![为什么我的图形内存看起来比我预期的要少?](https://linux22.com/image/171006/%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E7%9A%84%E5%9B%BE%E5%BD%A2%E5%86%85%E5%AD%98%E7%9C%8B%E8%B5%B7%E6%9D%A5%E6%AF%94%E6%88%91%E9%A2%84%E6%9C%9F%E7%9A%84%E8%A6%81%E5%B0%91%EF%BC%9F.png)
我在运行 OpenSuSE Leap 15.1 64 位的台式计算机中使用板载图形适配器。在 BIOS 中,我选择为图形适配器分配 1024MB RAM,但操作系统认为它有 256MB。
这种差异有什么明显的原因吗?
lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd Device d000
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915