A tela do Debian 9 se divide em seis partes após a instalação

Question

Eu tentei instalar o Debian 9 em tal dispositivo com Intel Core i7-7600U. A instalação foi realizada sem erros. Mas depois de arrancar o sistema eu vou ter tela dividida.
Eu li esta postagem mas não funciona para mim.
Eu tentei ativar o modo UEFI, instale o microcódigo como descrito aqui mas ainda não funciona.

UPD
Informações sobre GPU. Isso é suficiente?

lshw -numeric -C display
  *-display                 
       description: VGA compatible controller
       product: Intel Corporation [8086:5916]
       vendor: Intel Corporation [8086]
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 02
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:130 memory:de000000-deffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff

Parte do dmesg. Vou tentar consertar isso. Mas não acho que isso possa ajudar.

[    9.358931] i915 0000:00:02.0: firmware: failed to load i915/kbl_dmc_ver1_01.bin (-2)
[    9.358936] i915 0000:00:02.0: Direct firmware load for i915/kbl_dmc_ver1_01.bin failed with error -2
[    9.358938] i915 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management.

UPD Instalei o firmware-linux-nonfree. Mensagens de erro do dmesg desapareceram.

Xorg.0.log

[    50.585] (--) Log file renamed from "/home/user/.local/share/xorg/Xorg.pid-904.log" to "/home/user/.local/share/xorg/Xorg.0.log"
[    50.585] 
X.Org X Server 1.19.2
Release Date: 2017-03-02
[    50.585] X Protocol Version 11, Revision 0
[    50.585] Build Operating System: Linux 4.9.0-4-amd64 x86_64 Debian
[    50.585] Current Operating System: Linux debian 4.9.0-7-amd64 #1 SMP Debian 4.9.110-3+deb9u2 (2018-08-13) x86_64
[    50.585] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.9.0-7-amd64 root=UUID=57b5b634-2683-41d1-b0f4-975cf624ac45 ro quiet
[    50.585] Build Date: 16 October 2017  08:19:45AM
[    50.585] xorg-server 2:1.19.2-1+deb9u2 (https://www.debian.org/support) 
[    50.585] Current version of pixman: 0.34.0
[    50.585]    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[    50.585] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    50.585] (==) Log file: "/home/user/.local/share/xorg/Xorg.0.log", Time: Thu Sep  6 07:36:19 2018
[    50.608] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    50.626] (==) No Layout section.  Using the first Screen section.
[    50.626] (==) No screen section available. Using defaults.
[    50.626] (**) |-->Screen "Default Screen Section" (0)
[    50.626] (**) |   |-->Monitor "<default monitor>"
[    50.627] (==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
[    50.627] (==) Automatically adding devices
[    50.627] (==) Automatically enabling devices
[    50.627] (==) Automatically adding GPU devices
[    50.627] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    50.627] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    50.627]    Entry deleted from font path.
[    50.627] (==) 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
[    50.627] (==) ModulePath set to "/usr/lib/xorg/modules"
[    50.627] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[    50.627] (II) Loader magic: 0x5642713b2e00
[    50.627] (II) Module ABI versions:
[    50.627]    X.Org ANSI C Emulation: 0.4
[    50.627]    X.Org Video Driver: 23.0
[    50.627]    X.Org XInput driver : 24.1
[    50.627]    X.Org Server Extension : 10.0
[    50.628] (++) using VT number 2

