如何解决 [drm:radeon_init [radeon]] *错误* radeon 模块中没有 UMS 支持！在 CentOS 7 中？

Question

我看到我的笔记本电脑在系统更新后重新启动，并且有一个错误提及引起了我的注意。我发出了a # dmesg | grep radeon，结果是：

[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.10.0-327.10.1.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=en_US.UTF-8 radeon.modeset=0 rd.driver.blacklist=radeon
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-327.10.1.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=en_US.UTF-8 radeon.modeset=0 rd.driver.blacklist=radeon
[    3.837187] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon module!

我知道 UMS 已被弃用，而且我真的不需要这台笔记本电脑上非常强大的视频性能，但如果有更好的字体渲染那就太好了。

# lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Chelsea LP [Radeon HD 7730M]
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
08:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)

怎么解决呢？

Answer 1

我遇到了类似的问题，就我而言，原因是nomodesetGRUB2 传递的内核参数。我刚刚将其从 GRUB2 配置中删除，从那时起一切都运行良好。我想在你的情况下，通过类比，问题出 radeon.modeset=0 rd.driver.blacklist=radeon 在内核命令行的末尾。根据您对 GRUB 配置的感觉如何，您可以尝试手动修复它或使用 GRUB 定制器（我选择了第二个选项）。找到内核命令行并将其更改为
BOOT_IMAGE=/vmlinuz-3.10.0-327.10.1.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=en_US.UTF-8 radeon.modeset=0 rd.driver.blacklist=radeon
或
BOOT_IMAGE=/vmlinuz-3.10.0-327.10.1.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet LANG=en_US.UTF-8 radeon.modeset=1
完全删除“radeon.modeset=0 rd.driver.blacklist=radeon`部分。

Answer 2

更新，我解决了这个问题，我从 /boot/grub2 文件夹中的文件 grub2 中删除了 nomodeset，重新启动后通知消失，并且在显示设置中有一个用于提取第二个显示器的选项