Where is rc.conf, and how to boot with acpi=off?

[Loshmi]

I want to install Kubuntu on my laptop HP compaq 615( cause i love how that OS feels and looks on my desktop)...But i have problems with getting black screens after reboot. I found a lot of people with this laptop having exactly the same problem (namely black screens) and i found a hypothetical solution here.

http://bbs.archlinux.org/viewtopic.php?id=82052

"I have experienced exactly the same problem with my HP Compaq 615 notebook
KMS si not the source of problem,also radeon.modeset=0 at Grub kernel line doesn't solve anything
The only way to boot is to append acpi=off paramter
Problem is caused by pcmcia and pcmcia_core acpi modules(strange indeed that they are loaded,becouse my laptop has a express not pcmcia slot neutral)
Boot with acpi=off and add these modules in rc.conf with ! to disable them from loading with system,boot again normally and everything will work fine now with acpi enabled
I also notice that people with similar hardware like my netbook(AMD chipset)have same problems
I hope that this helps and sorry for crappy english big_smile

P.S. Problem is linked with new 2.6.3x kernels,it's not distro releated(same thing is happening on OpenSUSE 11.2 and last version of Ubuntu)and its upstream-on older kernels up to 2.6.29 everything works fine smile"

I think it should work, cause it helped many people...but i am a total noob and don't know where can i put acpi=off, and where is rc.conf??
And do we have rc.conf in Kubuntu, and if we don't what file should i look for?

I thank you in advance!

[toad]

Re: Where is rc.conf, and how to boot with acpi=off?

Kubuntu has no rc.conf - this is a file within arch for telling the system which modules and daemons to load in which order so whatever you found will not work

As for the black screen - search for dibl's FAQ post in this forum and check for the entry detailing how to use envy.

HTH

[Detonate]

Re: Where is rc.conf, and how to boot with acpi=off?

You can edit the /etc/default/grub file and add acpi=off to the command line settings. The line would look like this:

GRUB_CMDLINE_LINUX_DEFAULT="acpi=off quiet splash"

Must be edited as root.

Then run:

sudo update-grub

Then reboot.

Hope this solves your problem.

[Loshmi]

Re: Where is rc.conf, and how to boot with acpi=off?

Well, i will try that when i get home...i am thinking about the possibility that kernel doesn't recognize that i have a wide screen, and maybe that is the problem...
I tried putting VGA=... in the grub but it reported "vga is deprecated use gxpayload"..BUT it seems to me that although deprecated VGA command was executed (cause i saw the resolution had changed, very big letters etc.) and i managed to get into system. System was running ok, with the resolution configured inside ...So maybe i can try to change the resolution of grub loader to some of the wide screen options...and how to do that the proper (not deprecated ) way

Any suggestions?

[Detonate]

Re: Where is rc.conf, and how to boot with acpi=off?

I have not done this, so proceed at your own risk. But I think you can also do this in the same file. Look at the stanza that reads:

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

I think if you uncomment the last line and enter the desired resolution and run update-grub, it might work. But it might be talking about the just the Grub menu and not passed on. I don't know.

[gnarly_buttons]

Re: Where is rc.conf, and how to boot with acpi=off?

I want to install Kubuntu on my laptop HP compaq 615( cause i love how that OS feels and looks on my desktop)...But i have problems with getting black screens after reboot. I found a lot of people with this laptop having exactly the same problem (namely black screens) and i found a hypothetical solution here.

http://bbs.archlinux.org/viewtopic.php?id=82052

"I have experienced exactly the same problem with my HP Compaq 615 notebook
KMS si not the source of problem,also radeon.modeset=0 at Grub kernel line doesn't solve anything
The only way to boot is to append acpi=off paramter
Problem is caused by pcmcia and pcmcia_core acpi modules(strange indeed that they are loaded,becouse my laptop has a express not pcmcia slot neutral)
Boot with acpi=off and add these modules in rc.conf with ! to disable them from loading with system,boot again normally and everything will work fine now with acpi enabled
I also notice that people with similar hardware like my netbook(AMD chipset)have same problems
I hope that this helps and sorry for crappy english big_smile

P.S. Problem is linked with new 2.6.3x kernels,it's not distro releated(same thing is happening on OpenSUSE 11.2 and last version of Ubuntu)and its upstream-on older kernels up to 2.6.29 everything works fine smile"

I think it should work, cause it helped many people...but i am a total noob and don't know where can i put acpi=off, and where is rc.conf??
And do we have rc.conf in Kubuntu, and if we don't what file should i look for?

I thank you in advance!

I'm trying to deal with this same problem. I spoke with my linux teacher, and he mentioned that I should blacklist the "pcmcia" "pcmcia_core" modules in /etc/modprobe.d/ . I did this, but it didn't seem to help. Turning off the acpi did make the computer boot up and function. However, I then have no power management, the boot splash screen doesn't work, and I have to manually press the power button to turn off the power.

Any ideas?

[toad]

Re: Where is rc.conf, and how to boot with acpi=off?

Both of you want to find out more about the Ubuntu boot up sequence.

Since I am a total google wizard I typed in "Ubuntu boot up sequence", did my fantastic magic and the first link google spat back at me was:
https://help.ubuntu.com/community/UbuntuBootupHowto

HTH