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Amd Hd 3850 Agp

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  • Amd Hd 3850 Agp

    Hi all,

    As you may know there are 2 fresh AGP cards from Sapphire and PowerColor.

    I's very hard to find an official test of these cards even for Windows. The only results I found are from someone who buy one last week [1].

    After looking at the performance improvement on Windows I only want to know if someone has one of these cards on Linux.

    Thanks


    [1] http://www.clubic.com/forum/hardware...768-page1.html

  • #2
    They released AGP versions of the HD38xx series????
    Darn! If only I'd waited instead of purchasing my HD2600XT AGP ..
    I'd still not have a working Linux driver though

    Comment


    • #3
      I have the 3850 AGP and so far I have not had much luck with it in Ubuntu 8.04 alpha 6, about the only thing that works is the VESA driver and not that well. Hopefully support for this will come soon! If anyone can get it working with something other than VESA, let me know!

      Comment


      • #4
        Hello!

        Is there any Plan from Amd to release Linux driver for this Card?

        Comment


        • #5
          i doubt amd will ever support this.

          Comment


          • #6
            Originally posted by Redeeman View Post
            i doubt amd will ever support this.
            I guess i'm upgrading, It works well on the dark side. besides it's gonna work with the radeonhd driver (no 3d). It will probably also work with ubuntu 8 given time. Mind you that cards such as x1950 did work. in pervious Ubuntus you did have to disable (false) PCI-E detection. The main problem is that these cards (as always are basicly PCI-E cards

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            • #7
              Progress?

              Has the recent progress with the AMD/ATI driver in any way improved this situation?

              Can you run a 3850 agp, with 3D support under linux at all?

              Cheers.
              D.

              Comment


              • #8
                As an update to my earlier post there,
                I have now been running my 2600 XT AGP just fine under Linux with 3D support since the release of Catalyst 8-5 (so mid-May) and my discovery of the mem=xxxxMB kernel boot parameter (it runs Doom3, Homeworld, GoogleEarth and other OpenGL stuff).
                Recently I purchased an upgrade to a 3850 AGP.
                It ran just fine for about 5 hours,
                with no changes to the driver whatsoever, all the way until some of it's memory chips got hot enough to expose manufacturing flaws and the card died.
                (It's being repaired / replaced under warranty)
                So I don't see why the 3850 AGP wouldn't be able to run just fine under Linux with the fglrx driver + the 3D support that brings?

                The main trick for me in getting the fglrx driver to work was to tell the kernel to limit physical memory.
                At first I tried with mem=3000MB (my system has 4 GB of RAM) but now setting the boot parameter to mem=4096MB actually works fine too.
                I suppose that the driver, when loading, had a hard time mapping the card's 512MB or the AGP aperture onto physical ram and by setting that parameter, I may not have limited the kernel at all but merely changed the algorithm by which it assigns memory blocks upon boot-time.
                It did the trick and that is the important thing!
                Last edited by Swoopy; 07-15-2008, 02:00 AM.

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                • #9
                  usually the option is

                  mem=valueM

                  not MB.

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                  • #10
                    Originally posted by Kano View Post
                    usually the option is

                    mem=valueM

                    not MB.
                    Thanks for the correction.
                    I rechecked my /boot/grub/menu.lst and indeed
                    Code:
                    mem=4096M
                    is what I have inserted there on the
                    Code:
                    kernel          /boot/vmlinuz-2.6.etc.etc.etc.
                    line.

                    Comment


                    • #11
                      Thanks for the update. Did you see notable performance gains moving to the 3850?

                      A shame about the chip failure.

                      Cheers.
                      D.

                      Originally posted by Swoopy View Post
                      As an update to my earlier post there,
                      I have now been running my 2600 XT AGP just fine under Linux with 3D support since the release of Catalyst 8-5 (so mid-May) and my discovery of the mem=xxxxMB kernel boot parameter (it runs Doom3, Homeworld, GoogleEarth and other OpenGL stuff).
                      Recently I purchased an upgrade to a 3850 AGP.

                      Comment


                      • #12
                        Originally posted by tenzero View Post
                        Thanks for the update. Did you see notable performance gains moving to the 3850?

                        A shame about the chip failure.

                        Cheers.
                        D.
                        All the measurements I was able to do in the short time were glxgears and fgl_glxgears .... (stand-alone & running them simultaneously)
                        Based upon that, I would guesstimate the 3850 AGP to have been about 1.5x to 2.5x faster than my 2600XT AGP (both with 512 MB GDDR3 memory on-board).
                        Side-note: my 2600XT AGP is the H.I.S. IceQ Turbo overclocked edition (so overclocked in hardware, e.g. even in Linux, rather than via the Windows driver)
                        so performance gains coming from a "normal" 2600XT or Pro may be slightly bigger.

                        I use mostly Windows XP for gaming and therefore graphical benchmarking (The few Linux OpenGL apps/games I mentioned are what I can use / play when my PC is booted into Linux doing other stuff in the background which is the common situation most of the time)
                        Unfortunately Windows Service Pack 3 broke my XP install (no, I do not have the AMD + Intel power management driver issue, it's much worse)
                        so I couldn't benchmark for want of having to re-install XP.

                        All in good time, assuming I get a working 3850 AGP back rather than my money ....

                        Comment


                        • #13
                          Originally posted by dokers View Post
                          I have the 3850 AGP and so far I have not had much luck with it in Ubuntu 8.04 alpha 6, about the only thing that works is the VESA driver and not that well. Hopefully support for this will come soon! If anyone can get it working with something other than VESA, let me know!
                          I had to jump through hoops to get my agp x1950 working in linux. Maybe the 3850 is the same?

                          Comment


                          • #14
                            Originally posted by alexforcefive View Post
                            I had to jump through hoops to get my agp x1950 working in linux. Maybe the 3850 is the same?
                            UPDATE, The 8.5 Catalyst works fine for me on the AGP 3850. But anything newer than that doesn't, when I run fglrxinfo I get:

                            fglrxinfo: ../../src/xcb_io.c:350: _XReply: Assertion `!dpy->xcb->reply_data' failed.
                            Aborted

                            I've spent a lot of time searching, tried removing dkms, all references to old kernels and old fglrx and still no luck. If anyone has a good suggestion, let me know, but so far everyting I've tried is useless.

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                            • #15
                              I just got my 3850 card (AGP) working with the guide from http://wiki.cchtml.com/index.php/Ubu...allation_Guide and the 8.5 driver. Even a skilled monkey could do this... Now if only I had an Island like in the good ol days. anyway in the past and with "Envy" I newer got it to work... 3d but no accel I always use PPracer as real world test software.

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