[    50.630] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_32
[    50.631] (II) xfree86: Adding drm device (/dev/dri/card0)
[    50.632] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 12 paused 0
[    50.633] (--) PCI:*(0:0:2:0) 8086:5916:8086:2015 rev 2, Mem @ 0xde000000/16777216, 0xc0000000/268435456, I/O @ 0x0000f000/64, BIOS @ 0x????????/131072
[    50.633] (II) LoadModule: "glx"
[    50.670] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    50.694] (II) Module glx: vendor="X.Org Foundation"
[    50.694]    compiled for 1.19.2, module version = 1.0.0
[    50.694]    ABI class: X.Org Server Extension, version 10.0
[    50.694] (==) Matched modesetting as autoconfigured driver 0
[    50.694] (==) Matched fbdev as autoconfigured driver 1
[    50.694] (==) Matched vesa as autoconfigured driver 2
[    50.694] (==) Assigned the driver to the xf86ConfigLayout
[    50.694] (II) LoadModule: "modesetting"
[    50.694] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    50.695] (II) Module modesetting: vendor="X.Org Foundation"
[    50.695]    compiled for 1.19.2, module version = 1.19.2
[    50.695]    Module class: X.Org Video Driver
[    50.695]    ABI class: X.Org Video Driver, version 23.0
[    50.695] (II) LoadModule: "fbdev"
[    50.695] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    50.695] (II) Module fbdev: vendor="X.Org Foundation"
[    50.695]    compiled for 1.19.0, module version = 0.4.4
[    50.695]    Module class: X.Org Video Driver
[    50.695]    ABI class: X.Org Video Driver, version 23.0
[    50.695] (II) LoadModule: "vesa"
[    50.695] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    50.695] (II) Module vesa: vendor="X.Org Foundation"
[    50.695]    compiled for 1.19.0, module version = 2.3.4
[    50.695]    Module class: X.Org Video Driver
[    50.695]    ABI class: X.Org Video Driver, version 23.0
[    50.695] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    50.695] (II) FBDEV: driver for framebuffer: fbdev
[    50.695] (II) VESA: driver for VESA chipsets: vesa
[    50.695] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
[    50.696] (II) modeset(0): using drv /dev/dri/card0
[    50.696] (WW) Falling back to old probe method for fbdev
[    50.696] (II) Loading sub module "fbdevhw"
[    50.696] (II) LoadModule: "fbdevhw"
[    50.714] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    50.725] (II) Module fbdevhw: vendor="X.Org Foundation"
[    50.725]    compiled for 1.19.2, module version = 0.0.2
[    50.725]    ABI class: X.Org Video Driver, version 23.0
[    50.725] (WW) Falling back to old probe method for vesa
[    50.725] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[    50.725] (II) modeset(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[    50.725] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[    50.725] (==) modeset(0): RGB weight 888
[    50.725] (==) modeset(0): Default visual is TrueColor
[    50.725] (II) Loading sub module "glamoregl"
[    50.725] (II) LoadModule: "glamoregl"
[    50.725] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[    50.748] (II) Module glamoregl: vendor="X.Org Foundation"
[    50.748]    compiled for 1.19.2, module version = 1.0.0
[    50.748]    ABI class: X.Org ANSI C Emulation, version 0.4
