I have two theories at least:
1. modesetting can't deal with hiDPI very well; or
2. compiz/unity7 is falling back to software rendering under the modesetting 
driver.

Can you please test #2? Just tap the Super key to open the Unity7 dash.
Is it translucent or solid coloured?

Also, failure to set correct permissions for /dev/dri/* I think is
lightdm's problem. So adding lightdm here.

** Also affects: lightdm (Ubuntu)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1632165

Title:
  modesetting driver unbearably slow on intel graphics

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1632165/+subscriptions

_______________________________________________
Mailing list: https://launchpad.net/~ubuntu-x-swat
Post to     : ubuntu-x-swat@lists.launchpad.net
Unsubscribe : https://launchpad.net/~ubuntu-x-swat
More help   : https://help.launchpad.net/ListHelp

Reply via email to