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radeon.dpm=1 在 13.04 w/4850 上无效

tag-icon • tag-icon 13.04 radeon fan fancontrol
radeon.dpm=1 在 13.04 w/4850 上无效

我正在尝试使用开源 Radeon 驱动器（我认为这与 Gallium 相同，但如果我搞错了，请纠正我）的 13.04。这是在 4850 卡上，因此需要传统的专有驱动程序，这些驱动程序与 13.04 不兼容（我进行了 xserver 降级以在 12.04 上使用它们，但不想在 13.04 上走那条路）。

驱动程序可以正常工作，只是我无法更改风扇/电源设置。我尝试将 radeon.dpm=1 添加到 grub，但在启动时系统日志中出现此错误（并且系统显示的图像质量很差（2d？）：

Aug 14 20:26:23 xxxx-xxxx kernel: [    5.115756] radeon: `1' invalid for parameter `dpm'

以下是一些命令的信息，可能有助于识别我是否做错了什么。任何想法都将不胜感激。

lshw -c video
  *-display               
       description: VGA compatible controller
       product: RV770 [Radeon HD 4850]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:46 memory:d0000000-dfffffff memory:fe8e0000-fe8effff ioport:b000(size=256) memory:fe8c0000-fe8dffff




 modinfo radeon
filename:       /lib/modules/3.8.0-19-generic/kernel/drivers/gpu/drm/radeon/radeon.ko
license:        GPL and additional rights
description:    ATI Radeon
author:         Gareth Hughes, Keith Whitwell, others.
<bunch of firmware listing>
radeon/RV710_pfp.bin
firmware:       radeon/RV730_me.bin
firmware:       radeon/RV730_pfp.bin
firmware:       radeon/RV770_me.bin
firmware:       radeon/RV770_pfp.bin
firmware:       radeon/RS780_me.bin
firmware:       radeon/RS780_pfp.bin
firmware:       radeon/RV670_me.bin
firmware:       radeon/RV670_pfp.bin
<bunch of firmware listing>
srcversion:     9F592710CB27B4A29EE5630
<bunch of alias pci: listings>
depends:        drm,drm_kms_helper,ttm,i2c-algo-bit
intree:         Y
vermagic:       3.8.0-19-generic SMP mod_unload modversions
parm:           no_wb:Disable AGP writeback for scratch registers (int)
parm:           modeset:Disable/Enable modesetting (int)
parm:           dynclks:Disable/Enable dynamic clocks (int)
parm:           r4xx_atom:Enable ATOMBIOS modesetting for R4xx (int)
parm:           vramlimit:Restrict VRAM for testing (int)
parm:           agpmode:AGP Mode (-1 == PCI) (int)
parm:           gartsize:Size of PCIE/IGP gart to setup in megabytes (32, 64, etc) (int)
parm:           benchmark:Run benchmark (int)
parm:           test:Run tests (int)
parm:           connector_table:Force connector table (int)
parm:           tv:TV enable (0 = disable) (int)
parm:           audio:Audio enable (1 = enable) (int)
parm:           disp_priority:Display Priority (0 = auto, 1 = normal, 2 = high) (int)
parm:           hw_i2c:hw i2c engine enable (0 = disable) (int)
parm:           pcie_gen2:PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable) (int)
parm:           msi:MSI support (1 = enable, 0 = disable, -1 = auto) (int)
parm:           lockup_timeout:GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable) (int)

答案1

为什么它不起作用很简单：你使用的内核（3.8）还不支持 dpm - 使用内核 3.11 / Ubuntu 13.10

如果您使用 3.11 版的 Linux 发行版，它很可能包含 Mesa (9.2) 的更新版本，该更新版本也为 Radeon 卡提供 UVD（硬件视频加速）。

检查在 grub 中设置 radeon.dpm=1 后一切是否正常：

modinfo radeon
vermagic:       3.11.0-4-generic SMP mod_unload modversions 
parm:           dpm:DPM support (1 = enable, 0 = disable, -1 = auto) (int)


dmesg | grep dpm
[drm] radeon: dpm initialized

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