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如何在所有四块K520卡上启用显示器？
我需要3840 x 2400.它只显示连接的1个显示器，最大值为2560x1600。 以上来自于谷歌翻译 以下为原文 How can I enable monitors on all four of the K520 cards? I need 3840 x 2400. It only shows 1 monitor connected which maxes out at 2560x1600. 
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我相信GRID K520的分辨率为2560 x 1600。
现在这是一个旧模型。 为了推4K，你需要一个不同的卡。 如果您正在寻找可以支持多个用户的GRID K2，则它支持Passthrough中的4K。 如果您可以向我们提供更多信息，我们可能会建议其他选项。 问候 本 以上来自于谷歌翻译 以下为原文 I believe the GRID K520 is rated at 2560 x 1600 resolution. It's an old model now. In order to push 4K, you'll need a different Card. The GRID K2 supports 4K in Passthrough if you are looking for one that can support multiple users. If you could give us more information, we may be able to suggest additional options. Regards Ben |
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为了清楚起见，我的系统中有四个GRID K520因此我应该得到四倍2560x1600，它只能识别第一张卡上的一个显示器。
我需要的是每张卡识别一个显示器，我将是金色的。 以上来自于谷歌翻译 以下为原文 To be clear, I have four GRID K520 in my system therefore I should get four times 2560x1600 yet, it will only recognize one monitor on the first card. All I need is it it to recognize one monitor per card and I will be golden. |
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我认为只有第一张卡上的第一台显示器是由没有实际输出的卡上的nvidia-bios / drivers启用的（无头）。
如果您需要更多监视器，则必须为“连接”监视器提供有效的EDID。 EDID数据通常由某种类型的远程显示解决方案设置，但大多数协议在一张卡上支持更多监视器而不支持多卡。 您可以使用以下代码测试此问题并设置EDID（来自“Windows上的无显示多GPU”.pdf）。 您需要VisualStudio C编译器（免费的VS Express 2013 for Desktop即可）和免费的NVAPI。 ＃包括 ＃包括 #include“NvAPI / NvAPI.h” // 0 unsigned char testEDID [128] = {0x00,0xFF，0xFF，0xFF，0xFF，0xFF，0xFF，0x00,0x10,0xAC，0x7A，0xA0,0x4C，0x50,0x32,0x32,0x0D，0x17,0x01,0x03,0x80， 0x34,0x20,0x78,0xEA，0xEE，0x95,0xA3,0x54,0x4C，0x99,0x26,0x0F，0x50,0x54,0xA1,0x08,0x00,0x81,0x40,0x81,0x80,0xA9,0x40,0xB3,0x00， 0xD1,0xC0,0x01,0x01,0x01,0x01,0x01,0x01,0x28,0x3C,0x80,0xA0,0x70,0xB0,0x23,0x40,0x30,0x20,0x36,0x00,0x06,0x44,0x21,0x00,0x00， 0x1A，0x00,0x00,0x00,0xFF，0x00,0x30,0x46,0x46,0x58,0x44,0x33,0x33,0x54,0x32,0x32,0x50,0x4C,0x0A,0x00,0x00,0x00,0xFC,0x00,0x44， 0x45,0x4C，0x4C，0x20,0x55,0x32,0x34,0x31,0x32,0x4D，0x0A，0x20,0x00,0x00,0x00,0xFD，0x00,0x32,0x3D，0x1E，0x53,0x11,0x00,0x0A，0x20， 0x20,0x20,0x20,0x20,0x20,0x00,0x45}; int main（int argc，char * argv []）{ NvAPI_Status ret = NVAPI_OK; NvU32 nDisplayIds = 0; NvU32 physicalGpuCount = 0; NV_GPU_DISPLAYIDS pDisplayIds [NVAPI_MAX_DISPLAYS]; NvPhysicalGpuHandle hPhysicalGpu [NVAPI_MAX_PHYSICAL_GPUS]; NV_EDID edid; // 1 ret = NvAPI_Initialize（）; if（ret！= NVAPI_OK）返回-1; //枚举物理GPU句柄并获取DisplayID ret = NvAPI_EnumPhysicalGPUs（hPhysicalGpu，＆amp; physicalGpuCount）; if（ret！