How to install the open-source "radeon" driver

Question

I "Accidentally" upgraded to 16.04 from 15.10 as it would have lost support anyway in July, and now FGLRX is nowhere to be found and only one of my monitors work.

Currently screenfetch is displaying my GPU like this:

GPU: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)

It is a Sapphire R270 and should be supported by the new radeon driver. I have tried to edit the xorg.conf file but it did nothing:

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "radeon"
EndSection

The file didnt even exist to begin with so I made a new one, but as I said it did nohting.

I have searched further and found a 10-amdgpu.conf file in

/usr/share/X11/xorg.conf.d

but I am too scared to edit there anything, since I am afraid to render my system unuseable.

duh, I know that but how do I use the open-source radeon driver ? — zython, Jun 11 '16 at 17:38
Possible duplicate of How to install Radeon Open Source Driver? — AlwaysTalkingAboutMyDog, Jun 11 '16 at 17:38
Refrain from "duh"ing other people in chat. We're here to help, but we won't if you are demeaning to others. — AlwaysTalkingAboutMyDog, Jun 11 '16 at 17:39
Okay, then edit your question saying you went through those steps and couldn't fix the issue. For all I know, you didn't try it. — AlwaysTalkingAboutMyDog, Jun 11 '16 at 17:40
@PhillipMoxley I actually didnt have to do myself anything to solve the issue, a couple of reboot fixed the reboot, if I tried something and it didnt work, I rolled everything back to the previous state — zython, Oct 06 '16 at 17:07

Pilot6 · Accepted Answer · 2016-06-11T18:37:55.213

5

There is no need to install the open source drivers. They are already installed by default.

You can check which kernel module is used by running

lspci -k | grep -EA2 'VGA|3D'

in terminal. It will show something like this

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV620/M82 [Mobility Radeon HD 3450/3470]
    Subsystem: ASUSTeK Computer Inc. Device 19d3
    Kernel driver in use: radeon

GPU: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits) looks correct.

edited Jun 11 '16 at 18:37

answered Jun 11 '16 at 18:23

Pilot6

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so could be the reason that I cant use multiple monitors and everything feels so slow ? – zython Jun 11 '16 at 18:25
This is another question why the system works slow. – Pilot6 Jun 11 '16 at 18:26
Maybe you have hyprid graphics, etc. – Pilot6 Jun 11 '16 at 18:27
its a r270 in combination with a fx6300, doesnt look like a hybrid to me – zython Jun 11 '16 at 18:31
I suggest asking a new question. Describe what is the problem and post there the output of lspci -k | grep -EA2 'VGA|3D|Display'. This question has been answered and it does not help the actual issue. – Pilot6 Jun 11 '16 at 18:37
problem fixed itself, no idea why (doing backups atm just in case) but it spits out driver in use: radeon – zython Jun 11 '16 at 19:45

How to install the open-source "radeon" driver

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