My notebook is HP ProBook 4530s-LH306EA. I have two video cards discrete(AMD Radeon HD 6490M) and integrated.
Today I have installed Ubuntu 12.10, and meet the problem that my computer become very hot (Jupiter shows from 75-85 degrees). I have understood that the problem in video card, so I have tried to switch off discrete using https://help.ubuntu.com/community/HybridGraphics But I don't know how to switch it forever, because after computer restarts discrete is switched on.
And I cannot understand why there is so big problem with this video cards? On windows exists program, that knows which of this two video cards to use.
PS I have missed step with backup and start installing, but then occur error: "One or more tools required for installation cannot be found on the system. Install the required tools before installing the fglrx driver. Optionally, run the installer with --force option to install without the tools. Forcing install will disable AMD hardware acceleration and may make your system unstable. Not recommended. See
/usr/share/ati/fglrx-install.log for more details"
In log file is written:
Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. /lib/modules/3.5.0-17-generic/build/include/linux/version.h cannot be found on this system.
PSS I have run with --force option and get:
Supported adapter detected. Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. /lib/modules/3.5.0-17-generic/build/include/linux/version.h cannot be found on this system. fglrx installation is being forced. Installation will proceed without the required tools on the system. Uninstalling any previously installed drivers. Unloading radeon module... ERROR: Module radeon is in use Unloading drm module... ERROR: Module drm is in use by radeon,i915,ttm,drm_kms_helper [Message] Kernel Module : Trying to install a precompiled kernel module. [Message] Kernel Module : Precompiled kernel module version mismatched. [Error] Kernel Module : Kernel module build environment not found - please consult readme. [Reboot] Kernel Module : update-initramfs