Hello Adam, Adam Jackson schrieb am 22. Juli 2019 um 20:22
> > apparently I am able to run gdb locally on my computer. > The reason I mentioned ssh is: if you start X under gdb from the > console, the X server will switch away to a new virtual terminal while > it initializes. Then, when it crashes, it will halt in gdb; but you > won't be able to switch virtual terminals back to gdb, because X has > put the vt into process mode, and is now halted under gdb so it can't > run the code to release the vt back to the kernel. installing the openssh-server - package made no problem. So I was able to invoke gdb from my backup computer via ssh. gdb /usr/lib/xorg/Xorg and within gdb run introduced an attempt to start the X server. The logging is attached. I do not know whether it contains a hint what is going wrong. Perhaps the line "Cannot open /dev/tty0" are due to usage of gdb. Maybe necessary configuration information to analyse the situation ~$ ls -l /dev/tty0 crw--w---- 1 root tty 4, 0 Jul 22 21:46 /dev/tty0 grep tty /etc/group tty:x:5: Best regards Markus
[ 652.694] X.Org X Server 1.20.4 X Protocol Version 11, Revision 0 [ 652.697] Build Operating System: Linux 4.9.0-8-amd64 i686 Debian [ 652.698] Current Operating System: Linux lune 4.19.0-5-686-pae #1 SMP Debian 4.19.37-5 (2019-06-19) i686 [ 652.698] Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.0-5-686-pae root=/dev/sda7 [ 652.700] Build Date: 05 March 2019 08:11:12PM [ 652.701] xorg-server 2:1.20.4-1 (https://www.debian.org/support) [ 652.702] Current version of pixman: 0.36.0 [ 652.703] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 652.704] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 652.707] (==) Log file: "/home/hiereth/.local/share/xorg/Xorg.0.log", Time: Mon Jul 22 21:57:01 2019 [ 652.708] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 652.710] (==) No Layout section. Using the first Screen section. [ 652.711] (==) No screen section available. Using defaults. [ 652.712] (**) |-->Screen "Default Screen Section" (0) [ 652.712] (**) | |-->Monitor "<default monitor>" [ 652.716] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [ 652.717] (==) Automatically adding devices [ 652.718] (==) Automatically enabling devices [ 652.719] (==) Automatically adding GPU devices [ 652.720] (==) Max clients allowed: 256, resource mask: 0x1fffff [ 652.721] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 652.721] Entry deleted from font path. [ 652.722] (==) 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 [ 652.723] (==) ModulePath set to "/usr/lib/xorg/modules" [ 652.724] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 652.724] (II) Loader magic: 0x678740 [ 652.724] (II) Module ABI versions: [ 652.724] X.Org ANSI C Emulation: 0.4 [ 652.724] X.Org Video Driver: 24.0 [ 652.724] X.Org XInput driver : 24.1 [ 652.724] X.Org Server Extension : 10.0 [ 652.744] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_35 [ 652.748] (II) xfree86: Adding drm device (/dev/dri/card0) [ 652.751] (EE) systemd-logind: failed to take device /dev/dri/card0: Operation not permitted [ 652.763] (--) PCI:*(1@0:0:0) 102b:0525:102b:19d8 rev 4, Mem @ 0xdc000000/33554432, 0xdfefc000/16384, 0xdf000000/8388608, BIOS @ 0x????????/131072 [ 652.768] (II) LoadModule: "glx" [ 652.770] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 653.058] (II) Module glx: vendor="X.Org Foundation" [ 653.058] compiled for 1.20.4, module version = 1.0.0 [ 653.060] ABI class: X.Org Server Extension, version 10.0 [ 653.061] (==) Matched mga as autoconfigured driver 0 [ 653.062] (==) Matched modesetting as autoconfigured driver 1 [ 653.063] (==) Matched fbdev as autoconfigured driver 2 [ 653.063] (==) Matched vesa as autoconfigured driver 3 [ 653.064] (==) Assigned the driver to the xf86ConfigLayout [ 653.065] (II) LoadModule: "mga" [ 653.066] (II) Loading /usr/lib/xorg/modules/drivers/mga_drv.so [ 653.102] (II) Module mga: vendor="X.Org Foundation" [ 653.102] compiled for 1.20.3, module version = 2.0.0 [ 653.102] Module class: X.Org Video Driver [ 653.102] ABI class: X.Org Video Driver, version 24.0 [ 653.102] (II) LoadModule: "modesetting" [ 653.103] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 653.147] (II) Module modesetting: vendor="X.Org Foundation" [ 653.147] compiled for 1.20.4, module version = 1.20.4 [ 653.147] Module class: X.Org Video Driver [ 653.147] ABI class: X.Org Video Driver, version 24.0 [ 653.147] (II) LoadModule: "fbdev" [ 653.148] (WW) Warning, couldn't open module fbdev [ 653.148] (EE) Failed to load module "fbdev" (module does not exist, 0) [ 653.148] (II) LoadModule: "vesa" [ 653.150] (WW) Warning, couldn't open module vesa [ 653.151] (EE) Failed to load module "vesa" (module does not exist, 0) [ 653.152] (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w, mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI, mgag200 SE A PCI, mgag200 SE B PCI, mgag200 EV Maxim, mgag200 ER SH7757, mgag200 eW Nuvoton, mgag200 eW3 Nuvoton, mgag200eH, mgag200eH3, mgag400, mgag550 [ 653.163] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 653.164] (EE) Fatal server error: [ 653.165] (EE) parse_vt_settings: Cannot open /dev/tty0 (Permission denied) [ 653.166] (EE) [ 653.166] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 653.167] (EE) Please also check the log file at "/home/hiereth/.local/share/xorg/Xorg.0.log" for additional information. [ 653.167] (EE) [ 653.169] (WW) xf86CloseConsole: KDSETMODE failed: Bad file descriptor [ 653.170] (WW) xf86CloseConsole: VT_GETMODE failed: Bad file descriptor [ 653.174] (EE) Server terminated with error (1). Closing log file.
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