双显卡，感觉N卡的闭源驱动还不如i7自带的GPU呢

硬件驱动
1

一直用 optirun 都比直接跑帧数多，网上说有个垂直的开启了，会限制。我设置为 0 启动，结果很诧异。感觉折腾双显卡白折腾了，intel 的就足够我挥霍的了。nvdia 的还是让他睡觉省电吧。
设置为 0 的 optirun 结果

dushibaiyu@dushibaiyu:~> vblank_mode=0 opritun glxspheres
If 'opritun' is not a typo you can use command-not-found to lookup the package that contains it, like this:
    cnf opritun
dushibaiyu@dushibaiyu:~> vblank_mode=0 oprtirun glxspheres
If 'oprtirun' is not a typo you can use command-not-found to lookup the package that contains it, like this:
    cnf oprtirun
dushibaiyu@dushibaiyu:~> vblank_mode=0 optirun glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x20
Context is Direct
OpenGL Renderer: GeForce 940M/PCIe/SSE2
129.442706 frames/sec - 144.458059 Mpixels/sec
130.035592 frames/sec - 145.119721 Mpixels/sec
130.966152 frames/sec - 146.158226 Mpixels/sec
130.473979 frames/sec - 145.608960 Mpixels/sec
130.902299 frames/sec - 146.086965 Mpixels/sec
130.869670 frames/sec - 146.050552 Mpixels/sec

不设置的结果，对于 optirun 没啥区别：

dushibaiyu@dushibaiyu:~> optirun glxspheres 
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x20
Context is Direct
OpenGL Renderer: GeForce 940M/PCIe/SSE2
125.496948 frames/sec - 140.054594 Mpixels/sec
126.587835 frames/sec - 141.272023 Mpixels/sec
126.954855 frames/sec - 141.681618 Mpixels/sec
127.989015 frames/sec - 142.835740 Mpixels/sec
127.947272 frames/sec - 142.789156 Mpixels/sec
128.185123 frames/sec - 143.054597 Mpixels/sec
128.447036 frames/sec - 143.346892 Mpixels/sec
128.131564 frames/sec - 142.994826 Mpixels/sec

primusrun 设置后的结果，几乎就和 optirun 差不多了：

dushibaiyu@dushibaiyu:~> vblank_mode=0 primusrun glxspheres
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Visual ID of window: 0xb3
Context is Direct
OpenGL Renderer: GeForce 940M/PCIe/SSE2
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
176.803440 frames/sec - 197.312638 Mpixels/sec
176.424224 frames/sec - 196.889434 Mpixels/sec
176.240721 frames/sec - 196.684645 Mpixels/sec
177.102877 frames/sec - 197.646811 Mpixels/sec
177.246194 frames/sec - 197.806752 Mpixels/sec
177.676338 frames/sec - 198.286793 Mpixels/sec

如果不设置就和 intel 的不设置一样，都是压到 60 执行：

dushibaiyu@dushibaiyu:~> primusrun glxspheres              
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0xb3
Context is Direct
OpenGL Renderer: GeForce 940M/PCIe/SSE2
62.170228 frames/sec - 69.381975 Mpixels/sec
60.016050 frames/sec - 66.977912 Mpixels/sec
60.010373 frames/sec - 66.971576 Mpixels/sec
60.016554 frames/sec - 66.978474 Mpixels/sec

让我震惊的是这个设置后的 intel 集显的威力，i7-4710MQ 的 CPU

dushibaiyu@dushibaiyu:~> vblank_mode=0 glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Visual ID of window: 0xb3
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) Haswell Mobile 
315.125130 frames/sec - 351.679646 Mpixels/sec
236.575616 frames/sec - 264.018388 Mpixels/sec
237.338023 frames/sec - 264.869234 Mpixels/sec
238.901035 frames/sec - 266.613555 Mpixels/sec
239.224917 frames/sec - 266.975007 Mpixels/sec

