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  • RV770 Support Added To RadeonHD Driver

    Phoronix: RV770 Support Added To RadeonHD Driver

    The Novell developers behind the xf86-video-radeonhd driver have yet to receive their hardware samples from AMD for the Radeon HD 4850 or Radeon HD 4870, but there is already AtomBIOS-based support for these next-generation graphics processors. This open-source driver now has basic mode-setting support, but the 2D and 3D work is still to come.

    http://www.phoronix.com/vr.php?view=12583

  • #2
    Does this new driver also include support for the Radeon HD 3200 IGP?

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    • #3
      Radeonhd has had support for the HD3200 for a while now, although I don't remember if support was added before the last release. You might need more recent code from git.

      Current support is display/modesetting + shadowfb acceleration only, ie no 3d, but 3d is in the works.

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      • #4
        I thought the modesetting support for HD3200 was still incomplete (no DisplayPort support eg. for ASRock A780FullDisplayPort). Has this changed in current git?

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        • #5
          Ahh yes. Display port has not been a priority on any of the chips that support it (HD32xx, HD34xx, HD36xx, HD48xx) since there are very few displays out there, but it is on the list for implementation and having full atombios support will be a big help to getting display port running.

          So yes, this will help with display port but does not add support today.

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          • #6
            Good to hear that it is being worked on.

            Using DisplayPort seems to be the only way to connect two digital displays to 780G chipsets, as DVI+HDMI combination is not supported (at least by the boards on the market today).

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            • #7
              Interesting... and odd. It's almost impossible to buy a discrete care that does *not* have 2 DVI ports, wonder why mobo's are so different ? Maybe the only way to get the 2nd digital output is to give up 4 PCIE lanes, will check...

              EDIT - according to their specs the Gigabyte GA-MA78GM and Asus M3A78-EMH each have 1 DVI + 1 HDMI port. Always hard to be sure without actually holding one in your hands and all the pics on the websites seem to be "lifestyle" shots showing how exciting your life will be if you buy this motherboard

              http://www.compusa.com/include/AddCa...1&imgcounter=5
              Last edited by bridgman; 07-10-2008, 09:50 PM.

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              • #8
                According to its specifications, the ASUS M3A78-EMH only supports this:
                Originally posted by http://www.asus.com/products.aspx?modelmenu=2&model=2064&l1=3&l2=149&l 3=639&l4=0
                Dual VGA output support:
                RGB & DVI/HDMI
                And the user manual for the Gigabyte GA-MA78GM-S2H says
                Originally posted by http://america.giga-byte.com/FileList/Manual/motherboard_manual_ga-ma78gm-s2h_e.pdf
                Dual
                Display
                Combination Supported or Not
                DVI-D + D-Sub Yes
                DVI-D + HDMI No
                HDMI + D-Sub Yes
                It looks to me like this is either a hardware limitation of the 780G, or the manufacturers were too cheap to route DVI and HDMI outputs to different ports on the chipset.

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                • #9
                  Yep... sounds like there's just a single set of dedicated digital outputs and you have to steal PCIE lines for the second one. That said, IIRC there's a different output block used for the muxed output and I'm pretty sure we have seen it used on at least one 780 mobo. We have definitely seen it used on 690s.

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                  • #10
                    which driver for amd/ati hd3200 (780G) chipset

                    Hi, I'm using the vesa driver for the amd/ati hd3200 (780G) chipset (Gigabyte GA-MA78G-DS3H mobo). The problem I have is extremely heavy CPU use by Xorg, whenever any action is done (move a window, open an application, watch a dvd, etc). CPU use may go beyond 100%. I don't use Compiz or any 3D stuff. I mean, I am doing just usual plain 2D work. The problem is worst in KDE 3.5 compared to Gnome.
                    Please can you explain me: is this due to lack of 2D hardware acceleration by the vesa driver? I installed the newest proprietary ATI driver (v 8.6) and the Xorg CPU use was even worst than vesa, so I reverted to vesa again. However, vesa driver does not allow me to get the full screen resolution. Am I doing something wrong or the drivers are still unfinished even at 2D? Is there any driver that fully support this chipset?

