DisplayPort 有不同的版本，所有版本都使用相同的电缆和端接器，但协议版本不同。如何查明我的显卡和驱动程序支持哪个版本的 DisplayPort？
我正在使用 x230（来自lspci -vv）
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 3rd Gen Core processor Graphics Controller
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 29
Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 6000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
答案1
从https://www.intel.com/content/www/us/en/support/articles/000023781/graphics-drivers.html:
对于第二代和第三代智能英特尔® 酷睿™ 处理器，支持的最大分辨率为：
- DisplayPort 1.1 = 2560x1600 @ 60 Hz
- HDMI 1.4 = 1920x1200（60 赫兹）
- DVI（单链路）= 1920x1200 @ 60 Hz
- VGA = 2048x1536（75 赫兹）
所以，它看起来像是 DisplayPort 1.1。