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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)