I am quite a beginner with Ubuntu which I like very much but does give me severall troubles. I actually use Xubuntu 13.10 and I am running it on a Sony Vaio with a ATI radeon graphic card. The processor is a little old, I am talking about a Intel Core Duo 2.
I need some clarification on the GRUB_CMDLINE_LINUX_DEFAULT line which can be found in the grub file. Basically a few days ago I had the problem that every time I would close the lid of my laptop or the PC would go to suspend when I then would turn the PC on again it would actually reboot and not simply allow me to re-enter in the OS.
To fix this I found that changing
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_sleep=nonvs"
would solve this.
Later I had another problem, no audio came out from my TV speakers when I would connect my PC to it via HDMI.
To fix this I found that changing:
#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"
would solve it.
Now, of course I seems I need to choose, either having the PC not rebooting everytime it suspends OR having HDMI audio and this is annoying.
So my question is, what exavtly is the GRUB_CMDLINE_LINUX_DEFAULT and how can I keep both lines working together?
Thanks a lot for your help!
P.S: of course after each grub file editing I always updated the grub via sudo update-grub.