Windows Diary

How To Manage Linux ATI Kernel Module?

Posted on by Brian Magallanes

 

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    Last week, some users encountered a known bug in the ATI Linux kernel module. This problem can arise for several reasons. Let’s discuss this now.

     

     

    This short film focuses on the open source Radeon driver that supports most AMD ATI processors (formerly GPUs).

    Select The Correct Driver

    Depending on the current card, find the correct drivers in Xorg # AMD. This page contains instructions during ATI.

    If you are unsure, try this open source golf driver first, it will satisfy most needs and generally will not cause problems. Take a look at the function of this matrix to see what is supported besides a ring decoder for converting marketing players (like Radeon HD4330) to full chip names (like R700).

    Installation

    Install the Mesa package, which typically provides DRI drivers for 3D acceleration.

    • To support 32-bit application forms, also install the lib32-mesa package from the Multilib repository.
    • For a newer DDX driver (which offers 2D acceleration in Install xorg) such as the xf86-video-ati package.

    Support for accelerated video decoding is provided by the mesa-vdpau and lib32-mesa-vdpau packages.

    Download

    linux ati kernel module

    ModShould the Radeon core be loaded automatically when the system boots. Protected

    • don’t use nomodeset or vga = as kernel options yet, while radeon requires KMS.
    • Also make sure no one has disabled Radeon by installing a kernel or module blacklist.

    Activate First KMS

    Xorg Configuration

    Xorg will constantly load the driver automatically, and this tool will use your monitor’s EDID to set any native resolution. The configuration is only required for the backlight for the driver.

    If you need a manual system, create /etc/X11/xorg.conf.d/20-radeon.conf and add the following:

     section "Device"    "Radeon" Radeon Pilot IDEndSection

    In this section, you will often activate functions and optimize vehicle settings.

    Optimizing Performance

    Enable Video Acceleration

    Graphic Tools

    • WattmanGTK is a GTK3 user interface written in Python 3 that allows you to view, track, and overclock the CPU graphics to determineRadeon performance, slave speed, and power status. It contains AMDGPU – the kernel driver.
    https://github.com/BoukeHaarsma23/WattmanGTK || wattman-gtk-git AUR

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  • 2. Launch the program and click "Scan"
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    • Note. A kernel parameter ( amdgpu.ppfeaturemask ) must be defined to enable Overdrive AMd technology on GNU / Linux. What is required to use WattmanGTK.

    • Radeon Profile is a Qt application used to display information about a Radeon card.
    https://github.com/marazmista/radeon-profile || radeon-profile-git AUR

    Driver Options

    acceleration architecture; Glamor is available whenever 2D acceleration is implemented via OpenGL and is the default setting for R600 (Radeon HD2000 series) and newer graphics cards. Older cards use EXA.

     Option "AccelMethod" "Glamor"

    DRI3 is enabled by default since xf86-video-ati 7.8.0. For older drivers that use DRI2 for latency reasons, upgrade to DRI3 with the following option:

     Option "DRI" "3"

    TearFree is a tear prevention alternative that prevents the garden page scrolling mechanism from breaking:

     wariant "TearFree" "on"

    ColorTiling and ColorTiling2D should be activated in late fall. Mosaic mode can provide significant performance by taking advantage of 3D applications. If DRM is disabled, it is probably too old if the current display configuration never supports it. KMS ColorTiling2D is only added to R600 (Radeon Series) hd2000 and newer chips:

     Option "ColorTiling" "on"Option "ColorTiling2D" "activated"

    If Glamor is used as an acceleration architecture, you can actually enable the ShadowPrimary option, which has a suitable buffer called “Shadow Primary” for fast CPU access to pixel data and buffers. partial scan for each individual display controller (CRTC). This potentially improves the performance of some 2D workloads, hopefully at the expense of other workloads (such as 3D video). Note that enabling this setting currently disables the “EnablePageFlip” setting:

     Option "ShadowPrimary" "on"

    EXAVSync is really only available when using EXA. It can be activated to preventBursting if the engine stalls until the game display controller passes the target area over some of the tokens:

     Option "EXAVSync" "yes"
     section "Device"ID "Radeon"Pilot "Radeon"Option "AccelMethod" "Glamor"        Option "DRI" "3"        "TearFree" option "activated"        Option "ColorTiling" "activated"        Option "ColorTiling2D" "activated"EndSection

    Hint: driconf AUR is a tool that can be used to change various parameters: vsync, anisotropic filtering, texture compression, etc. This also allows a low impact option “that some people want (like Google Earth).

    Kernel Parameters

    Determining the gartsize size, if it just isn’t automatically recognized, can be done using radeon add.gartsize = 32 as a kernel parameter.

    PCIe 2.0 deactivation

    Starting with kernel 3.6, PCI Express 2.0 is enabled by default in Radeon.

    On some motherboards, it may be unstable. Is it possible to disable it by adding radeon.pcie_gen2 = 0 as a big poison parameter Ah?

    Head-up Display With Gallium

    The radeon driver supports header display (HUD), which can display transparent graphics and text on top of applications that make games look like, for example. They can display values ​​such as the current frame rate, or no doubt the CPU utilization for each CPU core, or the average of all. The HUD is controlled by the usual GALLIUM_HUD variable and can, among other things, pass the following parameter list:

    • “fps” – allocates the current frames per second.
    • “cpu” – the display shows the average processor load.
    • “cpu0” – display the processor load for the first processor core.
    • “cpu0 + cpu1” – The primary display shows the CPU utilization for the first two CPU cores.
    • “draw calls” – Indicates how many times each object’s material has undoubtedly been drawn to the screen.
    • “requested-VRAM” – Indicates the amount of VRAM used on a specific GPU.
    • “render in pixels” – Indicates how many pixels can be rendered.

    To see a complete list of parameters, as well as someFor tips on using GALLIUM_HUD, you can also pass our own “help” parameter to a simple application like glxgears and display the appropriate lethal output:

     # GALLIUM_HUD = "help" glxgears

    For more information, see this mailing list article or blog post.

    Hybridgrafik / AMD Dynamic Switchable Graphics

    This is a technology that has been used in previous laptops with dual GPUs, 1 more power efficient (usually an Intel integrated card) and in particular more powerful and power hungry (usually Radeon also Nvidia). There are two ways to make it work:

    • If you do not need to run GPU-intensive applications, you can disable the discrete card (see the Ubuntu Wiki): echo OFF> / sys / kernel / debug / vgaswitcheroo / change .
    • PRIME: This is the recommended method for using hybrid graphics on Linux, but still requires manual user intervention.

    Energy Saving

    Note. Monitored power management applies to all chips that are sodaSome vbios (R1xx and newer) have corresponding power state tables. “dpm” is only configurable on newer chips and R6xx chips.

    In radeon, the power saving when escaping is disabled for the entire pilot, and if desired, it should be activated manually.

    1. dpm (enabled by default since kernel.13 version 3)
    2. dynpm
    3. Profile

    Dynamic Power Management

    Starting with kernel 3.13, DPM is enabled by default for many AMD Radeon devices. If you want to disable them, add the radeon.dpm = 0 option to our custom kernel options.

    Tip. DPM runs on R6xx GPUs, but the kernel does not support it by default (only for R7xx and above). By setting the kernel parameter radeon.dpm = 1 , dpm will be enabled.

    Unlike dynpm, the dpm method uses the GPU to dynamically process parts.
    linux ati kernel module

     

     

    Speed up your computer's performance now with this simple download.

     

     

     

     

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