Hi Rob,

Your kernel is 4.2.0-1. So, i suppose you are in Ascii or Ceres...

If you start a X session using a display manager, the virtual console
used by default will be the tty7. However, typing startx the X session
should run in the first virtual console. As you know, you can jump from
tty1 to tty7 typing CTRL + ALT +F7, and vice versa.

The issue, i think, is in the '/etc/X11/Xwrapper.config', provided by
'x11-common' package. Does it contain something like this:

allowed_users=console

or this other one:

allowed_users=anybody

If not, try typing:

# dpkg-reconfigure x11-common

Then choose between the following alternatives:

1- Root Only
2- Console Users Only
3- Anybody

The second and the third options will allow you to start X sessions.

Aitor.

On 17/10/15 10:19, aitor_czr <aitor_czr@???> wrote:
> By default, Devuan uses the seventh tty for X sessions. The permision is
> denied because xserver-xorg is not SUID root. If it is called from
> another SUID root program (a display manager like slim or lightdm) it
> will work. But first, you can try reinstalling xserver-xorg package to
> set the correct permissions, once created the user.
>
> Cheers,
>
> Aitor.
>
> On 17/10/15 00:44, Rob<Nuisance@???> wrote:
>> >After upgrade tonight came out of Xorg to restart openbox.
>> >
>> >I tried to start Xorg but it failed with "xf86OpenConsole cannot open /dev/tty0 ( no such file or directory)
>> >
>> >/dev/tty0 was there so assumed permission problem. Temporarily added my user to tty group and tried again.
>> >
>> >This time Xorg failed to start with "xf86OpenConsole cannot open Virtual Console 7 ( permisson denied.)
>> >
>> >How to resolve?
>> >
>> >Xorg.log below
>> >
>> >Thanks
>> >
>> >Rob
>> >
>> >[ 5450.132]
>> >X.Org X Server 1.17.2
>> >Release Date: 2015-06-16
>> >[ 5450.132] X Protocol Version 11, Revision 0
>> >[ 5450.132] Build Operating System: Linux 4.2.0-1-amd64 x86_64 Debian
>> >[ 5450.132] Current Operating System: Linux debian 3.18.5preempt #1 SMP PREEMPT Tue Feb 3 21:18:50 GMT 2015 x86_64
>> >[ 5450.132] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.18.5preempt root=/dev/sda1 ro
>> >[ 5450.132] Build Date: 06 October 2015 07:27:47AM
>> >[ 5450.132] xorg-server 2:1.17.2-3 (http://www.debian.org/support)
>> >[ 5450.132] Current version of pixman: 0.33.2
>> >[ 5450.132] Before reporting problems, checkhttp://wiki.x.org
>> >to make sure that you have the latest version.
>> >[ 5450.132] Markers: (--) probed, (**) from config file, (==) default setting,
>> >(++) from command line, (!!) notice, (II) informational,
>> >(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
>> >[ 5450.133] (==) Log file: "/home/rob/.local/share/xorg/Xorg.0.log", Time: Fri Oct 16 23:40:02 2015
>> >[ 5450.133] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
>> >[ 5450.133] (==) No Layout section. Using the first Screen section.
>> >[ 5450.133] (==) No screen section available. Using defaults.
>> >[ 5450.133] (**) |-->Screen "Default Screen Section" (0)
>> >[ 5450.133] (**) | |-->Monitor "<default monitor>"
>> >[ 5450.133] (==) No monitor specified for screen "Default Screen Section".
>> >Using a default monitor configuration.
>> >[ 5450.133] (==) Automatically adding devices
>> >[ 5450.133] (==) Automatically enabling devices
>> >[ 5450.133] (==) Automatically adding GPU devices
>> >[ 5450.133] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
>> >[ 5450.133] Entry deleted from font path.
>> >[ 5450.133] (==) FontPath set to:
>> >/usr/share/fonts/X11/misc,
>> >/usr/share/fonts/X11/100dpi/:unscaled,
>> >/usr/share/fonts/X11/75dpi/:unscaled,
>> >/usr/share/fonts/X11/Type1,
>> >/usr/share/fonts/X11/100dpi,
>> >/usr/share/fonts/X11/75dpi,
>> >built-ins
>> >[ 5450.133] (==) ModulePath set to "/usr/lib/xorg/modules"
>> >[ 5450.133] (II) The server relies on udev to provide the list of input devices.
>> >If no devices become available, reconfigure udev or disable AutoAddDevices.
>> >[ 5450.133] (II) Loader magic: 0x7f18511c4de0
>> >[ 5450.133] (II) Module ABI versions:
>> >[ 5450.133] X.Org ANSI C Emulation: 0.4
