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http://blog.csdn.net/wind19/article/details/17095541
lspci | grep -i vga
这样就可以显示机器上的显卡信息，比如
[root@localhost conf]# lspci | grep -i vga
01:00.0 VGA compatible controller: nVidia Corporation Device 1081 (rev a1) 02:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2) 08:05.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 10)
如果想看详细的信息，比如 GeForce GT 240，即 02:00.0
[root@localhost conf]# lspci -v -s 02:00.0
02:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device 8351 Flags: bus master, fast devsel, latency 0, IRQ 169 Memory at f9000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at ce000000 (64-bit, prefetchable) [size=32M] I/O ports at bc00 [size=128] [virtual] Expansion ROM at f8f80000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information: Len=14 <?> Capabilities: [100] Virtual Channel Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?> Kernel driver in use: nvidia Kernel modules: nvidiafb, nvidia可以看到GT240的显存是 256M
但是我的系统上其实是装了两块显卡的，还有一块显示不出来，这个时候，对于nvidia显卡的话可以用nvidia-smi命令来查
[root@localhost conf]# nvidia-smi
Tue Dec 3 14:46:02 2013 +------------------------------------------------------+ | NVIDIA-SMI 4.304.54 Driver Version: 304.54 | |-------------------------------+----------------------+----------------------+ | GPU Name | Bus-Id Disp. | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | |===============================+======================+======================| | 0 GeForce GTX 570 | 0000:01:00.0 N/A | N/A | | 50% 65C N/A N/A / N/A | 49% 624MB / 1279MB | N/A Default | +-------------------------------+----------------------+----------------------+ | 1 GeForce GT 240 | 0000:02:00.0 N/A | N/A | | N/A 39C N/A N/A / N/A | 1% 2MB / 255MB | N/A Default | +-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Compute processes: GPU Memory | | GPU PID Process name Usage | |=============================================================================| | 0 Not Supported | | 1 Not Supported | +-----------------------------------------------------------------------------+
可以看到，还有一块显卡是 GTX 570， 显存是 1279M，也就是我们用lspci看到的 01:00.0
nvidia-smi -a
有两个内存一个是FB Memory Usage，一个是BAR1 Memory Usage