[    50.748] (II) glamor: OpenGL accelerated X.org driver based.
[    50.756] (II) glamor: EGL version 1.4 (DRI2):
[    50.757] (II) modeset(0): glamor initialized
[    50.760] (II) modeset(0): Output eDP-1 has no monitor section
[    50.760] (II) modeset(0): Output DP-1 has no monitor section
[    50.764] (II) modeset(0): Output HDMI-1 has no monitor section
[    50.765] (II) modeset(0): Output DP-2 has no monitor section
[    50.891] (II) modeset(0): Output HDMI-2 has no monitor section
[    50.892] (II) modeset(0): EDID for output eDP-1
[    50.893] (II) modeset(0): Printing probed modes for output eDP-1
[    50.893] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz P)
[    50.893] (II) modeset(0): Modeline "960x720"x120.0  117.00  960 1024 1128 1300  720 720 722 750 doublescan -hsync +vsync (90.0 kHz d)
[    50.894] (II) modeset(0): Modeline "928x696"x120.1  109.15  928 976 1088 1264  696 696 698 719 doublescan -hsync +vsync (86.4 kHz d)
[    50.894] (II) modeset(0): Modeline "896x672"x120.0  102.40  896 960 1060 1224  672 672 674 697 doublescan -hsync +vsync (83.7 kHz d)
[    50.894] (II) modeset(0): Modeline "960x600"x120.0   77.00  960 984 1000 1040  600 601 604 617 doublescan +hsync -vsync (74.0 kHz d)
[    50.895] (II) modeset(0): Modeline "960x540"x120.0   69.25  960 984 1000 1040  540 541 544 555 doublescan +hsync -vsync (66.6 kHz d)
[    50.895] (II) modeset(0): Modeline "800x600"x120.0   81.00  800 832 928 1080  600 600 602 625 doublescan +hsync +vsync (75.0 kHz d)
[    50.895] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz d)
[    50.895] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz d)
[    50.896] (II) modeset(0): Modeline "840x525"x120.0   73.12  840 892 980 1120  525 526 529 544 doublescan -hsync +vsync (65.3 kHz d)
[    50.896] (II) modeset(0): Modeline "840x525"x119.8   59.50  840 864 880 920  525 526 529 540 doublescan +hsync -vsync (64.7 kHz d)
[    50.896] (II) modeset(0): Modeline "800x512"x120.3   51.56  800 800 828 832  512 512 514 515 doublescan +hsync +vsync (62.0 kHz d)
[    50.897] (II) modeset(0): Modeline "700x525"x120.0   61.00  700 744 820 940  525 526 532 541 doublescan +hsync +vsync (64.9 kHz d)
[    50.897] (II) modeset(0): Modeline "640x512"x120.0   54.00  640 664 720 844  512 512 514 533 doublescan +hsync +vsync (64.0 kHz d)
[    50.897] (II) modeset(0): Modeline "720x450"x119.8   53.25  720 760 836 952  450 451 454 467 doublescan -hsync +vsync (55.9 kHz d)
[    50.897] (II) modeset(0): Modeline "640x480"x120.0   54.00  640 688 744 900  480 480 482 500 doublescan +hsync +vsync (60.0 kHz d)
[    50.897] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz d)
[    50.897] (II) modeset(0): Modeline "680x384"x119.6   42.38  680 716 784 888  384 385 390 399 doublescan -hsync +vsync (47.7 kHz d)
[    50.897] (II) modeset(0): Modeline "680x384"x119.9   36.00  680 704 720 760  384 385 390 395 doublescan +hsync -vsync (47.4 kHz d)
[    50.897] (II) modeset(0): Modeline "576x432"x120.1   40.81  576 608 668 760  432 432 434 447 doublescan -hsync +vsync (53.7 kHz d)
[    50.897] (II) modeset(0): Modeline "512x384"x120.0   32.50  512 524 592 672  384 385 388 403 doublescan -hsync -vsync (48.4 kHz d)
