após atualizar o Slackware do 14.1 para o 14.2 me deparei com um erro ao tentar subir o Xorg.
agora... segue as mensagens salvas no arquivo Xorg.0.log:
[ 186.783]
X.Org X Server 1.18.3
Release Date: 2016-04-04
[ 186.795] X Protocol Version 11, Revision 0
[ 186.798] Build Operating System: Slackware 14.2 Slackware Linux Project
[ 186.802] Current Operating System: Linux usertux 4.4.88-smp #2 SMP Thu Sep 14 15:50:44 CDT 2017 i686
[ 186.802] Kernel command line: BOOT_IMAGE=Linux ro root=801 vt.default_utf8=0
[ 186.810] Build Date: 15 August 2017 04:58:43PM
[ 186.814]
[ 186.817] Current version of pixman: 0.34.0
[ 186.825] Before reporting problems, check
http://wiki.x.org
to make sure that you have the latest version.
[ 186.825] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 186.840] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Sep 28 12:49:55 2017
[ 186.845] (==) Using config file: "/etc/X11/xorg.conf"
[ 186.848] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 186.852] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 186.854] (==) ServerLayout "X.org Configured"
[ 186.854] (**) |-->Screen "Screen0" (0)
[ 186.854] (**) | |-->Monitor "Monitor0"
[ 186.855] (**) | |-->Device "Card0"
[ 186.855] (**) |-->Input Device "Mouse0"
[ 186.855] (**) |-->Input Device "Keyboard0"
[ 186.855] (==) Automatically adding devices
[ 186.855] (==) Automatically enabling devices
[ 186.855] (==) Automatically adding GPU devices
[ 186.855] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 186.855] (WW) The directory "/usr/share/fonts/local" does not exist.
[ 186.855] Entry deleted from font path.
[ 186.855] (WW) The directory "/usr/share/fonts/CID" does not exist.
[ 186.855] Entry deleted from font path.
[ 186.855] (WW) The directory "/usr/share/fonts/local" does not exist.
[ 186.855] Entry deleted from font path.
[ 186.855] (WW) The directory "/usr/share/fonts/CID" does not exist.
[ 186.855] Entry deleted from font path.
[ 186.856] (**) FontPath set to:
/usr/share/fonts/TTF,
/usr/share/fonts/OTF,
/usr/share/fonts/Type1,
/usr/share/fonts/misc,
/usr/share/fonts/75dpi/:unscaled,
/usr/share/fonts/100dpi/:unscaled,
/usr/share/fonts/75dpi,
/usr/share/fonts/100dpi,
/usr/share/fonts/cyrillic,
/usr/share/fonts/TTF,
/usr/share/fonts/OTF,
/usr/share/fonts/Type1,
/usr/share/fonts/misc,
/usr/share/fonts/75dpi/:unscaled,
/usr/share/fonts/100dpi/:unscaled,
/usr/share/fonts/75dpi,
/usr/share/fonts/100dpi,
/usr/share/fonts/cyrillic
[ 186.856] (**) ModulePath set to "/usr/lib/xorg/modules"
[ 186.856] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 186.856] (WW) Disabling Mouse0
[ 186.856] (WW) Disabling Keyboard0
[ 186.856] (II) Loader magic: 0x82b4620
[ 186.856] (II) Module ABI versions:
[ 186.856] X.Org ANSI C Emulation: 0.4
[ 186.856] X.Org Video Driver: 20.0
[ 186.856] X.Org XInput driver : 22.1
[ 186.856] X.Org Server Extension : 9.0
[ 186.857] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 186.861] (--) PCI:*(0:0:2:0) 8086:a011:1b7d:0002 rev 0, Mem @ 0x98180000/524288, 0x80000000/268435456, 0x98000000/1048576, I/O @ 0x000060c0/8
[ 186.861] (--) PCI: (0:0:2:1) 8086:a012:1b7d:0002 rev 0, Mem @ 0x98100000/524288
[ 186.861] (II) Open ACPI successful (/var/run/acpid.socket)
[ 186.861] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[ 186.861] (II) LoadModule: "glx"
[ 186.863] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 186.870] (II) Module glx: vendor="X.Org Foundation"
[ 186.870] compiled for 1.18.3, module version = 1.0.0
[ 186.870] ABI class: X.Org Server Extension, version 9.0
[ 186.871] (==) AIGLX enabled
[ 186.871] (II) LoadModule: "modesetting"
[ 186.872] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 186.872] (II) Module modesetting: vendor="X.Org Foundation"
[ 186.872] compiled for 1.18.3, module version = 1.18.3
[ 186.872] Module class: X.Org Video Driver
[ 186.872] ABI class: X.Org Video Driver, version 20.0
[ 186.872] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 186.872] (--) using VT number 7
[ 186.884] (II) modeset(G0): using drv /dev/dri/card0
[ 186.884] (EE) No devices detected.
[ 186.884] (EE)
Fatal server error:
[ 186.884] (EE) no screens found(EE)
[ 186.884] (EE)
Please consult the The X.Org Foundation support
at
http://wiki.x.org
for help.
[ 186.885] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 186.885] (EE)