= NVAPI_OK）返回-1; //查询显示ID的总数 printf（“physicals：％d n”，physicalGpuCount）; ret = NvAPI_GPU_GetAllDisplayIds（hPhysicalGpu [0]，NULL，＆amp; nDisplayIds）; if（ret！= NVAPI_OK）返回-1; //将所有显示ID检索到pDisplayID中 printf（“在physical [0]上显示：％d n”，nDisplayIds）; pDisplayIds [0] .version = NV_GPU_DISPLAYIDS_VER; ret = NvAPI_GPU_GetAllDisplayIds（hPhysicalGpu [0]，pDisplayIds，＆amp; nDisplayIds）; if（ret！= NVAPI_OK）返回-1; // 2 memset（＆amp; edid，0，sizeof（edid））; edid.version = NV_EDID_VER; memcpy（edid.EDID_Data，testEDID，sizeof（testEDID））; edid.sizeofEDID = sizeof（testEDID）; //设置EDID（在重新启动之间保持不变） //edid.sizeofEDID = 0; //删除EDID printf（“物理[0]显示[1] n”的NvAPI_GPU_SetEDID）; ret = NvAPI_GPU_SetEDID（hPhysicalGpu [0]，pDisplayIds [1] .displayId，＆amp; edid）; if（ret！= NVAPI_OK）{printf（“NvAPI_GPU_SetEDID failed =％d n”，ret）; 返回-1; } printf（“NvAPI_GPU_SetEDID success n”）; // 3 ret = NvAPI_GPU_GetConnectedDisplayIds（hPhysicalGpu [0]，NULL，＆nDisplayIds，NV_GPU_CONNECTED_IDS_FLAG_FAKE）; if（ret！= NVAPI_OK）返回-1; //从连接的显示中检索显示ID ret = NvAPI_GPU_GetConnectedDisplayIds（hPhysicalGpu [0]，pDisplayIds，＆amp; nDisplayIds，NV_GPU_CONNECTED_IDS_FLAG_FAKE）; if（ret！= NVAPI_OK）返回-1; printf（“物理[0]连接的监视器：％d n”，nDisplayIds）; 返回0; } // 0 - 样本EDID适用于DELL U2412M监视器1920x1200 // 1 - 计算物理gpu卡和一个物理[0]的“所有显示”（监视器）（你应该得到1,2,3的NvAPI_GPU_GetAllDisplayIds（）） // 2 - 在物理[0] +显示[1]上设置EDID（对于1 + 0,2 + 0,3 + 0，你应该NvAPI_GPU_SetEDID（）） - 重新启动之间的设置是持久的 - edid.sizeofEDID = 0删除EDID（例如断开连接监视器） // 3 - 获取“连接显示”的计数 快乐的黑客攻击，M.C> 以上来自于谷歌翻译 以下为原文 I think that only the first monitor on the first card is enabled by nvidia-bios/drivers on cards without real outputs (headless). If you need more monitors you must supply valid EDID to "connect" monitor. The EDID data is usually set by some type of remote display solution but most protocols support more monitors on one card and not multi cards. You can test this problem and setup EDID with following code (from "Displayless Multi-GPU on Windows.pdf"). You need VisualStudio C compiler (free VS Express 2013 for Desktop is OK) and free NVAPI. #include #include #include "NvAPI/NvAPI.h" // 0 unsigned char testEDID[128] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x10, 0xAC, 0x7A, 0xA0, 0x4C, 0x50, 0x32, 0x32, 0x0D, 0x17, 0x01, 0x03, 0x80, 0x34, 0x20, 0x78, 0xEA, 0xEE, 0x95, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54, 0xA1, 0x08, 0x00, 0x81, 0x40, 0x81, 0x80, 0xA9, 0x40, 0xB3, 0x00, 0xD1, 0xC0, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x28, 0x3C, 0x80, 0xA0, 0x70, 0xB0, 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1A, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x30, 0x46, 0x46, 0x58, 0x44, 0x33, 0x33, 