Comment 64 for bug 1296020

This bug also appears on the latest LTS release, provided files are from live session so there is no nvidia-prime package installed (should I open new bug?) I am using Lenovo G580 and also have dual graphics cards intel/nvidia. I am enclosing lshw output in the attachment.

 lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial

xrandr
Screen 0: minimum 8 x 8, current 2390 x 768, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768 60.00*+
   1360x768 59.80 59.96
   1280x720 60.00
   1024x768 60.00
   1024x576 60.00
   960x540 60.00
   800x600 60.32 56.25
   864x486 60.00
   640x480 59.94
   720x405 60.00
   680x384 60.00
   640x360 60.00
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
VGA-1-2 connected 1024x768+1366+0 0mm x 0mm
   1024x768 60.00*
   800x600 60.32 56.25
   848x480 60.00
   640x480 59.94
  1024x768 (0x43) 65.000MHz -HSync -VSync
        h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
        v: height 768 start 771 end 777 total 806 clock 60.00Hz
  800x600 (0x44) 40.000MHz +HSync +VSync
        h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
        v: height 600 start 601 end 605 total 628 clock 60.32Hz
  800x600 (0x45) 36.000MHz +HSync +VSync
        h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
        v: height 600 start 601 end 603 total 625 clock 56.25Hz
  640x480 (0x47) 25.175MHz -HSync -VSync
        h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
        v: height 480 start 490 end 492 total 525 clock 59.94Hz