224 lines
31 KiB
HTML
224 lines
31 KiB
HTML
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="27.0">
|
||
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="内核无法成功启动 显示模块无法申请到足够大的内存作为 framebuffer。 显示模块申请的 buffer 来源于 CMA 机制预留的内存，如果 CMA 预留内存不足，可能会导致内核启动失败。 CMA 预留内存设置可参考 配置 CMA 设备文件 /dev/fb0 缺失 显示模块驱动初始化失败。可通过 debugfs 查看 component 框架下显示引擎，显示接口，panel 的 bind ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.relation" content="../../../topics/sdk/display/display_user_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/display/display_boot_logo.html"/><meta name="DC.relation" content="../../../topics/sdk/display/display_faq_screen.html"/><meta name="DC.relation" content="../../../topics/sdk/display/display_faq_screen.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-01-15"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="display_common_issues"/><meta name="DC.language" content="zh-CN"/><title>常见问题</title><!-- Generated with build number 2024112209. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="display_common_issues-d4445e5190"/><meta name="wh-source-relpath" content="topics/sdk/display/display_faqs.dita"/><meta name="wh-out-relpath" content="topics/sdk/display/display_faqs.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2024112209"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2024112209"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250123154945"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2024112209"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250123154945"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2024112209"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2024112209"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2024112209"/></head>
|
||
|
||
<body id="display_common_issues" class="wh_topic_page frmBody">
|
||
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
||
跳转到主要内容
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<header class="navbar navbar-default wh_header">
|
||
<div class="container-fluid">
|
||
<div class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
||
<div class="wh_logo_and_publication_title_container">
|
||
<div class="wh_logo_and_publication_title">
|
||
|
||
<a href="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.png" alt=" Linux SDK 使用指南 SDK 指南文件 "/></a>
|
||
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"> <span class="ph mainbooktitle">Linux SDK 使用指南</span> <span class="ph booktitlealt">SDK 指南文件</span> </span></a></div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
||
|
||
|
||
|
||
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<div class="container-fluid" id="wh_topic_container">
|
||
<div class="row">
|
||
|
||
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
||
|
||
<div data-tooltip-position="bottom" class=" wh_breadcrumb "><ol class="d-print-none"><li><span class="home"><a href="../../../index.html"><span>主页</span></a></span></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li><li><div class="topicref" data-id="concept_mcc_32s_nbc"><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/display/display_user_guide.html">Display 使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="display_common_issues"><div class="title"><a href="../../../topics/sdk/display/display_faqs.html">常见问题</a></div></div></li></ol></div>
|
||
|
||
|
||
|
||
<div class="wh_right_tools">
|
||
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
||
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
||
<div class=" wh_navigation_links "><span id="topic_navigation_links" class="navheader">
|
||
|
||
<span class="navprev"><a class="- topic/link link" href="../../../topics/sdk/display/display_boot_logo.html" title="Boot Logo" aria-label="上一主题: Boot Logo" rel="prev"></a></span>
|
||
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/display/display_faq_screen.html" title="调屏常见问题" aria-label="下一主题: 调屏常见问题" rel="next"></a></span> </span></div>
|
||
|
||
|
||
|
||
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
||
|
||
<button type="button" id="wh_toc_button" class="custom-toggler navbar-toggler collapsed wh_toggle_button navbar-light" aria-expanded="false" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc">
|
||
<span class="navbar-toggler-icon"></span>
|
||
</button>
|
||
</div>
|
||
|
||
</nav>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="wh_content_area">
|
||
<div class="row">
|
||
|
||
<nav id="wh_publication_toc" class="col-lg-3 col-md-3 col-sm-12 d-md-block d-none d-print-none" aria-label="Table of Contents Container">
|
||
<div id="wh_publication_toc_content">
|
||
|
||
<div class=" wh_publication_toc " data-tooltip-position="right"><span class="expand-button-action-labels"><span id="button-expand-action" role="button" aria-label="Expand"></span><span id="button-collapse-action" role="button" aria-label="Collapse"></span><span id="button-pending-action" role="button" aria-label="Pending"></span></span><ul role="tree" aria-label="Table of Contents"><li role="treeitem"><div data-tocid="revinfo_linux-d4445e1079" class="topicref" data-id="revinfo_linux" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/revinfo/revinfo_linux.html" id="revinfo_linux-d4445e1079-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1096" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1096-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d4445e1096-link">SDK 编译</a><div class="wh-tooltip"><p class="shortdesc">介绍不同编译环境下 SDK 的详细编译流程。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="tocId-d4445e1240" class="topicref" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action tocId-d4445e1240-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/lb_usage_commands.html" id="tocId-d4445e1240-link">使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d4445e1360" class="topicref" data-id="concept_rcx_czh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_rcx_czh_pzb-d4445e1360-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d4445e1360-link">应用场景</a><div class="wh-tooltip"><p class="shortdesc">描述了 SDK 在不同应用场景中的配置和使用，包括系统更新、OTA、安全方案等。