Enable Sync to VBlank on LXDE with Intel Video Card

Question

How can I enable Sync To VBlank in LXDE? My video card is Intel, and I'm having screen tearing.

Solution

Edit your /etc/X11/xorg.conf.d/20-intel.conf

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "sna"
Option         "TearFree" "true"
EndSection

Edit your /etc/default/grub

On the line with GRUB_CMDLINE_LINUX_DEFAULT

i915.i915_enable_rc6=1 i915.semaphores=1 pcie_aspm=force 

Comments

[sashoalm]

I don't have xorg.conf.d in /etc/X11.

[Daniel Alder]

@sashoalm In Ubuntu, there is no /etc/X11/xorg.conf.d/ anymore, but creating it is save. Alternatively, you can create it in /usr/share/X11/xorg.conf.d/. You can check /var/log/Xorg.0.log if you are unsure, I see the two lines Option "AccelMethod" "sna" and Option "TearFree" "true" in it.

[Hieu]

Confirmed this works for Lubuntu 15.10 with intel graphics. Just need to add 20-intel.conf to /usr/share/X11/xorg.conf.d/. No need to change /etc/default/grub.

[WinEunuuchs2Unix]

You can improve your answer with a screen shot. Also note there are additional things to setup tear-free such as /etc/X11/xorg.conf.d/20-intel.conf and adding line Option "TearFree" "true". Welcome to AskUbuntu and thank you for your answer. `

[George Udosen]

Your answer would look great with a screen shot.