Comments on: Suspend/Resume in Karmic /2

By: Ubuntu 10.10 on MacBook pro 5.2 « jefsen's blog

Ubuntu 10.10 on MacBook pro 5.2 « jefsen's blog — Tue, 18 Jan 2011 20:49:51 +0000

[...] More info on that here [...]

By: clata

clata — Sun, 13 Dec 2009 17:16:21 +0000

Hi, in the other post about karmic sound problem on resume I wrote:

I tried your tip too but it didn’t work for me…
Anyway the following workaround fixed the issue in a quite elegant way for now.

After resuming your computer, if the speaker-phones sound went away and only the headphones keep working, try the following from the command line to restore full functionalities to your sound system:

$ sudo alsa force-reload

ciao.

Let me add that I don’t use a Mac, my karmic 9.10 is on a HP Compaq nx8220 laptop.
ciao.

By: Luigi

Luigi — Thu, 03 Dec 2009 12:41:00 +0000

Hi Iubuntu,

from the ubuntu community documentation wiki, they claim that the suspend/resume works out of the box with karmic. But evidently it is not. I have no idea to suggest you, but try to find somebody that solved your issue on the same hardware you are using.
I am sure that, with some patience, you will sort out this problem. Linux is always like this: to have everything working you need patience to write on forum and discuss with people, but at the end you will know your hardware better and get the best from your system.
Don’t give up! And best luck!

Luigi.

By: lubuntu

lubuntu — Thu, 03 Dec 2009 12:21:22 +0000

Hi,
Beside the acpi irq suggestion that you gave in the other blog item, I have tried this one here as well on my Macbook pro 4,1 (that doesn’t suspend but instead hangs). The s2ram –force does not work either, unfortunately! There is a difference, in the sense that instead of going to a blanked screen with the acpi irq ‘remedy’, here I get a login console (but it is hung as well) and a message like “resume libgcrypt version 1.4.4″ type of message. But it does not resume.

By: Luigi

Luigi — Tue, 01 Dec 2009 18:24:30 +0000

Hi Ivo, I don’t know… I had nvidia_bl in my /etc/modules, but I removed after karmic update and the brightness works even better on my mac (macbook pro 5.1, alluminium)
I don’t know, but it seems that my systems loads mbp_nvidia_bl without needing to specify any particular configuration:

luigi@hal9000:~$ lsmod | grep nvidia_bl
mbp_nvidia_bl           3736  0

I suggest you to actively partecipate to the apple users on the Ubuntu forums, if you aren’t doing it already. It’s a great source of informations and a way to contribute to make ubuntu work on Apple hardwares.

Luigi.

By: Ivo

Ivo — Tue, 01 Dec 2009 17:43:39 +0000

Luigi, how can you change brightness screen without nvidia-bl??
With Karmic and after the installation of Nvidia restricted drivers, i found that load this module on startup was the only way to allow screen brightness change.. Do you use another method?
I would remove nvidia-bl package if only i could normally change screen brightness…

By: Luigi

Luigi — Tue, 01 Dec 2009 17:32:53 +0000

Hi Ivo, I haven’t such issue. But you can try to add something like “modprobe nvidia_bl” somewhere – at beginning of the resume_video() function ? – of the file /usr/lib/pm-utils/sleep.d/99video

If it doesn’t work you may want to ask on the forum for further help:
http://ubuntuforums.org/showthread.php?t=1215928

I actually don’t use nvidia_bl, fortunately my mac works fine (and better) without it.

Good luck!

By: Ivo

Ivo — Tue, 01 Dec 2009 17:06:21 +0000

Hi Luigi, Thank’s for this really interesting post

It solved my suspend issue (not tried Hibernation, because it already works by default) but I have one minor new issue with screen brightness
I had previously downloaded nvida-bl package from Mactell PPA and put it in etc/modules in order to load it on startup and in order to change screen brightness (that doesn’t work on Karmic with Nvidia restricted drivers).
With your solution, after wakin from suspend, it seems that that module is not loaded because brightness is lower and i can’t change it (i click on the button, but brightness doesn’t increase

Can you help me?

Thank’s

DemoneIVo