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I have an older Lenovo P500 laptop (Hardware maintenance manual) w/ HDMI and VGA outputs running Linux Mint 19. I would like to use a Dell E2414H monitor which has VGA and DVI-D inputs.

I initially tried a VGA adapter, however there is some electrical interference caused by the laptop power supply. I purchased an HDMI-DVI-D cable, and after a few reboots it was detected and outputs as expected.

However, now on the primary (laptop) display, when I move the cursor or windows, there are large blacked-out tiles that appear on the display.

Supposedly all Intel graphics drivers are included in Mint and should "just work"... any suggestions?

Would like to understand any further troubleshooting steps and get a deeper understanding in to what the issue may be. Thank you!

Here's system specs:

System:    Host: jon-IdeaPad Kernel: 4.15.0-38-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Cinnamon 3.8.9 (Gtk 3.22.30-1ubuntu1) dm: lightdm  
Distro: Linux Mint 19 Tara  
Machine:   Device: laptop System: LENOVO product: 20210 v: Lenovo IdeaPad P500 serial: N/A Mobo: LENOVO model: INVALID v: 31900003WIN8 STD MLT serial: N/A UEFI [Legacy]: LENOVO v: 71CN22WW(V1.05) date: 09/14/2012 Chassis: type: 10 v: Lenovo IdeaPad P500 serial: N/A  
CPU:       Dual core Intel Core i7-3520M (-MT-MCP-) arch: Ivy Bridge rev.9 cache: 4096 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 11573 clock speeds: min/max: 1200/3600 MHz 1: 1249 MHz 2: 1259 MHz 3: 1266 MHz 4: 1264 MHz  
Graphics:  Card: Intel 3rd Gen Core processor Graphics Controller bus-ID: 00:02.0 chip-ID: 8086:0166 Display Server: x11 (X.Org 1.19.6 ) drivers: modesetting (unloaded: fbdev,vesa) Resolution: 1366x768@60.06hz, 1920x1080@60.00hz OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile version: 4.2 Mesa 18.0.5 (compat-v: 3.0) Direct Render: Yes  

xrandr:

Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192
LVDS-1 connected primary 1366x768+1920+312 (normal left inverted right x axis y axis) 344mm x 194mm  
   1366x768      60.06*+  
   1360x768      59.80    59.96    
   1280x720      60.00    59.99    59.86    59.74    
   1024x768      60.04    60.00    
   960x720       60.00    
   928x696       60.05    
   896x672       60.01    
   1024x576      59.95    59.96    59.90    59.82    
   960x600       59.93    60.00    
   960x540       59.96    59.99    59.63    59.82    
   800x600       60.00    60.32    56.25    
   840x525       60.01    59.88    
   864x486       59.92    59.57    
   800x512       60.17    
   700x525       59.98    
   800x450       59.95    59.82    
   640x512       60.02    
   720x450       59.89    
   700x450       59.96    59.88    
   640x480       60.00    59.94    
   720x405       59.51    58.99    
   684x384       59.88    59.85    
   680x384       59.80    59.96    
   640x400       59.88    59.98    
   576x432       60.06    
   640x360       59.86    59.83    59.84    59.32    
   512x384       60.00    
   512x288       60.00    59.92    
   480x270       59.63    59.82    
   400x300       60.32    56.34    
   432x243       59.92    59.57    
   320x240       60.05    
   360x202       59.51    59.13    
   320x180       59.84    59.32    
VGA-1 disconnected (normal left inverted right x axis y axis)  
HDMI-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm  
   1920x1080     60.00*+  
   1600x900      60.00    
   1280x1024     75.02    60.02    
   1152x864      75.00    
   1024x768      75.03    60.00    
   800x600       75.00    60.32    
   640x480       75.00    59.94    
   720x400       70.08    
DP-1 disconnected (normal left inverted right x axis y axis)  

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