Problemas gráficos no Ubuntu 14.04 Lenovo Thinkpad W540

Question

Recentemente, estou tendo problemas com meus gráficos e meu computador está relativamente lento. Eu tenho o seguinte erro do meu kernel:

cat  /var/log/kern.log | grep failed

[121792.821076] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[121792.827083] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[121796.838749] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[166910.746085] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[166910.752098] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169118.271216] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169118.277014] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169140.653737] Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0):
[169140.727093] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169140.732969] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169145.090743] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[169155.277671] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169155.283461] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169328.691935] Freezing of tasks failed after 20.007 seconds (1 tasks refusing to freeze, wq_busy=0):
[169328.770065] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169328.775894] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169362.526724] Freezing of tasks failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0):
[169362.633597] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169362.639387] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[169403.965727] Freezing of tasks failed after 20.007 seconds (1 tasks refusing to freeze, wq_busy=0):
[169404.042353] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[169404.048149] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[    0.235773] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    7.532302] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    0.389624] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[   85.143742] CIFS VFS: cifs_mount failed w/return code = -115
[    0.235796] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    7.748205] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    0.242944] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    0.238618] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    7.443180] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    9.983506] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[ 3345.671018] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    0.238784] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    6.375705] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    8.810912] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    0.239961] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
[    6.412908] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16
[    8.835804] nouveau E[  PGRAPH][0000:01:00.0] init failed, -16

Da mesma forma, a saída de

sudo lshw -c video

é

*-display               
   description: VGA compatible controller
   product: GK106GLM [Quadro K2100M]
   vendor: NVIDIA Corporation
   physical id: 0
   bus info: pci@0000:01:00.0
   version: a1
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
   configuration: driver=nouveau latency=0
   resources: irq:49 memory:b0000000-b0ffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:4000(size=128) memory:b1000000-b107ffff
*-display
   description: VGA compatible controller
   product: 4th Gen Core Processor Integrated Graphics Controller
   vendor: Intel Corporation
   physical id: 2
   bus info: pci@0000:00:02.0
   version: 06
   width: 64 bits
   clock: 33MHz
   capabilities: msi pm vga_controller bus_master cap_list rom
   configuration: driver=i915 latency=0
   resources: irq:46 memory:b1400000-b17fffff memory:a0000000-afffffff ioport:5000(size=64)

A saída de

ubuntu-drivers devices

é

== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd000011FCsv000017AAsd00002211bc03sc00i00
vendor   : NVIDIA Corporation
driver   : nvidia-352 - third-party free
driver   : nvidia-355 - third-party free recommended
driver   : nvidia-346 - third-party free
driver   : nvidia-346-updates - distro non-free
driver   : nvidia-340 - third-party free
driver   : nvidia-340-updates - distro non-free
driver   : xserver-xorg-video-nouveau - distro free builtin

Eu tive que consertar o laptop congelado por causa do erro gráfico recentemente. Você pode, por favor, encontrar a causa do erro e da solução?

    

Answer 1

Instale o driver NVIDIA estável mais recente e o suporte ao Optimus do PPA dos drivers proprietários da GPU:

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-355 nvidia-prime
sudo reboot

    

Answer 2

Você pode instalar os drivers executando no terminal

sudo apt-get update
sudo apt-get install nvidia-346 nvidia-prime

    

Answer 3

Você já tentou isso:

sudo apt-get install xorg-xserver-video-all

e pode funcionar bem assim.