[    50.897] (II) modeset(0): Modeline "400x300"x120.6   20.00  400 420 484 528  300 300 302 314 doublescan +hsync +vsync (37.9 kHz d)
[    50.897] (II) modeset(0): Modeline "400x300"x112.7   18.00  400 412 448 512  300 300 301 312 doublescan +hsync +vsync (35.2 kHz d)
[    50.897] (II) modeset(0): Modeline "320x240"x120.1   12.59  320 328 376 400  240 245 246 262 doublescan -hsync -vsync (31.5 kHz d)
[    50.897] (II) modeset(0): EDID for output DP-1
[    50.904] (II) modeset(0): EDID for output HDMI-1
[    50.905] (II) modeset(0): EDID for output DP-2
[    51.031] (II) modeset(0): EDID for output HDMI-2
[    51.032] (II) modeset(0): Output eDP-1 connected
[    51.032] (II) modeset(0): Output DP-1 disconnected
[    51.032] (II) modeset(0): Output HDMI-1 disconnected
[    51.032] (II) modeset(0): Output DP-2 disconnected
[    51.033] (II) modeset(0): Output HDMI-2 disconnected
[    51.033] (II) modeset(0): Using exact sizes for initial modes
[    51.033] (II) modeset(0): Output eDP-1 using initial mode 1024x768 +0+0
[    51.034] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0)
[    51.034] (==) modeset(0): DPI set to (96, 96)
[    51.034] (II) Loading sub module "fb"
[    51.034] (II) LoadModule: "fb"
[    51.035] (II) Loading /usr/lib/xorg/modules/libfb.so
[    51.036] (II) Module fb: vendor="X.Org Foundation"
[    51.036]    compiled for 1.19.2, module version = 1.0.0
[    51.037]    ABI class: X.Org ANSI C Emulation, version 0.4
[    51.037] (II) UnloadModule: "fbdev"
[    51.037] (II) Unloading fbdev
[    51.037] (II) UnloadSubModule: "fbdevhw"
[    51.037] (II) Unloading fbdevhw
[    51.037] (II) UnloadModule: "vesa"
[    51.037] (II) Unloading vesa
[    51.037] (==) Depth 24 pixmap format is 32 bpp
[    51.112] (==) modeset(0): Backing store enabled
[    51.112] (==) modeset(0): Silken mouse enabled
[    51.113] (II) modeset(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[    51.114] (==) modeset(0): DPMS enabled
[    51.114] (II) modeset(0): [DRI2] Setup complete
[    51.115] (II) modeset(0): [DRI2]   DRI driver: i965
[    51.115] (II) modeset(0): [DRI2]   VDPAU driver: i965
[    51.115] (--) RandR disabled
[    51.118] (II) SELinux: Disabled on system
[    51.122] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[    51.123] (II) AIGLX: enabled GLX_ARB_create_context
[    51.123] (II) AIGLX: enabled GLX_ARB_create_context_profile
[    51.123] (II) AIGLX: enabled GLX_EXT_create_context_es{,2}_profile
[    51.124] (II) AIGLX: enabled GLX_INTEL_swap_event
[    51.124] (II) AIGLX: enabled GLX_SGI_swap_control
[    51.124] (II) AIGLX: enabled GLX_EXT_framebuffer_sRGB
[    51.124] (II) AIGLX: enabled GLX_ARB_fbconfig_float
[    51.125] (II) AIGLX: enabled GLX_EXT_fbconfig_packed_float
[    51.125] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
[    51.125] (II) AIGLX: enabled GLX_ARB_create_context_robustness
[    51.125] (II) AIGLX: Loaded and initialized i965
[    51.125] (II) GLX: Initialized DRI2 GL provider for screen 0
[    51.127] (II) modeset(0): Damage tracking initialized
[    51.127] (II) modeset(0): Setting screen physical size to 270 x 203
[    51.169] (II) config/udev: Adding input device Power Button (/dev/input/event5)
[    51.169] (**) Power Button: Applying InputClass "libinput keyboard catchall"