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1678" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1678-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d4445e1678-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">触摸屏、显示器、WIFI 模块、按键</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1964" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1964-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d4445e1964-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">在硬件上电后快速初始化系统，为操作系统的启动准备好必要的硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d4445e2153" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d4445e2153-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d4445e2153-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="uBoot-d4445e2170" class="topicref" data-id="uBoot" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action uBoot-d4445e2170-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/boot/uboot-module.html" id="uBoot-d4445e2170-link">U-Boot</a><div class="wh-tooltip"><p class="shortdesc">启动支持的基本功能以及运行时的基本硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_mtx_tk3_pzb-d4445e3028" class="topicref" data-id="concept_mtx_tk3_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mtx_tk3_pzb-d4445e3028-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/linux/chapter_linux.html" id="concept_mtx_tk3_pzb-d4445e3028-link">Linux</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-system-d4445e3198" class="topicref" data-id="chapter-system" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-system-d4445e3198-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-system.html" id="chapter-system-d4445e3198-link">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-memory-d4445e4054" class="topicref" data-id="chapter-memory" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-memory-d4445e4054-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html" id="chapter-memory-d4445e4054-link">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、SPI NAND、SPI NOR 等存储模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="concept_mcc_32s_nbc-d4445e4438" class="topicref" data-id="concept_mcc_32s_nbc" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action concept_mcc_32s_nbc-d4445e4438-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d4445e4438-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="ge-d4445e4455" class="topicref" data-id="ge" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action ge-d4445e4455-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/ge/ge_user_guide.html" id="ge-d4445e4455-link">GE 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="ve-d4445e4637" class="topicref" data-id="ve" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action ve-d4445e4637-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/ve/ve-user-guide.html" id="ve-d4445e4637-link">VE 使用指南</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d4445e4777" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d4445e4777-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_user_guide.html" id="id-d4445e4777-link">Display 使用指南</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="display_configuration-d4445e4791" class="topicref" data-id="display_configuration" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action display_configuration-d4445e4791-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_config.html" id="display_configuration-d4445e4791-link">Display 配置</a><div class="wh-tooltip"><p class="shortdesc">显示模块的参数配置，包括 menuconfig 配置 和 dts 配置。</p></div></div></div></li><li role="treeitem"><div data-tocid="display_debug_guide-d4445e4965" class="topicref" data-id="display_debug_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_debug.html" id="display_debug_guide-d4445e4965-link">调试指南</a></div></div></li><li role="treeitem"><div data-tocid="display_test_guide-d4445e4979" class="topicref" data-id="display_test_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_test_guide.html" id="display_test_guide-d4445e4979-link">测试指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="display_design_intro-d4445e4993" class="topicref" data-id="display_design_intro" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action display_design_intro-d4445e4993-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display-design_intro.html" id="display_design_intro-d4445e4993-link">设计说明</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="display_screen_configuration-d4445e5106" class="topicref" data-id="display_screen_configuration" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action display_screen_configuration-d4445e5106-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_panel_port.html" id="display_screen_configuration-d4445e5106-link">屏适配指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_xpy_32b_ybc-d4445e5134" class="topicref" data-id="concept_xpy_32b_ybc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_xpy_32b_ybc-d4445e5134-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_fb_rotation.html" id="concept_xpy_32b_ybc-d4445e5134-link">屏幕旋转</a></div></div></li><li role="treeitem"><div data-tocid="display_change_color-d4445e5162" class="topicref" data-id="display_change_color" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_color_property.html" id="display_change_color-d4445e5162-link">色彩调整</a></div></div></li><li role="treeitem"><div data-tocid="display_boot_logo-d4445e5176" class="topicref" data-id="display_boot_logo" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_boot_logo.html" id="display_boot_logo-d4445e5176-link">Boot Logo</a></div></div></li><li role="treeitem" aria-expanded="true" class="active"><div data-tocid="display_common_issues-d4445e5190" class="topicref" data-id="display_common_issues" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action display_common_issues-d4445e5190-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_faqs.html" id="display_common_issues-d4445e5190-link">常见问题</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="concept_smb_cl3_pzb-d4445e5204" class="topicref" data-id="concept_smb_cl3_pzb" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_faq_screen.html" id="concept_smb_cl3_pzb-d4445e5204-link">调屏常见问题</a></div></div></li></ul></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_h4d_fwt_tzb-d4445e5218" class="topicref" data-id="concept_h4d_fwt_tzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_h4d_fwt_tzb-d4445e5218-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/dvp/dvp_user_guide.html" id="concept_h4d_fwt_tzb-d4445e5218-link">DVP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="mpp-d4445e5358" class="topicref" data-id="mpp" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action