.428] (EE) Server terminated with error (1). Closing log file.

I followed the steps for running x programs.
Thanks.

[kpocza]

@suyashmahar

Is it Ubuntu 16 or 18?

[suyashmahar]

@kpocza Ubuntu 18

[kpocza]

@suyashmahar

I thought so.
Ubuntu 16 is the supported version. For sure I won't have time in the recent weeks and months to add Ubuntu 18 support due to my other activities.
Please use LoWe with Ubuntu 16 up until then.
Thank you for your understanding.

[suyashmahar]

@kpocza This is a bummer. Is the support for Ubuntu 18 requires significant changes to the codebase? If not, I might be able to give it a try.

Anyway, thanks a lot for the awesome project! :-)

[kpocza]

@suyashmahar Last year I started to deal with Ubuntu 18 support. If I remember correctly some kind of handle inheritance should be introduced between processes and the device handling needs some tricks due to changes in X, but no sure. Anyway, I've pushed the changes I made last year to branch w10a18uu18.
Feel free to give a try to implement Ubuntu 18 support.

[kpocza]

@suyashmahar Please check if Ubuntu 18 works for you as well with the latest LoWe vesion.

[suyashmahar]

@kpocza Thanks, I'll let you know in a day or two.

[priyaranjankumar]

@kpocza

[INFO]{config}: Config loaded successfully
[INFO]{main}: Determining program mode from exec param: X
[INFO]{main}: Main program name is X
[INFO]{main}: App config identified
[INFO]{main}: Device handler configured
[INFO]{checkexposer}: Ensuring LoWeExposer handled devices...
[INFO]{fb}: Path: /dev/fb0
[INFO]{fb}: Path: /tmp/fb0
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{checkexposer}: Connecting to LoWeExposer on port no. 12345
[INFO]{fb}: Path: /dev/fb0
[INFO]{fb}: Path: /tmp/fb0
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{main}: Checking the availability of all devices...
[INFO]{fb}: Path: /dev/fb0
[ERR]{fb}: File cannot be accessed
[INFO]{fb}: Path: /tmp/fb0
[INFO]{fb}: Device check ok
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[ERR]{tty}: File cannot be accessed
[ERR]{tty}: File cannot be accessed
[INFO]{mice}: Path: /dev/input/evmice
[ERR]{mice}: File cannot be accessed
[ERR]{mice}: File cannot be accessed
[INFO]{kbd}: Path: /dev/input/evkbd
[ERR]{kbd}: File cannot be accessed
[ERR]{kbd}: File cannot be accessed
[ERR]{main}: One or more devices are not available
[INFO]{main}: Dev file fixup script is the following:

/dev/fb0
chmod 666 /dev/fb0
/dev/tty99
chmod 666 /dev/tty99
mkdir -p /dev/input
/dev/input/evmice
chmod 666 /dev/input/evmice
mkdir -p /dev/input
/dev/input/evkbd
chmod 666 /dev/input/evkbd

[INFO]{main}: Executing script as root
[sudo] password for networm:
[INFO]{main}: Script done. Rechecking device availability...
[INFO]{fb}: Path: /dev/fb0
[INFO]{fb}: Device check ok
[INFO]{fb}: Path: /tmp/fb0
[INFO]{fb}: Device check ok
[INFO]{tty}: Path: /dev/tty0
[INFO]{tty}: Path: /dev/tty99
[INFO]{tty}: Device check ok
[INFO]{mice}: Path: /dev/input/evmice
[INFO]{mice}: Device check ok
[INFO]{kbd}: Path: /dev/input/evkbd
[INFO]{kbd}: Device check ok
[INFO]{main}: Waiting for process to start...
[INFO]{main}: X will be started
[INFO]{main}: PID: 36
[INFO]{starter}: Starting X
[INFO]{main}: Spinning...
[ERR]{starter}: Return code of exec: -1 errno: 2
[ERR]{main}: Something went wrong. Cannot determine program's pid

I using this on Ubuntu 18. I tried but what is causing the error

[kpocza]

@priyaranjankumar According to the log you provided the errno of exec is 2. Are you correctly specifying the X executable? Are all required packages installed? Please check the instructions again.