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Centos 7内核加载自定义监控EDID文件不起作用

tag-icon • tag-icon fedora linux-kernel xorg xrandr edid
Centos 7内核加载自定义监控EDID文件不起作用

我想使用 Linux 内核加载自定义 EDID 文件。我添加drm_kms_helper.edid_firmware=edid/myedid.bin到GRUB_CMDLINE_LINUX了/etc/defauls/grub.然后我更新了 grub.cfg 并将grub2-mkconfig > /boot/grub2/grub.cfgEDID 文件添加到 initrd 并dracut --force --include /usr/lib/firmware/edid /usr/lib/firmware/edid 检查了lsinitrd文件是否存在

   lsinitrd | grep edid
    Arguments: --force --include '/usr/lib/firmware/edid' '/usr/lib/firmware/edid'
    drwxrwx---   2 root     root            0 Oct  6 01:25 usr/lib/firmware/edid

然后我重新启动计算机，xrandr 提供旧信息，而不是我在 EDID 文件中定义的信息。

DP1 disconnected (normal left inverted right x axis y axis)
DP2 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00* 
   800x600       60.32    56.25  
   848x480       60.00  
   640x480       59.94  
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)

这就是 dmesg | grep drm 打印出来（我也尝试将 drm_kms_firmware 更改为 drm，但这仅删除了日志中的警告。我使用的是 kernelversion 3.10，因此 drm_kms_helper 应该是正确的）：

[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.10.0-1160.76.1.el7.x86_64 root=UUID=XXXXX ro drm_kms_helper.edid_firmware=edid/myedid.bin rhgb quiet mem=2G

[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-1160.76.1.el7.x86_64 root=UUID=2df6baad-7c38-488e-8acd-14a461e72a99 ro drm_kms_helper.edid_firmware=edid/myedid.bin rhgb quiet

[    2.652804] [drm] drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware intead.

[    3.115696] [drm] Replacing VGA console driver

[    3.117295] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).

[    3.117299] [drm] Driver supports precise vblank timestamp query.

[    3.179723] [drm] Initialized i915 1.6.0 20181204 for 0000:00:02.0 on minor 0

[    3.198830] fbcon: inteldrmfb (fb0) is primary device

[    3.261252] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device

这是 /etc/X11/xorg.conf.d 中的我的 intel.conf

# /etc/X11/xorg.conf.d/01-intel.conf
Section "Device"

  Identifier "intel(0)"
  Driver "intel"

  Option "TearFree" "true"
  Option "DRI" "2"
  Option "ReprobeOutputs" "true"
  Option "HotPlug" "false"
EndSection

和我的 Xorg 日志 (grep drm)

[    96.089] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-1160.76.1.el7.x86_64 root=UUID=XXXXX ro drm_kms_helper.edid_firmware=edid/myedid.bin rhgb quiet
[    96.098] (II) xfree86: Adding drm device (/dev/dri/card0)
[    96.098] (II) Platform probe for /sys/devices/pci0000:00/0000:00:02.0/drm/card0

内核版本：3.10.0-1160.76.1.el7.x86_64

在内核配置中进行了设置

CONFIG_DRM_LOAD_EDID_FIRMWARE=y

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