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2014-02-07
2014-09-15
  • Manolakos Ioannis

    Hi all and thanks Thorsten for your work. I have Crossfire enabled and I cant control the clocks of the second gpu. I am running Debian Wheezy and have an 4870x2 GPU (Sapphire).Driver version is the one from Wheezy-backports.(13.1-legacy I guess) While for the first gpu everything works as it should for the second I cant commit the clocks though it loads the .ovdr file. Here is the output of some commands.

    rasty@debianfx:~$ fglrxinfo
    display: :0 screen: 0
    OpenGL vendor string: Advanced Micro Devices, Inc.
    OpenGL renderer string: ATI Radeon HD 4870 X2
    OpenGL version string: 3.3.11672 Compatibility Profile Context

    Should the above contain 2 sections or not?

    aticonfig --lsa
    * 0. 03:00.0 ATI Radeon HD 4870 X2
    1. 04:00.0 ATI Radeon HD 4870 X2

    aticonfig --lscs
    Candidate Combination:
    Master: 3:0:0
    Slave: 4:0:0
    CrossFire is enabled on current device
    CrossFire Diagnostics:
    CrossFire can work with P2P write through peer aperture
    Dongle Capabilities: support PASSTHROUGH |INTERLINK_SW_AFR | INTERLINK_AUTO_AFR | INTERLINK_BLACKING | INTERLINK_SUPERAA
    Candidate Combination:
    Master: 3:0:0
    Slave: 4:0:0
    CrossFire is enabled on current device
    CrossFire Diagnostics:
    CrossFire can work with P2P write through peer aperture
    Dongle Capabilities: support PASSTHROUGH |INTERLINK_SW_AFR | INTERLINK_AUTO_AFR | INTERLINK_BLACKING | INTERLINK_SUPERAA

    aticonfig --lsch
    CrossFire chain for adapter 0, status: enabled
    0. 03:00.0 ATI Radeon HD 4870 X2
    1. 04:00.0 ATI Radeon HD 4870 X2

    aticonfig --odgc --adapter=all

    Adapter 0 - ATI Radeon HD 4870 X2
    Core (MHz) Memory (MHz)
    Current Clocks : 600 650
    Current Peak : 600 650
    Configurable Peak Range : [507-800] [500-1000]
    GPU load : 3%

    Adapter 1 - ATI Radeon HD 4870 X2
    Core (MHz) Memory (MHz)
    Current Clocks : 750 900
    Current Peak : 750 900
    Configurable Peak Range : [507-800] [500-1000]
    GPU load : 0%

    As you can see I cant set the second gpu clock/mem and it always stays at max performance...Also i cant use the pplib-cmd 'get activity' for the second gpu. For the first it reads.

    Current Activity is Core Clock: 600MHZ
    Memory Clock: 650MHZ
    VDDC: 1100
    Activity: 2 percent
    Performance Level: 0
    Bus Speed: 5000
    Bus Lanes: 16
    Maximum Bus Lanes: 16

    But if I try DISPLAY=:0.1 or DISPLAY=:1 nothing shows up :/ . What am I doing wrong?
    Could someone post pls a working xorg.conf file with a similar setup? That is dual-gpu with 1 physical monitor attached. Is this drivers problem or what? And if so any suggestions? Thanks in advance for any reply.

     
  • T. Metaxas

    T. Metaxas - 2014-09-15

    The answer is further down in this forum.
    (Η απάντηση είναι μέσα σε αυτό το forum).

     

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