0leynik · February 17, 2018 17:28 · Jan 9, 2017 · Jan 9, 2017 · Jan 9, 2017 · Jan 9, 2017
diff --git a/configure_cuda_p70.md b/configure_cuda_p70.md
@@ -12,7 +12,7 @@ This happened regardless if I installed the drivers from the "Additional Drivers
 The solution is described in the answer from [this post](http://askubuntu.com/questions/779530/how-to-configure-igpu-for-xserver-and-nvidia-gpu-for-cuda).
 
 ## Install the NVIDIA drivers
-Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile])(http://www.nvidia.com/Download/driverResults.aspx/112992/en-us).
+Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile](http://www.nvidia.com/Download/driverResults.aspx/112992/en-us)).
 Run the script with the option `--no-opengl-files`:
 ```
 sudo ./NVIDIA-Linux-x86_64-375.26.run --no-opengl-files

diff --git a/configure_cuda_p70.md b/configure_cuda_p70.md
@@ -12,7 +12,7 @@ This happened regardless if I installed the drivers from the "Additional Drivers
 The solution is described in the answer from [this post](http://askubuntu.com/questions/779530/how-to-configure-igpu-for-xserver-and-nvidia-gpu-for-cuda).
 
 ## Install the NVIDIA drivers
-Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile](http://www.nvidia.com/Download/driverResults.aspx/112992/en-us).
+Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile])(http://www.nvidia.com/Download/driverResults.aspx/112992/en-us).
 Run the script with the option `--no-opengl-files`:
 ```
 sudo ./NVIDIA-Linux-x86_64-375.26.run --no-opengl-files

diff --git a/configure_cuda_p70.md b/configure_cuda_p70.md
@@ -66,4 +66,13 @@ EndSection
 ```
 The `BusID` should match what the `lspci` command above returned.
 
+Reboot.
+
+## Miscellaneous tips
+If installing the NVIDIA drivers messes up the OS (e.g. it gets stuck in a login loop or it shows a black screen before the login step), you can uninstall the drivers by openning a console with Ctrl-Alt-F1 and running:
+```
+sudo apt-get remove --purge nvidia-*
+sudo apt-get autoremove
+echo "nouveau" | sudo tee -a /etc/modules
+```
 Reboot.
diff --git a/configure_cuda_p70.md b/configure_cuda_p70.md
@@ -9,17 +9,17 @@ A reason to use the integrated graphics for display is if installing the NVIDIA
 In my case, [Ubuntu would get stuck in a login loop after installing the NVIDIA drivers](http://askubuntu.com/questions/223501/ubuntu-gets-stuck-in-a-login-loop).
 This happened regardless if I installed the drivers from the "Additional Drivers" tab in "System Settings" or the `ppa:graphics-drivers/ppa` in the command-line.
 
-The solution is described in the answer from [this post](http://askubuntu.com/questions/779530/how-to-configure-igpu-for-xserver-and-nvidia-gpu-for-cuda):
+The solution is described in the answer from [this post](http://askubuntu.com/questions/779530/how-to-configure-igpu-for-xserver-and-nvidia-gpu-for-cuda).
 
-# Install the NVIDIA drivers
+## Install the NVIDIA drivers
 Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile](http://www.nvidia.com/Download/driverResults.aspx/112992/en-us).
 Run the script with the option `--no-opengl-files`:
 ```
 sudo ./NVIDIA-Linux-x86_64-375.26.run --no-opengl-files
 ```
 Reboot.
 
-# Install CUDA
+## Install CUDA
 Download the CUDA installation runfile from [their website](https://developer.nvidia.com/cuda-downloads).
 It's important to download the "runfile (local)" file so that we can explicitly prevent from overwriting the driver that was just installed.
 Run the script:
@@ -28,7 +28,7 @@ sudo ./cuda_8.0.44_linux.run
 ```
 Respond "no" when asked "Install NVIDIA accelerated Graphics Driver for Linux-x86_65 375.26?".
 
-# Configure xorg.conf
+## Configure xorg.conf
 Modify or create the file `/etx/X11/xorg.conf` to specify that the NVIDIA GPU should be used for a secondary screen so that it has entries in `nvidia-settings`.
 Mine looks like this:
 ```
@@ -65,4 +65,5 @@ Section "Screen"
 EndSection
 ```
 The `BusID` should match what the `lspci` command above returned.
+
 Reboot.
diff --git a/configure_cuda_p70.md b/configure_cuda_p70.md
@@ -0,0 +1,68 @@
+This was tested on a ThinkPad P70 laptop with an Intel integrated graphics and an NVIDIA GPU:
+```
+lspci | egrep 'VGA|3D'
+00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
+01:00.0 VGA compatible controller: NVIDIA Corporation GM204GLM [Quadro M3000M] (rev a1)
+```
+
+A reason to use the integrated graphics for display is if installing the NVIDIA drivers causes the display to stop working properly.
+In my case, [Ubuntu would get stuck in a login loop after installing the NVIDIA drivers](http://askubuntu.com/questions/223501/ubuntu-gets-stuck-in-a-login-loop).
+This happened regardless if I installed the drivers from the "Additional Drivers" tab in "System Settings" or the `ppa:graphics-drivers/ppa` in the command-line.
+
+The solution is described in the answer from [this post](http://askubuntu.com/questions/779530/how-to-configure-igpu-for-xserver-and-nvidia-gpu-for-cuda):
+
+# Install the NVIDIA drivers
+Download the driver installation runfile from their website (e.g. [the 375.26 driver runfile](http://www.nvidia.com/Download/driverResults.aspx/112992/en-us).
+Run the script with the option `--no-opengl-files`:
+```
+sudo ./NVIDIA-Linux-x86_64-375.26.run --no-opengl-files
+```
+Reboot.
+
+# Install CUDA
+Download the CUDA installation runfile from [their website](https://developer.nvidia.com/cuda-downloads).
+It's important to download the "runfile (local)" file so that we can explicitly prevent from overwriting the driver that was just installed.
+Run the script:
+```
+sudo ./cuda_8.0.44_linux.run 
+```
+Respond "no" when asked "Install NVIDIA accelerated Graphics Driver for Linux-x86_65 375.26?".
+
+# Configure xorg.conf
+Modify or create the file `/etx/X11/xorg.conf` to specify that the NVIDIA GPU should be used for a secondary screen so that it has entries in `nvidia-settings`.
+Mine looks like this:
+```
+Section "ServerLayout"
+    Identifier "layout"
+    Screen 0 "intel"
+    Screen 1 "nvidia"
+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
+```
+The `BusID` should match what the `lspci` command above returned.
+Reboot.
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