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Any way to make switching between discrete and integrated graphics from the BIOS work with proprietary drivers?

asked 2013-01-15 12:00:03 -0500

Bucic gravatar image

updated 2013-04-29 14:26:47 -0500

What I would like to be able to do:

I would like to be able to switch between my dedicated graphics card (AMD) and integrated chip (Intel) from the BIOS, that means:

Restart → BIOS: set to integrated Intel enabled (only) → boot

or

Restart → BIOS: set to discrete AMD enabled (only) → boot

This type of primitive switching works fine when running on open source drivers. However, as soon as I install catalyst, switching from AMD to Intel from the BIOS breaks the session and the system falls back to low-graphics mode on boot-up.

What I did:

  1. fresh system, open source drivers with Intel enabled
  2. switched to AMD = no problemo!
  3. switched to Intel = no problemo!
  4. (the above repeated few times and tested for performance issues)
  5. installed proprietary AMD drivers per the link below and tested - working fine (used fglrxinfo in terminal to confirm) https://ask.fedoraproject.org/question/10924/how-to-install-updated-amd-catalyst-131-for-legacy-chipsets/
  6. switched to Intel ⇒ broken configuration, i.e. system boots to 2D/fallback mode!
  7. Tried to delete xorg.conf file as suggested here http://askubuntu.com/questions/234119/any-way-to-make-switching-between-discrete-and-integrated-graphics-from-the-bios

There are no xorg.conf* files in /etc/X11/ The /etc/X11/ directory itslef does exist of course.

System information:

Fedora 17, installed clean
Lenovo Thinkpad T500
Intel GMA 4500MHD / ATI Mobility Radeon HD 3650

EDIT:
Bug report:
fglrx static configuration disables autoprobing for intel driver on muxed system - REJECTED

AMD forums - fglrx static configuration disables autoprobing for intel driver on muxed system

More details at phoronix forum topic

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answered 2013-03-09 21:20:32 -0500

bananahammer gravatar image

Hi,

I've had the same experience with my Lenovo Thinkpad W500 (it's basically the same as the T500). After a lot of trying to get the drivers to work, I think I found the source of the problem.

From what I gather, the current catalyst legacy drivers (12.6-2) are not compatible with the current version of the X window server (1.13). I'm sure you figured this out since you're using Fedora 17, which uses 1.12. Unfortunately, the catalyst legacy drivers also conflict with the xorg-Intel drivers past version 2.20.2-2.

You could try downgrading the intel drivers (I think their may also be issues with catalyst conflicting with mesa-libgl too), or you can remove the catalyst drivers and reinstall the Intel drivers when switching from discrete to integrated graphics or vice versa.

At this point I'm going to wait for the drivers to get fixed, though that could be a very long wait.

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Sorry but this doesn't seem helpful to me. I face the same problem for the last 18 months or so, across few driver versions, kernel versions and linux distros. As harsh as it may sound - I need specifics.

Bucic gravatar imageBucic ( 2013-03-13 15:05:19 -0500 )edit

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Asked: 2013-01-15 12:00:03 -0500

Seen: 3,197 times

Last updated: Apr 29 '13