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[Solved] Need help with Radeon and Direct Rendering Manager
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ratcheer
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PostPosted: Tue May 06, 2014 11:50 pm    Post subject: [Solved] Need help with Radeon and Direct Rendering Manager Reply with quote

I am trying to configure my x86_64 system to use Xorg with my Radeon HD6770 and the open source radeon driver. I have installed the firmware and successfully set all the other required settings in the radeon configuration instructions, except they tell me to select "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)" and, under that, "ATI Radeon" and "Enable modesetting on radeon by default
". When I go to the submenu, Direct Rendering Manager is prechosen with a "-" and I cannot change it.

I must have messed up something, but I have no idea what. I keep going back through all the other settings and everything appears to be correct. Can anyone help me with this?

Tim


Last edited by ratcheer on Sat May 10, 2014 1:28 am; edited 1 time in total
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Logicien
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PostPosted: Wed May 07, 2014 12:37 am    Post subject: Reply with quote

If your video card is not on the PCI Express port, you must choose in the kernel (*) the Amd Agp driver in /dev/agpart section. If it is on the PCI Express port, you can skip that section and leave it unselected.

Put the section Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) in the kernel and all things of the submenu (*).

You have in the Graphics support section the Ati Radeon option. Put it in the kernel (*). Enable userspace modesetting on radeon (DEPRACATED) should not be enabled. It work for me with my Radeon HD 7520G.
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Hu
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PostPosted: Wed May 07, 2014 1:41 am    Post subject: Reply with quote

If nconfig refuses to let you select an entry, you probably have an unsatisfied dependency. Open the help for the locked item to see the dependency list.
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ratcheer
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PostPosted: Wed May 07, 2014 3:32 pm    Post subject: Reply with quote

Thanks, Hu. I did open the help for the DRM entry, but I couldn't figure out what it was telling me.

@Logicien, yes I'm afraid I had too many things selected in the wrong areas. Thank you.

I think what I'm going to do is a complete rebuild of Gentoo, from scratch. I hope my experiences this time through will help me do a better job, next time. I had so many "fits and starts", the whole thing is probably a mess.

Tim
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Hu
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PostPosted: Thu May 08, 2014 2:20 am    Post subject: Reply with quote

Starting over can be helpful if you need to clean out a lot of cruft, but usually it's not necessary. For a kernel, it is completely unnecessary. Either you keep the .config file you used this time and modify it accordingly, in which case you did not start over for your kernel; or you discard it and configure a new one, which means you need to get all the hardware and feature choices right again.
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ratcheer
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PostPosted: Fri May 09, 2014 8:34 pm    Post subject: Reply with quote

Ok, I re-did the Gentoo installation from the beginning. I have a working base system. Now, I am trying to install and configure Xorg.

As nearly as I can tell, I have followed all instructions to the letter. I am following wiki document "Xorg/Configuration". Because I have an HD6770 card, that document sent me to document "Radeon". Everything is fine until I get to the step that says to select Device Drivers --> Graphics support --> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support). That item is still pre-selected with a "-" and I am not allowed to change it.

I have not skipped anything nor had any problems with any prior step. What am I supposed to do to select that item?

Thank you,
Tim
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ratcheer
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PostPosted: Sat May 10, 2014 1:35 am    Post subject: Reply with quote

Solved - I decided to ignore the Direct Rendering Manager setting indicated in the wiki article. I was then able to complete all the remaining tasks and get X up and running.

I think the wiki article is either incorrect or misleading. I still feel like I was trying to do what it is telling me to do, but it just is not possible. But, all's well that ends well, I suppose.

Tim
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Ant P.
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PostPosted: Sun May 11, 2014 2:01 am    Post subject: Reply with quote

Would be interested to see a screenshot of this menu with it force-disabled, I've never seen that before.
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