>> >[ 5450.133] X.Org Video Driver: 19.0
>> >[ 5450.133] X.Org XInput driver : 21.0
>> >[ 5450.133] X.Org Server Extension : 9.0
>> >[ 5450.134] (EE) systemd-logind: failed to get session: The name org.freedesktop.login1 was not provided by any .service files
>> >[ 5450.134] (II) xfree86: Adding drm device (/dev/dri/card0)
>> >[ 5450.134] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied
>> >[ 5450.136] (--) PCI:*(0:1:0:0) 10de:1381:19da:2346 rev 162, Mem @ 0xfd000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
>> >[ 5450.136] (II) LoadModule: "glx"
>> >[ 5450.136] (II) Loading /usr/lib/xorg/modules/linux/libglx.so
>> >[ 5450.147] (II) Module glx: vendor="NVIDIA Corporation"
>> >[ 5450.147] compiled for 4.0.2, module version = 1.0.0
>> >[ 5450.147] Module class: X.Org Server Extension
>> >[ 5450.147] (II) NVIDIA GLX Module 340.93 Wed Aug 19 16:23:51 PDT 2015
>> >[ 5450.147] (==) Matched nouveau as autoconfigured driver 0
>> >[ 5450.147] (==) Matched nv as autoconfigured driver 1
>> >[ 5450.147] (==) Matched modesetting as autoconfigured driver 2
>> >[ 5450.147] (==) Matched fbdev as autoconfigured driver 3
>> >[ 5450.147] (==) Matched vesa as autoconfigured driver 4
>> >[ 5450.147] (==) Assigned the driver to the xf86ConfigLayout
>> >[ 5450.147] (II) LoadModule: "nouveau"
>> >[ 5450.147] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
>> >[ 5450.147] (II) Module nouveau: vendor="X.Org Foundation"
>> >[ 5450.147] compiled for 1.17.1, module version = 1.0.11
>> >[ 5450.147] Module class: X.Org Video Driver
>> >[ 5450.147] ABI class: X.Org Video Driver, version 19.0
>> >[ 5450.147] (II) LoadModule: "nv"
>> >[ 5450.148] (WW) Warning, couldn't open module nv
>> >[ 5450.148] (II) UnloadModule: "nv"
>> >[ 5450.148] (II) Unloading nv
>> >[ 5450.148] (EE) Failed to load module "nv" (module does not exist, 0)
>> >[ 5450.148] (II) LoadModule: "modesetting"
>> >[ 5450.148] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
>> >[ 5450.148] (II) Module modesetting: vendor="X.Org Foundation"
>> >[ 5450.148] compiled for 1.17.2, module version = 1.17.2
>> >[ 5450.148] Module class: X.Org Video Driver
>> >[ 5450.148] ABI class: X.Org Video Driver, version 19.0
>> >[ 5450.148] (II) LoadModule: "fbdev"
>> >[ 5450.148] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
>> >[ 5450.148] (II) Module fbdev: vendor="X.Org Foundation"
>> >[ 5450.148] compiled for 1.17.1, module version = 0.4.4
>> >[ 5450.148] Module class: X.Org Video Driver
>> >[ 5450.148] ABI class: X.Org Video Driver, version 19.0
>> >[ 5450.148] (II) LoadModule: "vesa"
>> >[ 5450.148] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
>> >[ 5450.148] (II) Module vesa: vendor="X.Org Foundation"
>> >[ 5450.148] compiled for 1.17.1, module version = 2.3.3
>> >[ 5450.148] Module class: X.Org Video Driver
>> >[ 5450.148] ABI class: X.Org Video Driver, version 19.0
>> >[ 5450.148] (II) NOUVEAU driver Date: Thu Aug 28 03:57:48 2014 +0200
>> >[ 5450.148] (II) NOUVEAU driver for NVIDIA chipset families :
>> >[ 5450.148] RIVA TNT (NV04)
>> >[ 5450.148] RIVA TNT2 (NV05)
>> >[ 5450.148] GeForce 256 (NV10)
>> >[ 5450.148] GeForce 2 (NV11, NV15)
>> >[ 5450.148] GeForce 4MX (NV17, NV18)
>> >[ 5450.148] GeForce 3 (NV20)
>> >[ 5450.148] GeForce 4Ti (NV25, NV28)
>> >[ 5450.148] GeForce FX (NV3x)
>> >[ 5450.148] GeForce 6 (NV4x)
>> >[ 5450.148] GeForce 7 (G7x)
>> >[ 5450.148] GeForce 8 (G8x)
>> >[ 5450.148] GeForce GTX 200 (NVA0)
>> >[ 5450.148] GeForce GTX 400 (NVC0)
>> >[ 5450.148] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
>> >[ 5450.148] (II) FBDEV: driver for framebuffer: fbdev
>> >[ 5450.148] (II) VESA: driver for VESA chipsets: vesa
>> >[ 5450.148] (--) using VT number 7
>> >
>> >[ 5450.148] (EE)
>> >Fatal server error:
>> >[ 5450.148] (EE) xf86OpenConsole: Cannot open virtual console 8 (Permission denied)
>> >[ 5450.148] (EE)
>> >[ 5450.148] (EE)
>> >Please consult the The X.Org Foundation support
>> >athttp://wiki.x.org
>> >for help.
>> >[ 5450.148] (EE) Please also check the log file at "/home/rob/.local/share/xorg/Xorg.0.log" for additional information.
>> >[ 5450.149] (EE)