## cut mouse and keyboard messages

[    51.272] (II) config/udev: Adding input device Atmel Atmel maXTouch Digitizer (/dev/input/event7)
[    51.272] (**) Atmel Atmel maXTouch Digitizer: Applying InputClass "libinput touchscreen catchall"
[    51.272] (II) Using input driver 'libinput' for 'Atmel Atmel maXTouch Digitizer'
[    51.332] (II) systemd-logind: got fd for /dev/input/event7 13:71 fd 30 paused 0
[    51.332] (**) Atmel Atmel maXTouch Digitizer: always reports core events
[    51.332] (**) Option "Device" "/dev/input/event7"
[    51.332] (**) Option "_source" "server/udev"
[    51.334] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is tagged by udev as: Touchscreen
[    51.334] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is a touch device
[    51.334] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.1/0003:03EB:8A6E.0005/input/input8/event7"
[    51.335] (II) XINPUT: Adding extended input device "Atmel Atmel maXTouch Digitizer" (type: TOUCHSCREEN, id 13)
[    51.335] (**) Option "AccelerationScheme" "none"
[    51.335] (**) Atmel Atmel maXTouch Digitizer: (accel) selected scheme none/0
[    51.335] (**) Atmel Atmel maXTouch Digitizer: (accel) acceleration factor: 2.000
[    51.335] (**) Atmel Atmel maXTouch Digitizer: (accel) acceleration threshold: 4
[    51.336] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is tagged by udev as: Touchscreen
[    51.336] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is a touch device
[    51.338] (II) config/udev: Adding input device Atmel Atmel maXTouch Digitizer (/dev/input/mouse1)
[    51.338] (II) No input driver specified, ignoring this device.
[    51.338] (II) This device may have been added with another device file.
[    51.339] (II) config/udev: Adding input device HDA Intel PCH Mic (/dev/input/event9)
[    51.339] (II) No input driver specified, ignoring this device.
[    51.340] (II) This device may have been added with another device file.
[    51.341] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event10)
[    51.341] (II) No input driver specified, ignoring this device.
[    51.341] (II) This device may have been added with another device file.
[    51.345] (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event11)
[    51.345] (II) No input driver specified, ignoring this device.
[    51.345] (II) This device may have been added with another device file.
[    51.350] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=3 (/dev/input/event12)
[    51.350] (II) No input driver specified, ignoring this device.
[    51.350] (II) This device may have been added with another device file.
[    51.351] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=7 (/dev/input/event13)
[    51.351] (II) No input driver specified, ignoring this device.
[    51.351] (II) This device may have been added with another device file.
[    51.352] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=8 (/dev/input/event14)
[    51.352] (II) No input driver specified, ignoring this device.
[    51.352] (II) This device may have been added with another device file.
[    51.353] (II) config/udev: Adding input device PC Speaker (/dev/input/event6)
[    51.353] (II) No input driver specified, ignoring this device.
[    51.353] (II) This device may have been added with another device file.
[   949.285] (**) Option "fd" "30"
[   950.637] (II) SYN_DROPPED event from "Logitech USB Optical Mouse" - some input events have been lost.
[   950.659] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is tagged by udev as: Touchscreen
[   950.659] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is a touch device
[  1497.520] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is tagged by udev as: Touchscreen
[  1497.520] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is a touch device
[  7035.194] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is tagged by udev as: Touchscreen
[  7035.194] (II) input device 'Atmel Atmel maXTouch Digitizer', /dev/input/event7 is a touch device
[ 10527.026] (**) Option "fd" "21"
[ 10527.026] (**) Option "fd" "24"
[ 10527.026] (**) Option "fd" "25"
[ 10527.027] (**) Option "fd" "26"
[ 10527.027] (**) Option "fd" "27"
[ 10527.027] (**) Option "fd" "28"
[ 10527.045] (**) Option "fd" "29"
[ 10527.288] (II) UnloadModule: "libinput"
[ 10527.288] (II) systemd-logind: releasing fd for 13:66
[ 10527.328] (II) UnloadModule: "libinput"
[ 10527.328] (II) systemd-logind: releasing fd for 13:65
[ 10527.360] (II) UnloadModule: "libinput"
[ 10527.360] (II) systemd-logind: releasing fd for 13:64
[ 10527.393] (II) UnloadModule: "libinput"
[ 10527.393] (II) systemd-logind: releasing fd for 13:67
[ 10527.444] (II) UnloadModule: "libinput"
[ 10527.444] (II) systemd-logind: releasing fd for 13:68
[ 10527.472] (II) UnloadModule: "libinput"
[ 10527.472] (II) systemd-logind: releasing fd for 13:72
[ 10527.488] (II) UnloadModule: "libinput"
[ 10527.488] (II) systemd-logind: releasing fd for 13:69
[ 10527.504] (II) UnloadModule: "libinput"
[ 10527.505] (II) systemd-logind: releasing fd for 13:71
[ 10527.827] (WW) xf86CloseConsole: KDSETMODE failed: Input/output error
[ 10527.835] (WW) xf86CloseConsole: VT_GETMODE failed: Input/output error
[ 10527.835] (WW) xf86CloseConsole: VT_ACTIVATE failed: Input/output error
[ 10528.917] (II) Server terminated successfully (0). Closing log file.

As telas são idênticas