Editar:

Editar:

Tengo una computadora portátil con dos gpus (Intel HD4600, Nvidia GTX850M) que ejecuta Ubuntu junto con Windows 10 (no tiene problemas) usando GRUB.

Lo instalé nvidia-355y no lo instalé bumblebeedebido a malas experiencias (nunca lo logré funcionar o rompí la instalación).

Problema:

Algo relacionado con la visualización/gráficos falla cuando tengo una gran carga gráfica, veo una parte de los mensajes de inicio parpadear brevemente y estoy en la pantalla de inicio de sesión nuevamente.

salida lscpi que enumera ambos gpus

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 850M] (rev a2)

salida dmesg

[ 3266.232929] NVRM: GPU at PCI:0000:01:00: GPU-d1657723-9e43-04db-5cdc-6df0c522eb41
[ 3266.232946] NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception on GPC 0: 3D-C MEMLAYOUT Violation. Coordinates: (0xe0, 0x0)
[ 3266.232954] NVRM: Xid (PCI:0000:01:00): 13, Graphics Exception: ESR 0x500420=0x80000400 0x500434=0xe0 0x500438=0x3d00 0x50043c=0x310000

Esto se repite una y otra vez cien veces.

Jugué con mi xorg.confeste fin de semana, se veía así antes:

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "intel"
    BusID "PCI:0@0:2:0"
    Option "AccelMethod" "SNA"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:1@0:0:0"
    Option "ConstrainCursor" "off"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "on"
    Option "IgnoreDisplayDevices" "CRT"
EndSection

Todo lo que intenté cambiar se sobrescribió en el siguiente inicio o inicio de sesión gráfico.
Agregué nogpumanagera mis opciones de arranque y obtuve la configuración del servidor Nvidia X para generar esta configuración por mí:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 361.18  (buildd@lcy01-23)  Thu Jan 14 12:00:04 UTC 2016

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nouveau"
#edit, i had to change ^ nvidia to nouveau in order for gui to start
    BusID          "PCI:1@0:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    DefaultDepth    24
    Option         "UseDisplayDevice" "none"
    SubSection     "Display"
        Virtual     1920 1080
        Depth       24
    EndSubSection
EndSection

De alguna manera no se sobrescribió al arrancar.

¿Qué está causando las experiencias no tan agradables que tengo y cómo lo soluciono?

Los controladores de gráficos, la configuración del controlador y las cosas que podrían impedirme arrancar en la interfaz gráfica de usuario no son mis puntos fuertes, por lo que solo estoy dispuesto a probar cosas de las que pueda recuperarme si algo sale mal.

Lo que yo sé:

  • Arrancar sin la nogpumanagerbandera restaurará mi xorg.conf a los valores predeterminados.
  • El uso del controlador nvidia en lugar del nouveau impedirá el inicio desde la interfaz gráfica de usuario.

Editar:

Intenté reproducir el problema, pero sucedió algo más. Con un par de programas abiertos, la interfaz gráfica de usuario se congeló en alt-tab y se volvió completamente negra. Los sonidos de los programas no cesaron y pude acceder a los TTY. Necesitaba reiniciar lightdm para volver a la interfaz gráfica de usuario.

~/.xsession-errors (el resultado completo, solo dos líneas):

openConnection: connect: No such file or directory
cannot connect to brltty at :0

/var/log/Xorg.0.log.old (desde la pantalla negra):

La parte de NVIDIA(0): Setting mode "NULL"a reuse xkmfile /var/lib/xkb/server-7A...está ahí porque cambié de gui (tty7) a tty2.

[  1485.990] (II) NVIDIA(0): Setting mode "NULL"
[  1485.990] (II) intel(G0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[  1486.072] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[  1486.128] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.137] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.144] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.148] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.159] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.168] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.176] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1486.182] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.369] (II) NVIDIA(0): Setting mode "NULL"
[  1523.370] (II) intel(G0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[  1523.460] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[  1523.511] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.518] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.523] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.533] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.542] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.551] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.559] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1523.567] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.636] (II) NVIDIA(0): Setting mode "NULL"
[  1533.636] (II) intel(G0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[  1533.724] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[  1533.775] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.782] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.791] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.797] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.807] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.815] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.821] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1533.830] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.439] (II) NVIDIA(0): Setting mode "NULL"
[  1592.440] (II) intel(G0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[  1592.520] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[  1592.576] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.582] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.592] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.599] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.607] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.615] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.622] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1592.632] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1614.636] (II) NVIDIA(0): Setting mode "NULL"
[  1614.636] (II) intel(G0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[  1614.932] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[  1615.010] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.018] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.028] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.034] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.044] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.053] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.061] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1615.068] (II) XKB: reuse xkmfile /var/lib/xkb/server-7A62FE502E17CBF754B0622983D8729CAFBF8366.xkm
[  1625.398] (EE) 
[  1625.398] (EE) Backtrace:
[  1625.399] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x563c7bd7f5a6]
[  1625.399] (EE) 1: /usr/bin/X (0x563c7bbcc000+0x1b7709) [0x563c7bd83709]
[  1625.399] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fa6e5f94000+0x352f0) [0x7fa6e5fc92f0]
[  1625.399] (EE) 3: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa6e1663000+0xb4d6e) [0x7fa6e1717d6e]
[  1625.399] (EE) 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa6e1663000+0x594ad) [0x7fa6e16bc4ad]
[  1625.399] (EE) 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa6e1663000+0x8d8ea) [0x7fa6e16f08ea]
[  1625.399] (EE) 6: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa6e1663000+0x5c3e16) [0x7fa6e1c26e16]
[  1625.399] (EE) 
[  1625.399] (EE) Segmentation fault at address 0x28
[  1625.399] (EE) 
Fatal server error:
[  1625.399] (EE) Caught signal 11 (Segmentation fault). Server aborting
[  1625.399] (EE) 
[  1625.399] (EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
[  1625.399] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[  1625.399] (EE) 
[  1625.399] (EE) Server terminated with error (1). Closing log file.

información relacionada