0
votes
0answers
14 views

How to reinitialize processor for /sys and disable integrated graphics

I have upgraded my laptop from Intel Pentium P6100 to Core i5-460M. i5 supports Turbo Boost. To switch this I need to do: echo 0 or 1 > /sys/devices/system/cpu/cpufreq/boost But my System ...
3
votes
1answer
712 views

How to disable the discrete gpu? I get 'Kernel failure' with the normal method

I have notebook hp dm3-2015er with two graphic cards. $ lspci | grep VGA 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880M [Mobility Radeon HD 4225/4250] 02:00.0 VGA ...
2
votes
2answers
611 views

switcheroo to discrete turns off backlight on laptop screen

AMD cedar/ Intel ironlake hybrid graphics. Custom kernel 3.8.3. Free radeon xorg drivers. When I switch from integrated to discrete, I do a killall lightdm and X doesn't automatically respawn like it ...
3
votes
0answers
957 views

Thinkpad T530 with Optimus and Docking Station

I have a Lenovo Thinkpad T530 with Optimus video, which is not supported on 12.04.1. I don't normally need the discrete (nVidia) graphics, so I turn it off in the BIOS settings to achieve longer ...
3
votes
1answer
2k views

How can I disable one Graphics card/GPU on my system? (Interchangeable graphics involved)

The problem I have is this: I have a DELL laptop with 2 GPUs, an Intel integrated and high performance of AMD Radeon HD a 6470m, but Ubuntu does not detect it. However, the two are active at the same ...
2
votes
4answers
10k views

Hybrid Graphics on Ubuntu 12.04 switching to discrete

I have a Sony Vaio VPCCB-27FX with hybrid graphics. Using vgaswitcheroo enables me to switch my discrete card off to save power. Now when i want to switch to the discrete card for performance, my ...
3
votes
2answers
2k views

vgaswitcheroo not available on cold boot, only after restart

I am running the new Ubuntu 12.04 64-bit release on my MSI CX420 laptop. It has 2 GPUs, an ATI and an Intel integrated one. So my problem is that, whenever I start my laptop for the first time, ...
1
vote
1answer
8k views

how to install swichable radoen hd 6470M drivers for ubuntu 12.04 LTS [duplicate]

Possible Duplicate: ATI 6470m & intel HD graphics 3000 drivers? i have hp pavilion g6 i5 laptop with Radoen hd 6470M switchable VGA. i installed it the Ubuntu 12.04 LTS but VGA drivers ...