How to re-configure graphics from Intel integrated to Intel / ATI switchable?
- by Bucic
There are lots of 'how to get switchable graphics to work' guides but I found none on how to configure a system for switchable graphics operation on Ubuntu from the ground up, nor explaining the current driver situation for particular computer models (integrated+discrete combinations). Example: https://help.ubuntu.com/community/HybridGraphics
My system being mature and on Intel integrated card also makes things complicated.
System information:
Ubuntu 12.04 amd64, installed clean with system configured to use only the integrated Intel card
Lenovo Thinkpad T500
Intel GMA 4500MHD / ATI Mobility Radeon HD 3650
Current situation:
Mature and up-to-date system with no configuration changes to what's given above.
I've made a backup image of the system (Clonezilla) so regardless of what's written below let's assume it's our starting point. If something in What I have already tried is not clear you may as well diregard it.
What I have already tried:
Configuring BIOS to switchable graphics and:
Installing Additional Hardware drivers - returned an error.
Installing proprietary amd-driver-installer-12.6-legacy-x86.x86_64.run automatically - system starts to 'low-graphics mode'.
Tried fixing as per https://help.ubuntu.com/community/BinaryDriverHowto/ATI#Manually_installing_Catalyst_12.6.2C_special_case_for_Intel.2BAC8-ATI_hybrid_graphics
Got lost, gave up.
Please note that while configuring BIOS for integrated graphics only is pretty straightforward, configuring for switchable graphics is not.