如果不设置，还是被压到 60：

dushibaiyu@dushibaiyu:~> glxspheres          
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0xb3
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) Haswell Mobile 
61.216860 frames/sec - 68.318015 Mpixels/sec
60.008762 frames/sec - 66.969779 Mpixels/sec
59.999539 frames/sec - 66.959486 Mpixels/sec
60.009649 frames/sec - 66.970768 Mpixels/sec
60.021941 frames/sec - 66.984487 Mpixels/sec
59.961530 frames/sec - 66.917067 Mpixels/sec
60.080968 frames/sec - 67.050360 Mpixels/sec
59.880526 frames/sec - 66.826667 Mpixels/sec
60.149619 frames/sec - 67.126975 Mpixels/sec
60.003065 frames/sec - 66.963421 Mpixels/sec
59.955430 frames/sec - 66.910260 Mpixels/sec
60.018279 frames/sec - 66.980399 Mpixels/sec
59.996915 frames/sec - 66.956557 Mpixels/sec
60.072583 frames/sec - 67.041003 Mpixels/sec

在 intel 里面能达到 230+，而 nvdia 最多也不到 180。

2

看到楼主的帖子我也试了下，集显是三代 IVB 的 hd 4000，光看跑分感觉还不错，其实性能和独显差好远的

taxue@openSUSE:~> optirun glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x20
Context is Direct
OpenGL Renderer: GeForce GT 650M/PCIe/SSE2
273.253607 frames/sec - 240.233642 Mpixels/sec
273.757233 frames/sec - 240.676409 Mpixels/sec
279.292344 frames/sec - 245.542657 Mpixels/sec
273.122026 frames/sec - 240.117961 Mpixels/sec
273.990561 frames/sec - 240.881541 Mpixels/sec
taxue@openSUSE:~> primusrun glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0xb4
Context is Direct
OpenGL Renderer: GeForce GT 650M/PCIe/SSE2
62.160071 frames/sec - 54.648648 Mpixels/sec
59.804409 frames/sec - 52.577644 Mpixels/sec
59.838452 frames/sec - 52.607574 Mpixels/sec
59.843909 frames/sec - 52.612371 Mpixels/sec
taxue@openSUSE:~> vblank_mode=0 glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
ATTENTION: default value of option vblank_mode overridden by environment.
ATTENTION: default value of option vblank_mode overridden by environment.
Visual ID of window: 0xb4
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile 
233.735576 frames/sec - 205.490969 Mpixels/sec
187.761644 frames/sec - 165.072527 Mpixels/sec
190.133948 frames/sec - 167.158162 Mpixels/sec
187.122481 frames/sec - 164.510600 Mpixels/sec
3

你玩一玩游戏就知道差距了，那个跑分太简单了，没有可比性

4

不过刚刚发现楼主的 940 和我的 650 跑分差距好大，实际上 940m 和 650m 不应该是差不多才对吗

5

jessie@linux-gwwh:~> glxspheres
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
Visual ID of window: 0x27
Context is Direct
OpenGL Renderer: GeForce GTX 765M/PCIe/SSE2
1397.410711 frames/sec - 1559.510353 Mpixels/sec
1524.277953 frames/sec - 1701.094195 Mpixels/sec
1670.197164 frames/sec - 1863.940035 Mpixels/sec
1598.911030 frames/sec - 1784.384710 Mpixels/sec
1642.602499 frames/sec - 1833.144388 Mpixels/sec
1625.320391 frames/sec - 1813.857556 Mpixels/sec
1673.888655 frames/sec - 1868.059739 Mpixels/sec
1511.417120 frames/sec - 1686.741505 Mpixels/sec
1458.725596 frames/sec - 1627.937765 Mpixels/sec
1678.282727 frames/sec - 1872.963524 Mpixels/sec

6

反正不玩游戏，自带绝对够用，nvidia 是个坑

7

的确啊。我是源里的驱动。
一般 nvidia 的那个显卡也用不到。

8

为毛没有人为我风骚的跑分击节叫好。。。

9

跑分有什么用

来自我的 m1 上的 Tapatalk

10

好好好！

11

不玩游戏是没有用滴。。。一旦玩了，你就秒懂了

12

以前玩游戏，卡成。。。。

算了，还好已经一年多不玩了