A few days ago, I was finally able to install FreeBSD 11-RELEASE on my HP Pavilion dm3-1130us notebook (see FreeBSD: gptzfsboot: No ZFS pools located, can't boot on FreeBSD 11-RELEASE) and started configuring it. Then, time to time, I needed to find the installed video driver for my system. So, here is the command:
$ pciconf -lv | grep -B3 display
vgapci@pci0:1:5:0 class=0x030000 card=0x3656103c chip=0x96121002 rev=0x00 hdr=0x00
vendor = 'Advanced Micro Devices, Inc. [AMD/ATI]'
device = 'RS780M [Mobility Radeon HD 3200]'
class = display
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