mpp-d4445e5358-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mpp/mpp_user_guide.html" id="mpp-d4445e5358-link">MPP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="mpp_0-d4445e5498" class="topicref" data-id="mpp_0" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action mpp_0-d4445e5498-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mpp/mpp_player_user_guide.html" id="mpp_0-d4445e5498-link">MPP 播放器使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="gstreamer-d4445e5582" class="topicref" data-id="gstreamer" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action gstreamer-d4445e5582-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/gstreamer/gstreamer-user-guide.html" id="gstreamer-d4445e5582-link">Gstreamer 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="i2s-d4445e5680" class="topicref" data-id="i2s" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action i2s-d4445e5680-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/i2s/i2s_user_guide.html" id="i2s-d4445e5680-link">I2S 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="audio_codec_user_guide-d4445e5806" class="topicref" data-id="audio_codec_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action audio_codec_user_guide-d4445e5806-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/audio_codec/audio-codec-user-guide.html" id="audio_codec_user_guide-d4445e5806-link">Audio Codec 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d4445e5947" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d4445e5947-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d4445e5947-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d4445e7944" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d4445e7944-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d4445e7944-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
|
||
<div class="col-lg-7 col-md-9 col-sm-12" id="wh_topic_body">
|
||
<button id="wh_close_publication_toc_button" class="close-toc-button d-none" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
|
||
<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" 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" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/display/display_faqs.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">常见问题</h1>
|
||
|
||
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
||
Read time: 1 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<section class="- topic/section section" id="display_common_issues__section_ic4_rkg_d1c" data-ofbid="display_common_issues__section_ic4_rkg_d1c"><h2 class="- topic/title title sectiontitle">内核无法成功启动</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d75753e38__20250123155205">显示模块无法申请到足够大的内存作为 framebuffer。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e41__20250123155205">显示模块申请的 buffer 来源于 CMA 机制预留的内存，如果 CMA 预留内存不足，可能会导致内核启动失败。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e44__20250123155205">CMA 预留内存设置可参考 <a class="- topic/xref xref" href="display_menuconfig.html#display_menuconfig_configuration__ol_i2q_pvf_d1c">配置 CMA</a></p>
|
||
</section>
|
||
<section class="- topic/section section" id="display_common_issues__section_jc4_rkg_d1c" data-ofbid="display_common_issues__section_jc4_rkg_d1c"><h2 class="- topic/title title sectiontitle">设备文件 <span class="+ topic/ph sw-d/filepath ph filepath">/dev/fb0</span> 缺失</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d75753e59__20250123155205">显示模块驱动初始化失败。可通过 debugfs 查看 component 框架下显示引擎，显示接口，panel 的 bind 情况。参考 <a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="display_debug.html#display_debug_guide__section_arq_jyf_d1c">查看组件注册信息</a>。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e66__20250123155205">bind 失败的通常存在如下问题：</p>
|
||
<ul class="- topic/ul ul" id="display_common_issues__ul_kc4_rkg_d1c" data-ofbid="display_common_issues__ul_kc4_rkg_d1c">
|
||
<li class="- topic/li li" data-ofbid="d75753e71__20250123155205">
|
||
<p class="- topic/p p" data-ofbid="d75753e73__20250123155205">panel 驱动选择出错。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e76__20250123155205">参考 <a class="- topic/xref xref" href="display_menuconfig.html#display_menuconfig_configuration__li_enable_panel_drivers">Panel 配置</a>
|
||
选择正确的 panel 驱动</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d75753e84__20250123155205">
|
||
<p class="- topic/p p" data-ofbid="d75753e86__20250123155205">DTS 中 port 属性配置不符合预期。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e89__20250123155205">RGB/LVDS/DSI 三个显示接口必须三选一，确保 dts 有且仅有一条正确的数据通路。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d75753e93__20250123155205">
|
||
<p class="- topic/p p" data-ofbid="d75753e95__20250123155205">DTS 中缺少某些必须参数。</p>
|
||
<p class="- topic/p p" data-ofbid="d75753e98__20250123155205">DTS 配置不正确可能会导致整个 bind 过程中断，具体配置信息，详见 <a class="- topic/xref xref" href="display_parameter_panel_dsi.html">Panel_DSI</a>。</p>
|
||
</li>
|
||
</ul>
|
||
</section>
|
||
</div>
|
||
</article></main></div>
|
||
|
||
<div class=" wh_child_links d-print-none "><nav aria-label="Child Links" role="navigation" class="- topic/related-links related-links"><ul class="ullinks"><li class="- topic/link link ulchildlink"><strong><a href="../../../topics/sdk/display/display_faq_screen.html">调屏常见问题</a></strong></li></ul></nav></div>
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<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="#display_common_issues__section_ic4_rkg_d1c" data-tocid="display_common_issues__section_ic4_rkg_d1c">内核无法成功启动</a></div></li><li class="section-item"><div class="section-title"><a href="#display_common_issues__section_jc4_rkg_d1c" data-tocid="display_common_issues__section_jc4_rkg_d1c">设备文件 <span class="+ topic/ph sw-d/filepath ph filepath">/dev/fb0</span> 缺失</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-23
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<button id="go2top" class="d-print-none" title="返回顶部">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</button>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |