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发表于 2015-3-6 17:43:17
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本帖最后由 Lynt 于 2015-3-6 17:45 编辑
今天研究了一下N家驱动官方说明,发现一些可以尝试的,其中关于coolbits的说明,看了这个也明白为何要设成28了(16+8+4,打开对应的三个功能):- Option "Coolbits" "integer"
- Enables various unsupported features, such as support for GPU clock manipulation in the NV-CONTROL X extension. This option accepts a bit mask of features to enable.
- WARNING: this may cause system damage and void warranties. This utility can run your computer system out of the manufacturer's design specifications, including, but not limited to: higher system voltages, above normal temperatures, excessive frequencies, and changes to BIOS that may corrupt the BIOS. Your computer's operating system may hang and result in data loss or corrupted images. Depending on the manufacturer of your computer system, the computer system, hardware and software warranties may be voided, and you may not receive any further manufacturer support. NVIDIA does not provide customer service support for the Coolbits option. It is for these reasons that absolutely no warranty or guarantee is either express or implied. Before enabling and using, you should determine the suitability of the utility for your intended use, and you shall assume all responsibility in connection therewith.
- When "2" (Bit 1) is set in the "Coolbits" option value, the NVIDIA driver will attempt to initialize SLI when using GPUs with different amounts of video memory.
- When "4" (Bit 2) is set in the "Coolbits" option value, the nvidia-settings Thermal Monitor page will allow configuration of GPU fan speed, on graphics boards with programmable fan capability.
- When "8" (Bit 3) is set in the "Coolbits" option value, the PowerMizer page in the nvidia-settings control panel will display a table that allows setting per-clock domain and per-performance level offsets to apply to clock values. This is allowed on certain GeForce GPUs. Not all clock domains or performance levels may be modified.
- When "16" (Bit 4) is set in the "Coolbits" option value, the nvidia-settings command line interface allows setting GPU overvoltage. This is allowed on certain GeForce GPUs.
- When this option is set for an X screen, it will be applied to all X screens running on the same GPU.
- The default for this option is 0 (unsupported features are disabled).
复制代码 http://us.download.nvidia.com/XFree86/Linux-x86_64/346.47/README/xconfigoptions.html
最后提到 When this option is set for an X screen, it will be applied to all X screens running on the same GPU. 这个还是对X screen设置然后套用到对应GPU的。
另外用查看这个nvidia-xconfig指令的详细说明,发现一个参数(-a或--enable-all-gpus):- -a, --enable-all-gpus
- Configure an X screen on every GPU in the system.
复制代码 貌似可以为系统中每个GPU(应该指N卡GPU)创建一个 X screen,我理解为这个 X screen中包含系统中所有GPU或者是为每个GPU创建一个 X screen,不知道哪个对,可以尝试一下,看看结果,用这条指令(执行前请备份旧的配置文件/etc/X11/xorg.conf): |
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