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  • Radeon 7850 and Ubuntu Precise

    Hello,

    I am very interested by the new AMD Radeon 7850 graphics card because:

    - It is silent (tired of having a vacuum noise in my pc)
    - It uses less electricity

    Well, this is not the most powerful of the market but it will be good enough to run my games on Linux (Thrine and other games of Humble Bundle)

    But before buying, I'd like to know if:

    - It is easy to install Linux / Ubuntu?
    - Stable?
    - The dual screen feature works well? (eg display TV + PC)
    - What about games under Wine (and other 3D, it works as well as in Nvidia?)
    - It is possible to use the audio through the HDMI?

    Thank you for your feedback.

  • #2
    Hello, someone could share his experiment?

    Comment


    • #3
      WIth a 7850, you'll have to use fglrx, which will probably suck badly with wine. In my experience it also kernel panics on shutdown.

      So, do yourself a favor and buy nvidia, not least because most wine developers seem to test with nvidia.

      Comment


      • #4
        Originally posted by barkas View Post
        WIth a 7850, you'll have to use fglrx, which will probably suck badly with wine. In my experience it also kernel panics on shutdown.

        So, do yourself a favor and buy nvidia, not least because most wine developers seem to test with nvidia.
        That's only because AMD needs an increased number of skilled beta testers that are able to actually figure out what caused wine to break.

        Comment


        • #5
          No, amd just needs to allow anonymous access to the beta ftp server. It is as simple as that.

          Comment


          • #6
            Just read whole thread: http://phoronix.com/forums/showthrea...eries-on-Linux

            Comment


            • #7
              I installed it yesterday and I see AMD graphic card work much better than 5 years ago on Linux, but that was not very difficult to do better...

              1) On ubuntu precise, the card is too young and the radeon free driver does not recognize it. You have to install the Catalyst AMD driver 12.6.
              2) HDMI audio with 7850 is not implemented in the precise kernel. I have to install a 3.3.7 kernel for Ubuntu and it works good!
              3) with wine: I have a lot of problem, but there is solution all over the internet because there are a lot of people wich use ATI graphic card on Linux
              4) good results with recent 3D games
              5) dual screen ok PC+TV (clone or double screen)

              I'll continue to post here my AMD 7580 experiment on Ubuntu precise

              Next step:

              - how to use HD video acceleration
              - driver stability?
              - resolve TTY console

              Comment


              • #8
                HD Video with fglrx is easy. There is a xvba backend for vaapi.

                Comment


                • #9
                  But it is implemented in VLC or Totem? How to activate it? For the moment my cpu told me I have not acceleration video playback.

                  Comment


                  • #10
                    Install xvba-va-driver, check "Input & Codecs" -> "Use GPU accelerated decoding" in VLC preferences. Run "sudo amfconfig --set-pcs-u32=MCIL,HWUVD_H264Level51Support,1" if you need High@L5.1 video support.

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                    • #11
                      Install xvba-va-driver, check "Input & Codecs" -> "Use GPU accelerated decoding" in VLC preferences. Run "sudo amfconfig --set-pcs-u32=MCIL,HWUVD_H264Level51Support,1" if you need High@L5.1 video support.
                      Thank you for your support but I'm asking me why it is not integrated with the driver by default?
                      I try to install it on ubuntu, the package name is:

                      Code:
                      $ apt-cache search xvba
                      xvba-va-driver - XvBA-based backend for VA API (AMD fglrx implementation)
                      I installed it and after reboot, my system was unstable and I had no more 3D acceleration.
                      Because the ubuntu package was compiled with another and older Catalyst version, the catalyst version of the Ubuntu official depot.
                      While I installed the last version 12.6 from the file on the official AMD site.

                      Anyway, I decided to compile my own package. For this operation to work you have to install catalyst drivers from AMD site and choose deb package installation.

                      To compile xvba-va-driver Ubuntu package from source, do:

                      Code:
                      $  apt-get build-dep xvba-va-driver
                      to install dependency to compile this package then

                      Code:
                      $ apt-get source -b xvba-va-driver
                      and finally install the package:

                      Code:
                      $ dpkg -i xvba-va-driver_0.7.8-1ubuntu3_amd64.deb
                      I don't know if it is necessary, but i saw on a forum I have to add this lines:

                      LIBVA_DRIVER_NAME=xvba
                      LIBVA_DRIVERS_PATH=/usr/lib/x86_64-linux-gnu/dri/

                      to /etc/environment file.

                      Reboot.

                      Finally I enable GPU acceleration in VLC but I didn't see a change, VLC continues to play video at 22% of my processor (intel core 2 duo 2ghz), like before the xvba-va-driver instalaltion...but I guess it is enough for 720 HD video playing.

                      Run "sudo amfconfig --set-pcs-u32=MCIL,HWUVD_H264Level51Support,1" if you need High@L5.1 video support.
                      I didn't do that, I didn't understand what it is for...and my compute doesn't find amfconfig command.

                      AMD should integrate this video driver in the aim driver installation, it's a very annoying step I'll have to reproduce at each driver update...
                      Last edited by legluondunet; 07-24-2012, 01:38 AM.

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                      • #12
                        *amdconfig*

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                        • #13
                          ;-) ok.

                          When I play full HD video 1920x1072, VLC takes 35% processor and Xorg +20%, it is bad or good?
                          Totem have worst performance with the same fully HD video: 60/70% proc, +20% Xorg

                          For the stability point, i have to verify if gnome-shell could be affected by Catalyst drivers, perrhaps a memory leak...
                          Last edited by legluondunet; 07-24-2012, 02:10 AM.

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                          • #14
                            with this xbmc https://launchpad.net/~wsnipex/+archive/xbmc-xvba HW acceleration works like charm. but only without composition. xbmc tends to freeze with composition.

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                            • #15
                              Originally posted by legluondunet View Post
                              Thank you for your support but I'm asking me why it is not integrated with the driver by default?
                              Driver provide XvBA API, not VA-API. Even for using hardware decoder of Intel GPU you need to install separate i965-va-driver package. So it' more likely common VA-API problem, but not fglrx problem. For using API like XvBA and VDPAU (in software like XBMC-XvBA and mplayer) you doesn't need to install additional packages.
                              Originally posted by legluondunet View Post
                              Finally I enable GPU acceleration in VLC but I didn't see a change
                              Did you check "vainfo" output?

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