76 lines
2.7 KiB
Markdown
76 lines
2.7 KiB
Markdown
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---
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{
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title: "Xorg 红蓝两色通道异常 默认分辨率和色深设置",
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description: "Xorg显示颜色异常（如红色显蓝），因色深设置错误，将8bit改为16bit后修复。需在配置中指定amdgpu驱动并设DefaultDepth为16，原modesetting驱动不支持16bit下1920x1080分辨率。调整配置后问题解决。",
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draft: false,
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type: "article",
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created_at: "2024-07-15T02:35:00+08:00",
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published_at: "2024-07-15T02:45:00+08:00",
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updated_at: [ "2024-07-15T02:45:00+08:00"],
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category: '个人',
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tags: [ "Linux" ],
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tech_stack: [ "Linux" ],
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tech_stack_percent: [ 1 ],
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tech_stack_icon_names: [ "simple-icons:linux" ],
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tech_stack_theme_colors: [ "#263238" ],
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}
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---
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!!!warning Legacy Article 过时的文章
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此文章从旧博客迁移而来，编写时技术水平有限，仅供参考
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!!!
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现象：红色显示蓝色，蓝色显示黄色
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原因：Xorg色深设置错误，从8bit提升至16bit后显示正确
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相关conf：
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```
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Section "Device"
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Identifier "AMD"
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Driver "amdgpu"
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EndSection
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Section "Screen"
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Identifier "Default Screen"
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Device "amdgpu"
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Monitor "Default Monitor"
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DefaultDepth 16
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SubSection "Display"
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Depth 16
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Modes "1920x1080"
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EndSubSection
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EndSection
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### Valid values for rotation are "normal", "left", "right"
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Section "Monitor"
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Identifier "Default Monitor"
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# Option "Rotate" "normal"
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# 1920x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 172.80 MHz
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Modeline "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
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EndSection
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```
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正点原子RK3568的默认配置中，Device使用的驱动是modesetting，该驱动在16bit色深下不能提升分辨率至1920x1080
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你可以通过执行 `sudo X :1 -configure` （:1 可以是其它非0数字，不要是已激活的屏幕就行）
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```
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X.Org X Server 1.21.1.7
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X Protocol Version 11, Revision 0
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Current Operating System: Linux atompi-ca1 5.10.160 #1 SMP Tue Jan 30 11:01:02 CST 2024 aarch64
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Kernel command line: earlycon=uart8250,mmio32,0xfe660000 root=/dev/mmcblk0p3 earlyprintk console=ttyFIQ0 rootwait rw
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xorg-server 2:21.1.7-3+deb12u7 (https://www.debian.org/support)
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Current version of pixman: 0.42.2
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Before reporting problems, check http://wiki.x.org
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to make sure that you have the latest version.
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Markers: (--) probed, (**) from config file, (==) default setting,
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(++) from command line, (!!) notice, (II) informational,
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(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
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(==) Log file: "/var/log/Xorg.1.log", Time: Sun Jul 14 18:42:15 2024
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List of video drivers:
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amdgpu
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ati
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nouveau
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radeon
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modesetting
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fbdev
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vesa
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No devices to configure. Configuration failed.
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(EE) Server terminated with error (2). Closing log file.
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```
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