sudo service lightdm stop

sudo sh NVIDIA.run 

ERROR: The Nouveau kernel driver is currently in use by your system. This driver is incompatible with the nvidia driver, and must be disabled before proceeding. Please consult the NVIDIA driver README and your Linux distribution´s documentation for details on how to correctly disable the Nouveau kernel driver.

For some distributions, Nouveau can be disable by adding a file in the modprobe configuration directory. Would you like nvidia-installer to attempt to create this modprobe file for you?

One or more modprobe configuration files to disable Nouveau, have been written. For some distributions, this may be sufficient to disable Nouveau; other distributions may require modification of the initial ramdisk. Please reboot your system and attempt NVIDIA driver instalation again. Note if you later wish to reenable Nouveau, you will need to delete these files:
/etc/modprobe.d/nvidia-installer-diable-nouveau.conf

xrandr

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected primary 640x480+0+0 0mm x 0mm
   640x480        73.0*

ERROR: Unable to build the NVIDIA kernel module

# generated by nvidia-installer
blacklist nouveau
options nouveau modeset=0

nvidia-installer log file '/var/log/nvidia-installer.log'
creation time: Fri Aug 28 07:15:33 2015
installer version: 304.125

PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

nvidia-installer command line:
    ./nvidia-installer

Using: nvidia-installer ncurses user interface
-> License accepted.
-> Installing NVIDIA driver version 304.125.
-> Running distribution scripts
   executing: '/usr/lib/nvidia/pre-install'...
-> done.
-> The distribution-provided pre-install script failed!  Continue installation anyway? (Answer: Yes)
-> Performing CC sanity check with CC="cc".
-> Performing CC version check with CC="cc".
-> Kernel source path: '/lib/modules/3.19.0-26-generic/build'
-> Kernel output path: '/lib/modules/3.19.0-26-generic/build'
-> Performing rivafb check.
-> Performing nvidiafb check.
-> Performing Xen check.
-> Cleaning kernel module build directory.
   executing: 'cd ./kernel; make clean'...
-> Building kernel module:
   executing: 'cd ./kernel; make module SYSSRC=/lib/modules/3.19.0-26-generic/build SYSOUT=/lib/modules/3.19.0-26-generic/build'...
   NVIDIA: calling KBUILD...
   test -e include/generated/autoconf.h -a -e include/config/auto.conf || (      \
      echo >&2;                     \
      echo >&2 "  ERROR: Kernel configuration is invalid.";      \
      echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
      echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";   \
      echo >&2 ;                     \
      /bin/false)
   mkdir -p /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/.tmp_versions ; rm -f /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/.tmp_versions/*
   make -f ./scripts/Makefile.build obj=/tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel
     cc -Wp,-MD,/tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/.nv.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/include  -I./arch/x86/include -Iarch/x86/include/generated/uapi -Iarch/x86/include/generated  -Iinclude -I./arch/x86/include/uapi -Iarch/x86/include/generated/uapi -I./include/uapi -Iinclude/generated/uapi -include ./include/linux/kconfig.h -Iubuntu/include  -D__KERNEL
   __ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -std=gnu89 -m64 -mno-80387 -mno-fp-ret-in-387 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -fno-delete-null-pointer-checks -O2 --param=allow-store-data-races=0 -Wframe-larger-than=1024 -fstack-protector -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -pg -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -DCC_HAVE_ASM_GOTO -I/tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel -Wall
   -MD -Wsign-compare -Wno-cast-qual -Wno-error -D__KERNEL__ -DMODULE -DNVRM -DNV_VERSION_STRING=\"304.125\" -Wno-unused-function -Wuninitialized -mno-red-zone -mcmodel=kernel -UDEBUG -U_DEBUG -DNDEBUG  -DMODULE  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(nv)"  -D"KBUILD_MODNAME=KBUILD_STR(nvidia)" -c -o /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/.tmp_nv.o /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c
   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from ./include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/uapi/linux/capability.h:16,
                    from include/linux/capability.h:15,
                    from include/linux/sched.h:15,
                    from include/linux/utsname.h:5,
                    from /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv-linux.h:40,
                    from /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:13:
   include/asm-generic/qrwlock.h: In function ‘queue_write_trylock’:
   include/asm-generic/qrwlock.h:93:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             cnts, cnts | _QW_LOCKED) == cnts);
                                      ^
   include/linux/compiler.h:159:40: note: in definition of macro ‘likely’
    # define likely(x) __builtin_expect(!!(x), 1)
                                           ^
   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from ./include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/uapi/linux/capability.h:16,
                    from include/linux/capability.h:15,
                    from include/linux/sched.h:15,
                    from include/linux/utsname.h:5,
                    from /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv-linux.h:40,
                    from /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:13:
   ./arch/x86/include/asm/uaccess.h: In function ‘copy_from_user’:
   ./arch/x86/include/asm/uaccess.h:712:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (likely(sz < 0 || sz >= n))
                             ^
   include/linux/compiler.h:159:40: note: in definition of macro ‘likely’
    # define likely(x) __builtin_expect(!!(x), 1)
                                           ^
   ./arch/x86/include/asm/uaccess.h: In function ‘copy_to_user’:
   ./arch/x86/include/asm/uaccess.h:730:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (likely(sz < 0 || sz >= n))
                             ^
   include/linux/compiler.h:159:40: note: in definition of macro ‘likely’
    # define likely(x) __builtin_expect(!!(x), 1)
                                           ^
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c: In function ‘nv_kern_unlocked_ioctl’:
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:2029:30: error: ‘struct file’ has no member named ‘f_dentry’
        return nv_kern_ioctl(file->f_dentry->d_inode, file, cmd, i_arg);
                                 ^
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c: In function ‘nv_kern_compat_ioctl’:
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:2038:30: error: ‘struct file’ has no member named ‘f_dentry’
        return nv_kern_ioctl(file->f_dentry->d_inode, file, cmd, i_arg);
                                 ^
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c: In function ‘nv_kern_unlocked_ioctl’:
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:2030:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c: In function ‘nv_kern_compat_ioctl’:
   /tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.c:2039:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
   make[3]: *** [/tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel/nv.o] Error 1
   make[2]: *** [_module_/tmp/selfgz2383/NVIDIA-Linux-x86_64-304.125/kernel] Error 2
   NVIDIA: left KBUILD.
   nvidia.ko failed to build!
   make[1]: *** [module] Error 1
   make: *** [module] Error 2
-> Error.
ERROR: Unable to build the NVIDIA kernel module.
ERROR: Installation has failed.  Please see the file '/var/log/nvidia-installer.log' for details.  You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.

xrandr

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA-1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  

sudo apt-get remove --purge nvidia*

cvt 1600 900

# 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHz
Modeline "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync

sudo xrandr --newmode "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync

xrandr

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA-1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
  1600x900_60.00 (0x297)  118.2MHz
        h: width  1600 start 1696 end 1856 total 2112 skew    0 clock   56.0KHz
        v: height  900 start  903 end  908 total  934           clock   59.9Hz

sudo xrandr --addmode VGA-1 "1600x900_60.00"

#!/bin/sh
xrandr --output VGA-1 --mode "1600x900"
sleep 15
xrandr --output VGA-1 --mode "1024x768"

sudo xrandr --output VGA-1 --mode "1600x900_60.00"

Screen 0: minimum 320 x 200, current 1600 x 900, maximum 4096 x 4096
VGA-1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0  
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
   1600x900_60.00   59.9*

xrandr --newmode "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
xrandr --addmode VGA-1 "1600x900_60.00"
xrandr --output VGA-1 --mode "1600x900-60.00"
 

Si quieres instalar nvidia-304 porque no intentas

sudo -i
service lightdm stop

sudo -i
loadkeys es
Xorg -configure
mv /root/xorg.conf.new /etc/X11/xorg.conf

"Modes 1600x900"

Modes      "1920x1200R"

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 "InputDevice"

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


Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "CRT-0"
    HorizSync      30.0 - 81.0
    VertRefresh    56.0 - 75.0
    # 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHz
    Modeline       "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Card0"
    Driver         "nouveau"
    BusID       "PCI:0:13:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
     SubSection     "Display"
        Depth       24
        Modes       "1600x900_60.00"
    EndSubSection
EndSection

ACPI PCC Probe failed
sd4:0:0:0:[sdb[ No catching mode page found
sd4:0:0:0:[sdb[ Assuming drive cacvhe: write through
hid-generic 0003:1C4F:0016.0002.usb_submit_urb (ctrl) failed: -1