I am a Linux and Ubuntu newbie, and converted an old laptop to run Ubuntu (sole OS). The Machine is Sony Vaio SZ VGN-SZ75GN/B, with Intel Core 2 Duo, 3GB RAM, and NVIDIA GEFORCE 8400M GS GPU in a hybrid graphic configuration. Ubuntu is 16.04 LTS 32bit, and chksum verified before installation.
The problems are:
Sometimes at start-up, the screen just shows a black and white pattern and nothing happens
Sometimes it does start up, but as soon as I click the Ubuntu Icon, the screen goes garbled for a while, and resets when i click some other area
I tried the following commands and their results are:
sudo grep -i switcheroo /boot/config-* /boot/config-4.4.0-31-generic:CONFIG_VGA_SWITCHEROO=y /boot/config-4.4.0-59-generic:CONFIG_VGA_SWITCHEROO=y lspci -v |grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation G86M [GeForce 8400M GS] (rev a1) (prog-if 00 [VGA controller])
Please advise what can I do further to fix these issues. I don't intend to run games or like, so would be ok to use one or the other card.