                    Thanks a lot for your help.


                    Gigabyte GA-MA78G-DS3H mobo connected to a digital Acer 22"
                    AMD AThlon X2 64 5000+
                    4G DDR2 800MHZ

                    Comment


                    • #11
                      Originally posted by Maxei View Post
                      Hi, I'm using the vesa driver for the amd/ati hd3200 (780G) chipset (Gigabyte GA-MA78G-DS3H mobo). The problem I have is extremely heavy CPU use by Xorg, whenever any action is done (move a window, open an application, watch a dvd, etc). CPU use may go beyond 100%. I don't use Compiz or any 3D stuff. I mean, I am doing just usual plain 2D work. The problem is worst in KDE 3.5 compared to Gnome.
                      Please can you explain me: is this due to lack of 2D hardware acceleration by the vesa driver?
                      The vesa driver provides no acceleration at all. You are also limited to the mode list supported by the bios. It's basically a fallback driver.

                      Comment


                      • #12
                        Originally posted by agd5f View Post
                        The vesa driver provides no acceleration at all. You are also limited to the mode list supported by the bios. It's basically a fallback driver.


                        Thanks. Do you mean that the BIOS from Gigabyte is limiting the function of the driver? Is there any settings that you recommend to modify in the bios?
                        I also have another question: Do you know if the radeonhd driver support this chipset? Actually, I am asking because of mixed information I found. If you have updated information i will appreciate it. Thanks a lot again.
                        Last edited by Maxei; 07-11-2008, 09:33 PM.

                        Comment


                        • #13
                          There are two different BIOSes on a typical PC - a "system BIOS" on the motherboard and a "video BIOS" either on the graphics card or (in the case of an integrated graphics chip) also on the motherboard. The system BIOS handles everything except graphics, while the video BIOS handles graphics.

                          Your "BIOS settings" affect the system BIOS, but the VESA driver uses the video BIOS, so typically "BIOS settings" won't make a difference here.

                          The radeonhd driver does support the 780 as long as you have a fairly recent version. Older versions did not yet have support added, and there was a post here recently mentioning that one of the outputs (display port) was not supported on any of the open drivers today; that may have been the source of your mixed information.

                          We also do not have 3d acceleration available in any of the open source drivers today, but that should chance once we are able to release the remaining 3d engine programming information for the 6xx family (we released 3d engine info for 5xx in Feb 08).

                          Comment


                          • #14
                            Originally posted by bridgman View Post
                            There are two different BIOSes on a typical PC - a "system BIOS" on the motherboard and a "video BIOS" either on the graphics card or (in the case of an integrated graphics chip) also on the motherboard. The system BIOS handles everything except graphics, while the video BIOS handles graphics.

                            Your "BIOS settings" affect the system BIOS, but the VESA driver uses the video BIOS, so typically "BIOS settings" won't make a difference here.

                            The radeonhd driver does support the 780 as long as you have a fairly recent version. Older versions did not yet have support added, and there was a post here recently mentioning that one of the outputs (display port) was not supported on any of the open drivers today; that may have been the source of your mixed information.

                            We also do not have 3d acceleration available in any of the open source drivers today, but that should chance once we are able to release the remaining 3d engine programming information for the 6xx family (we released 3d engine info for 5xx in Feb 08).
                            Great, Thanks for that info pal, I earned something today
                            I'm happy to know that the radeonhd driver supports the ati 780g chipset. I will give it a try. I don't care about 3D support at this point, but certainly I expect 3D support to be provided someday, either by the open source or proprietary drivers. Thank you.

                            Comment


                            • #15
                              3D support is provided today by the proprietary drivers. From your earlier post in this thread it looks like your initial fglrx install wasn't working properly for some reason... my guess is that you had a "DRI support disabled" message in your log file and had no acceleration as a result.

                              Let's get that fixed first. Can you pls post a log file from fglrx ?
                              Last edited by bridgman; 07-12-2008, 09:49 PM.

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