[ubuntu] 修改Grub2分辨率

最新推荐文章于 2025-06-20 00:20:24 发布

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最新推荐文章于 2025-06-20 00:20:24 发布

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原文链接：http://www.cnblogs.com/youngfq/archive/2011/05/01/2034050.html

本文介绍了一种解决Ubuntu系统中GRUB2启动时分辨率过低的方法。通过安装v86d和hwinfo软件，获取显卡支持的分辨率，并通过修改GRUB配置文件，设置合适的分辨率参数，最终解决了启动时分辨率过低的问题。

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今天心血来潮把grub卸载了，装了grub2 ，结果ubuntu开机的时候分辨率低得一塌糊涂，以前就知道这个问题，反正对GRUB2不感冒，今天既然装了GRUB2，就解决一下问题吧，纯粹是因为显卡驱动引起的，但不装显卡驱动，又看不了高清，还是解决GRUB2 算了。

先装个软件
sudo apt-get install v86d hwinfo</CODE< p>

然后查看你显卡支持的分辨率，要是知道自己的显卡分辨率，可以省去这一步选择你自己需要的分辨率，我个人选择1360*768 sudo hwinfo --framebuffer

> hal.1: read hal dataprocess 2229: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file dbus-errors.c line 280. This is normally a bug in some application using the D-Bus library. libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files 02: None 00.0: 11001 VESA Framebuffer [Created at bios.464] Unique ID: rdCR.+YwMoQWyyMD Hardware Class: framebuffer Model: "NVIDIA GT216 Board - 0695a2b0" Vendor: "NVIDIA Corporation" Device: "GT216 Board - 0695a2b0" SubVendor: "NVIDIA" SubDevice: Revision: "Chip Rev" Memory Size: 14 MB Memory Range: 0xf1000000-0xf1dfffff (rw) Mode 0x0300: 640x400 (+640), 8 bits Mode 0x0301: 640x480 (+640), 8 bits Mode 0x0303: 800x600 (+800), 8 bits Mode 0x0305: 1024x768 (+1024), 8 bits Mode 0x0307: 1280x1024 (+1280), 8 bits Mode 0x030e: 320x200 (+640), 16 bits Mode 0x030f: 320x200 (+1280), 24 bits Mode 0x0311: 640x480 (+1280), 16 bits Mode 0x0312: 640x480 (+2560), 24 bits Mode 0x0314: 800x600 (+1600), 16 bits Mode 0x0315: 800x600 (+3200), 24 bits Mode 0x0317: 1024x768 (+2048), 16 bits Mode 0x0318: 1024x768 (+4096), 24 bits Mode 0x031a: 1280x1024 (+2560), 16 bits Mode 0x031b: 1280x1024 (+5120), 24 bits Mode 0x0330: 320x200 (+320), 8 bits Mode 0x0331: 320x400 (+320), 8 bits Mode 0x0332: 320x400 (+640), 16 bits Mode 0x0333: 320x400 (+1280), 24 bits Mode 0x0334: 320x240 (+320), 8 bits Mode 0x0335: 320x240 (+640), 16 bits Mode 0x0336: 320x240 (+1280), 24 bits Mode 0x033d: 640x400 (+1280), 16 bits Mode 0x033e: 640x400 (+2560), 24 bits Mode 0x0345: 1600x1200 (+1600), 8 bits Mode 0x0346: 1600x1200 (+3200), 16 bits Mode 0x034a: 1600x1200 (+6400), 24 bits Mode 0x034b: 1360x768 (+1360), 8 bits Mode 0x034c: 1360x768 (+2720), 16 bits Mode 0x034d: 1360x768 (+5440), 24 bits Mode 0x0360: 1280x800 (+1280), 8 bits Mode 0x0361: 1280x800 (+5120), 24 bits Mode 0x0371: 1360x768 (+5440), 24 bits Config Status: cfg=new, avail=yes, need=no, active=unknown

修改/etc/default/grub文件，使用uvesafb的framebuffer来启动

sudo gedit /etc/default/grub

把 GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" 改成 GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1360x768-24,mtrr=3,scroll=ywrap"

把 #GRUB_GFXMODE=640×480 改成 GRUB_GFXMODE=1360x768 注意，不要#号

改/etc/initramfs-tools/modules文件 sudo gedit /etc/initramfs-tools/modules

添加这一行到末尾 uvesafb mode_option=1360x768-24 mtrr=3 scroll=ywrap

运行下面的命令，启用framebuffer echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash

然后update 一下，大功告成 sudo update-grub2 sudo update-initramfs -u

转载于:https://www.cnblogs.com/youngfq/archive/2011/05/01/2034050.html