Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Almost everything which is remotely using my GPU lags horribly, so I decided to dive into the system to check.

chloridecull@SonicRainboom:~$ glxinfo | grep renderer
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.2, 128 bits)

A quick excerpt from the RadeonDriver page on the wiki tells me:

To see your OpenGL information, you can run the commands below. Make sure your OpenGL renderer string does not say "software rasterizer" or "llvmpipe" because that would mean you have no 3D hardware acceleration:

The output from lshw is below, showing that I have a 7970 using the radeon driver which should happily accept whatever is thrown at it.

chloridecull@SonicRainboom:~$ sudo lshw -c video
       description: VGA compatible controller
       product: Tahiti XT [Radeon HD 7970]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:46 memory:d0000000-dfffffff memory:fbc80000-fbcbffff ioport:ee00(size=256) memory:fbc00000-fbc1ffff

dpkg reports that the xserver-xorg-video-radeon is at version 1:7.1.0-0ubuntu2. I had fglrx installed before this, but I purged it by following the guide on the VideoDriverDetection page.

How do I enable 3D hardware processing?

share|improve this question
+1 I'm getting the same result from a VM despite having hardware rendering passed on from the guest. – ashes999 Sep 3 '14 at 16:17

Try booting the stick from another usb port and/or another computer to test if the usb port or stick is bad.

Load the boot image on another usb stick and see if that works.

share|improve this answer
This is already installed from the Minimal (netinst) iso. – Chloride Cull Aug 5 '13 at 14:09
This means that (almost) all packages are installed from apt-get, including the X server and drivers. – Chloride Cull Aug 5 '13 at 17:38

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.