I have a problem with display resolution on debian9.9.
I installed the lastest stable Debian with DVD1.iso 3 days ago, kernel 4.9.0, and I can't change the resolution of my Dell 2471h monitor. The default resolution is 1024x768 and I want 1920x1080.
I have tried xrandr way, following the answer of https://superuser.com/questions/716795/how-to-adjust-the-screen-resolution-in-debian by Bruno9779 .
Though I can see the 1920x1080 resolution option with command xrandr, but when I execute
xrandr --output default --mode "1920x1080_60.00, it dosen't work, and show errors like
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
I think there is something wrong with the graphic card driver
$lspci |grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Device 3e92