增加intel-Gm45系列的板载图形存储卡

最近我将RAM模块升级为2 * 4GB 800 Mhz双通道。 我的Ubuntu 12.04中也有10GB的交换空间。 有点奇怪，我没有操作BIOS上的板载图形卡的选项（Inspiron-1545，BIOS Ver.A14）。 更改RAM模块后，仍然在BIOS中写入32 MB。

现在我有256M作为光圈，任何想法如何手动增加，以在高清video上有更好的性能？ 有人请解释这32MB BIOS和256MB光圈之间的差异。

以下是我的系统和显卡基准测试的一些信息：

======================================================= glmark2 2011.09 ======================================================= OpenGL Information GL_VENDOR: Intel Open Source Technology Center GL_RENDERER: Mesa DRI Mobile Intel® GM45 Express Chipset GL_VERSION: 2.1 Mesa 9.1.7 ======================================================= [build] use-vbo=false: FPS: 300 [build] use-vbo=true: FPS: 325 [texture] texture-filter=nearest: FPS: 374 [texture] texture-filter=linear: FPS: 375 [texture] texture-filter=mipmap: FPS: 410 [shading] shading=gouraud: FPS: 250 [shading] shading=blinn-phong-inf: FPS: 260 [shading] shading=phong: FPS: 222 [bump] bump-render=high-poly: FPS: 156 [bump] bump-render=normals: FPS: 353 [effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 145 [effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 72 [pulsar] light=false:quads=5:texture=false: FPS: 300 [desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 74 [conditionals] fragment-steps=0:vertex-steps=0: FPS: 327 [conditionals] fragment-steps=5:vertex-steps=0: FPS: 268 [conditionals] fragment-steps=0:vertex-steps=5: FPS: 327 [function] fragment-complexity=low:fragment-steps=5: FPS: 324 [function] fragment-complexity=medium:fragment-steps=5: FPS: 242 [loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 315 [loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 315 [loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 226 ======================================================= glmark2 Score: 270 ======================================================= 

显卡信息：

 [0.000000] No AGP bridge found [0.000000] No AGP bridge found [0.718565] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000