4

I have recently installed Ubuntu 14.04 in my Lenovo Z51-70. It has both integrated Intel HD5500 graphics and AMD Radeon graphics card. But when I run the command "lshw -c video", its showing only Intel graphics. How can I switch to AMD graphics?

EDIT

Output of lspci -k | grep -EA2 'VGA|Display' is

00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
    Subsystem: Lenovo Device 3824
Kernel driver in use: i915
--
04:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XTX [Radeon HD 8890M / R9 M275X/M375X] (rev 81)
    Subsystem: Lenovo Radeon R9 M375
    Kernel driver in use: fglrx_pci
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    Please edit your question and add output of lspci -k | grep -EA2 'VGA|Display' terminal command. – Pilot6 Sep 11 '15 at 13:59
  • @Pilot6 I have editted the question to include the info you have asked. – Anoop SS Sep 15 '15 at 5:59
  • You can see AMD adapter. – Pilot6 Sep 15 '15 at 7:19
  • @Anoop, You are contradicting yourself. You say it's showing only Intel, but the listing you provide shows both ... – user23573 Sep 16 '15 at 20:32
  • @BogdanWilli yes. when I run lshw -c video, it showed intel graphics card. Anyways using below answer I was able to switch to Radeon and difference is visible. – Anoop SS Sep 17 '15 at 6:16
7

First install the latest fglrx driver if it is not installed.

sudo apt-get install fglrx-updates

and reboot.

You can switch adapters in Catalyst Control Center or in terminal

sudo aticonfig --px-dgpu

switches to AMD

sudo aticonfig --px-igpu

switches to Intel

aticonfig --pxl

shows status.

  • 1
    this answer helped me a lot. i upvote 10 times if i could. thanks. – yfklon Jan 5 '16 at 6:56

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