Booted with nomodeset i915.modeset=0 and here are the results. No display either. LightDM doesn't start, Xorg doesn't start.
[ 30.131] X.Org X Server 1.20.4 X Protocol Version 11, Revision 0 [ 30.131] Build Operating System: Linux 4.9.0-8-amd64 x86_64 Debian [ 30.131] Current Operating System: Linux alq11 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5 (2019-06-19) x86_64 [ 30.131] Kernel command line: BOOT_IMAGE=/vmlinuz-4.19.0-5-amd64 root=/dev/mapper/alq11--vg-root ro quiet nomodeset i915.modeset=0 [ 30.131] Build Date: 05 March 2019 08:11:12PM [ 30.131] xorg-server 2:1.20.4-1 (https://www.debian.org/support) [ 30.131] Current version of pixman: 0.36.0 [ 30.131] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 30.131] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 30.131] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Jul 16 09:12:39 2019 [ 30.132] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 30.132] (==) No Layout section. Using the first Screen section. [ 30.132] (==) No screen section available. Using defaults. [ 30.132] (**) |-->Screen "Default Screen Section" (0) [ 30.132] (**) | |-->Monitor "<default monitor>" [ 30.133] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [ 30.133] (==) Automatically adding devices [ 30.133] (==) Automatically enabling devices [ 30.133] (==) Automatically adding GPU devices [ 30.133] (==) Max clients allowed: 256, resource mask: 0x1fffff [ 30.133] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 30.133] Entry deleted from font path. [ 30.134] (==) 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 [ 30.134] (==) ModulePath set to "/usr/lib/xorg/modules" [ 30.134] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 30.134] (II) Loader magic: 0x55b6a15a0e20 [ 30.134] (II) Module ABI versions: [ 30.134] X.Org ANSI C Emulation: 0.4 [ 30.134] X.Org Video Driver: 24.0 [ 30.134] X.Org XInput driver : 24.1 [ 30.134] X.Org Server Extension : 10.0 [ 30.136] (++) using VT number 7
[ 30.136] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration [ 30.139] (--) PCI:*(0@0:2:0) 8086:22b1:1028:0725 rev 33, Mem @ 0x90000000/16777216, 0x80000000/268435456, I/O @ 0x0000f000/64, BIOS @ 0x????????/131072 [ 30.139] (II) LoadModule: "glx" [ 30.139] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 30.142] (II) Module glx: vendor="X.Org Foundation" [ 30.142] compiled for 1.20.4, module version = 1.0.0 [ 30.142] ABI class: X.Org Server Extension, version 10.0 [ 30.142] (==) Matched modesetting as autoconfigured driver 0 [ 30.142] (==) Matched fbdev as autoconfigured driver 1 [ 30.142] (==) Matched vesa as autoconfigured driver 2 [ 30.142] (==) Assigned the driver to the xf86ConfigLayout [ 30.142] (II) LoadModule: "modesetting" [ 30.142] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 30.142] (II) Module modesetting: vendor="X.Org Foundation" [ 30.142] compiled for 1.20.4, module version = 1.20.4 [ 30.142] Module class: X.Org Video Driver [ 30.142] ABI class: X.Org Video Driver, version 24.0 [ 30.142] (II) LoadModule: "fbdev" [ 30.143] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 30.143] (II) Module fbdev: vendor="X.Org Foundation" [ 30.143] compiled for 1.20.0, module version = 0.5.0 [ 30.143] Module class: X.Org Video Driver [ 30.143] ABI class: X.Org Video Driver, version 24.0 [ 30.143] (II) LoadModule: "vesa" [ 30.143] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so [ 30.143] (II) Module vesa: vendor="X.Org Foundation" [ 30.143] compiled for 1.20.1, module version = 2.4.0 [ 30.143] Module class: X.Org Video Driver [ 30.143] ABI class: X.Org Video Driver, version 24.0 [ 30.143] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 30.144] (II) FBDEV: driver for framebuffer: fbdev [ 30.144] (II) VESA: driver for VESA chipsets: vesa [ 30.144] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted) [ 30.144] (EE) open /dev/dri/card0: No such file or directory [ 30.144] (WW) Falling back to old probe method for modesetting [ 30.144] (EE) open /dev/dri/card0: No such file or directory [ 30.144] (II) Loading sub module "fbdevhw" [ 30.144] (II) LoadModule: "fbdevhw" [ 30.144] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 30.145] (II) Module fbdevhw: vendor="X.Org Foundation" [ 30.145] compiled for 1.20.4, module version = 0.0.2 [ 30.145] ABI class: X.Org Video Driver, version 24.0 [ 30.145] (EE) Unable to find a valid framebuffer device [ 30.145] (WW) Falling back to old probe method for fbdev [ 30.145] (II) Loading sub module "fbdevhw" [ 30.145] (II) LoadModule: "fbdevhw" [ 30.145] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 30.145] (II) Module fbdevhw: vendor="X.Org Foundation" [ 30.145] compiled for 1.20.4, module version = 0.0.2 [ 30.145] ABI class: X.Org Video Driver, version 24.0 [ 30.145] (II) FBDEV(2): using default device [ 30.146] (EE) Screen 0 deleted because of no matching config section. [ 30.146] (II) UnloadModule: "modesetting" [ 30.146] (EE) Screen 0 deleted because of no matching config section. [ 30.146] (II) UnloadModule: "fbdev" [ 30.146] (II) UnloadSubModule: "fbdevhw" [ 30.146] (EE) Fatal server error: [ 30.146] (EE) Cannot run in framebuffer mode. Please specify busIDs for all framebuffer devices [ 30.146] (EE) [ 30.146] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 30.146] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 30.146] (EE) [ 30.152] (EE) Server terminated with error (1). Closing log file.