0x54, 0x32, 0x32, 0x50, 0x4C, 0x0A, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x44, 0x45, 0x4C, 0x4C, 0x20, 0x55, 0x32, 0x34, 0x31, 0x32, 0x4D, 0x0A, 0x20, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x32, 0x3D, 0x1E, 0x53, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x45 }; int main(int argc, char* argv[]) { NvAPI_Status ret = NVAPI_OK; NvU32 nDisplayIds = 0; NvU32 physicalGpuCount = 0; NV_GPU_DISPLAYIDS pDisplayIds[NVAPI_MAX_DISPLAYS]; NvPhysicalGpuHandle hPhysicalGpu[NVAPI_MAX_PHYSICAL_GPUS]; NV_EDID edid; // 1 ret = NvAPI_Initialize(); if (ret != NVAPI_OK) return -1; // Enumerate the physical GPU handle and get the DisplayID ret = NvAPI_EnumPhysicalGPUs(hPhysicalGpu, &physicalGpuCount); if (ret != NVAPI_OK) return -1; // Query the total number of Display IDs printf("physicals: %dn", physicalGpuCount); ret = NvAPI_GPU_GetAllDisplayIds(hPhysicalGpu[0], NULL, &nDisplayIds); if (ret != NVAPI_OK) return -1; // Retrieve all of the Display IDs into pDisplayIDs printf("displays on physical[0]: %dn", nDisplayIds); pDisplayIds[0].version = NV_GPU_DISPLAYIDS_VER; ret = NvAPI_GPU_GetAllDisplayIds(hPhysicalGpu[0], pDisplayIds, &nDisplayIds); if (ret != NVAPI_OK) return -1; // 2 memset(&edid, 0, sizeof(edid)); edid.version = NV_EDID_VER; memcpy(edid.EDID_Data, testEDID, sizeof(testEDID)); edid.sizeofEDID = sizeof(testEDID); // to set EDID (it is persistent between reboots) //edid.sizeofEDID = 0; // to remove EDID printf("NvAPI_GPU_SetEDID for physical[0] display[1]n"); ret = NvAPI_GPU_SetEDID(hPhysicalGpu[0], pDisplayIds[1].displayId, &edid); if (ret != NVAPI_OK) { printf("NvAPI_GPU_SetEDID failed = %dn", ret); return -1; } printf("NvAPI_GPU_SetEDID successn"); // 3 ret = NvAPI_GPU_GetConnectedDisplayIds(hPhysicalGpu[0], NULL, &nDisplayIds, NV_GPU_CONNECTED_IDS_FLAG_FAKE); if (ret != NVAPI_OK) return -1; // Retrieve Display IDs from connected displays ret = NvAPI_GPU_GetConnectedDisplayIds(hPhysicalGpu[0], pDisplayIds, &nDisplayIds, NV_GPU_CONNECTED_IDS_FLAG_FAKE); if (ret != NVAPI_OK) return -1; printf("connected monitors on physical[0]: %dn", nDisplayIds); return 0; } // 0 - sample EDID is for DELL U2412M monitor 1920x1200 // 1 - get count about physical gpu card and "all displays" (monitors) of one physical[0] (you should get NvAPI_GPU_GetAllDisplayIds() for 1,2,3) // 2 - setup EDID on physical[0]+display[1] (you should NvAPI_GPU_SetEDID() for 1+0,2+0,3+0) - setup is persistent between reboots - edid.sizeofEDID=0 remove EDID (eg. disconnect monitor) // 3 - get count of "connected displays" Happy hacking, M.C> |
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