笔记本是核显

Cairo-Dock开启Opengl，特效都有残影，而且也不顺畅，我的另外一台独显的笔记本就不会出现，是核显不支持吗？


硬件信息：
nanzhu@localhost:~$ lspci -vnn | grep VGA -A 12
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
DeviceName: Onboard IGD
Subsystem: Dell Broadwell-U Integrated Graphics [1028:0631]
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at f6000000 (64-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915

00:03.0 Audio device [0403]: Intel Corporation Broadwell-U Audio Controller [8086:160c] (rev 09)
nanzhu@localhost:~$ lshw -C display
WARNING: you should run this program as super-user.
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:49 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
nanzhu@localhost:~$ sudo lshw -c video | grep configuration
configuration: driver=i915 latency=0

OpenGL信息：
nanzhu@localhost:~$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.2.0
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 11.2.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions: