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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_faq.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">常见问题</h1><div class="date inPage">29 Oct 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body body"><section class="- topic/section section" id="id__section_fmh_rry_2dc" data-ofbid="id__section_fmh_rry_2dc"><h2 class="- topic/title title sectiontitle">屏幕显示画面卡顿</h2>
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<ul class="- topic/ul ul simple" id="id__ul_gjl_kry_2dc" data-ofbid="id__ul_gjl_kry_2dc"><li class="- topic/li li" data-ofbid="d106103e23__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e25__20250121171540">现象</p>
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<p class="- topic/p p" data-ofbid="d106103e28__20250121171540">屏幕显示的画面有明显卡顿情况。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e31__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e33__20250121171540">原因分析</p>
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<p class="- topic/p p" data-ofbid="d106103e36__20250121171540">可能是 OS 的调度不够及时导致，导致 MDI 的帧采集不连贯。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e39__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e41__20250121171540">解决方法</p>
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<ol class="- topic/ol ol arabic simple" id="id__ol_jjl_kry_2dc" data-ofbid="id__ol_jjl_kry_2dc"><li class="- topic/li li" data-ofbid="d106103e45__20250121171540">检查操作系统调度。<p class="- topic/p p" data-ofbid="d106103e47__20250121171540">确保操作系统（OS）能够及时调度任务。如果 OS 的调度不够及时，可能会导致
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MDI（多媒体接口）的帧采集不连贯，从而出现卡顿现象。</p></li><li class="- topic/li li" data-ofbid="d106103e49__20250121171540">调整 MDI 驱动中的调试信息输出。如果 MDI 驱动中的调试信息输出过多，会占用大量的系统资源，影响帧率。<ul class="- topic/ul ul" id="id__ul_xyb_tty_2dc" data-ofbid="id__ul_xyb_tty_2dc"><li class="- topic/li li" data-ofbid="d106103e52__20250121171540">关闭或降低调试信息的输出频率。如果 MDI 驱动中的调试信息打开了，每一帧数据处理都有输出
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log，会影响帧率，需要关掉。</li><li class="- topic/li li" data-ofbid="d106103e54__20250121171540">提升 log 级别，减少不必要的日志记录。详见 <a class="- topic/xref xref" href="mdi_debug.html">调试指南</a></li></ul></li><li class="- topic/li li" data-ofbid="d106103e59__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e61__20250121171540">尝试增加 buffer 数量，保证 Buffer 队列中有充裕的空闲 buf。</p>
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</li></ol>
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</li></ul>
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</section><section class="- topic/section section" id="id__section_gmh_rry_2dc" data-ofbid="id__section_gmh_rry_2dc"><h2 class="- topic/title title sectiontitle">出现
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GE
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Timeout
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报错</h2>
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<div class="- topic/div div">
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<ul class="- topic/ul ul simple" id="id__ul_kjl_kry_2dc" data-ofbid="id__ul_kjl_kry_2dc"><li class="- topic/li li" data-ofbid="d106103e74__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e76__20250121171540">现象</p>
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<p class="- topic/p p" data-ofbid="d106103e79__20250121171540">MDI->GE->MDI 场景，在采集几帧画面后就出现 GE Timeout，然后卡死</p>
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</li><li class="- topic/li li" data-ofbid="d106103e82__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e84__20250121171540">原因分析</p>
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<p class="- topic/p p" data-ofbid="d106103e87__20250121171540">由于高帧率和高分辨率的数据量过大，导致 GE 无法及时读取到数据，从而引发 Timeout 报错，并且因为 GE
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卡顿会导致整个数据流无法持续正常流转。 </p>
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</li><li class="- topic/li li" data-ofbid="d106103e90__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e92__20250121171540">解决方法</p>
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<ol class="- topic/ol ol" id="id__ol_usc_d5y_2dc" data-ofbid="id__ol_usc_d5y_2dc"><li class="- topic/li li" data-ofbid="d106103e96__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e98__20250121171540">检查并调整 Host 端数据源的帧率，将其降低到一个合适的值。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e101__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e103__20250121171540">检查并调整分辨率设置，使其低于当前配置。</p>
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</li></ol>
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</li></ul>
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</div>
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</section><section class="- topic/section section" id="id__section_mv4_sry_2dc" data-ofbid="id__section_mv4_sry_2dc"><h2 class="- topic/title title sectiontitle"> 画面出现规律的分割</h2>
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<div class="- topic/div div">
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<ul class="- topic/ul ul simple" id="id__ul_njl_kry_2dc" data-ofbid="id__ul_njl_kry_2dc"><li class="- topic/li li" data-ofbid="d106103e117__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e119__20250121171540">现象</p>
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<p class="- topic/p p" data-ofbid="d106103e122__20250121171540">假如原图是一棵树，但最终显示出来是两棵树，或者一颗半，而且颜色失真。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e125__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e127__20250121171540">原因分析</p>
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<p class="- topic/p p" data-ofbid="d106103e130__20250121171540">一般是 RGB565、RGB888 格式的误用导致。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e133__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e135__20250121171540">解决方法</p>
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<p class="- topic/p p" data-ofbid="d106103e138__20250121171540">排查 Host 端发送的 0x3A 命令的数据内容是否符合实际的数据格式。如果不符合，则调整 0x3A 参数的数据。0x3A 数据定义详见
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<a class="- topic/xref xref" href="mdi_design.html">设计说明</a> 中的自定义 DBI 命令设计。</p>
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<ol class="- topic/ol ol arabic simple" id="id__ol_qjl_kry_2dc" data-ofbid="id__ol_qjl_kry_2dc"><li class="- topic/li li" data-ofbid="d106103e146__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e148__20250121171540">调整 DBI 和 DPI 的数据格式定义。</p>
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</li><li class="- topic/li li" data-ofbid="d106103e151__20250121171540">
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<p class="- topic/p p" data-ofbid="d106103e153__20250121171540">确认 SoC 的 MDI、DE 控制器参数配置，是否和 0x3A 命令保持一致。</p>
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</li></ol>
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</li></ul>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#id__section_fmh_rry_2dc" data-tocid="id__section_fmh_rry_2dc">屏幕显示画面卡顿</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_gmh_rry_2dc" data-tocid="id__section_gmh_rry_2dc">出现
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GE
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Timeout
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报错</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_mv4_sry_2dc" data-tocid="id__section_mv4_sry_2dc"> 画面出现规律的分割</a></div></li></ul></div>
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