Did you try to change the Xvesa resolution with xsetup.sh?
Did you try using an Xorg.conf snippet to set the resolution with Xorg-7.7?
Have you tried the modesetting driver with Xorg-7.7 (do not load the xf86-video-intel extension)?
Did you try using an Xorg.conf snippet to set the resolution with Xorg-7.7?
Have you tried the modesetting driver with Xorg-7.7 (do not load the xf86-video-intel extension)?