Debian Hardware :: Screen Brightness Doesn't Change - No Sound ?

Nov 3, 2010

After some experience with ubuntu i have just installed Debian Squeeze on a dell inspiron 1564.

I have faced with some problems:

1- The screen brightness doesn't change. neither the brightness hotkey works nor the brightness applet changes the brightness

2-There is no sound

I had none of these problems with ubuntu lucid.

Here is the output of lspci command:

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I'd been trying to get into Linux before I bought it so I figured that I would try to get it onto my new Mac so that I could use it wherever I am. I decided to try Debian Lenny 5.0.3 a whirl after reading about all the different distros available. I've successfully installed it and I can get to it with rEFIt, and I have quite a few things working such as the video drivers and wifi. However, I've had trouble getting it to a level where it'd be usable away from home. Here are the main problems I'm worried about:

1) I installed pommed but I still can't use the brightness keys to change the screen brightness. I'm not sure if there's some other workaround for this?

2) I tried some recommended power management packages (gnome-power-manager) but it doesn't seem to be accessible or functional right now. I don't have any way to control it or get to it that is obvious to me. Is an icon or anything supposed to appear on the task bar when you install or what? Getting some sort of power management on here is important because it gets really lousy battery life otherwise.

3) Being a Macbook, there's no right-click button. Multitouch would be really nice (two-finger scrolling!) but I'd be OK with ANY way to right-click with the touchpad. I have a wireless USB keyboard/mouse combo that works at home at least . . . right out of the box too!

4) I've seen some packages called the Mactel PPA, but they are made for Ubuntu. Since Debian and Ubuntu are so similar, is there any way to make those work on Lenny? I think that if I got those to work, I could fix some of the problems above. Or do I have to install Ubuntu?

5) I just noticed that the sound doesn't seem to work yet either.

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4. The screen is black after suspend.

5. The computer will sometimes hang when shutting down (showing desktop background). Possibly related messages in dmesg:

[Code].....

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Code: Select all$ ls /sys/class/backlight/
acpi_video0  intel_backlight
 
Code: Select all$cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

[Code] .....

And I've tried this:

Code: Select allsudo -i kwrite /usr/share/X11/xorg.conf.d/20-intel.conf

And I add the following in this file

Code: Select allSection "Device"
        Identifier  "card0"
        Driver      "intel"
        Option      "Backlight"  "intel_backlight"
        BusID       "PCI:0:2:0"
EndSection

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What causes minecraft to crash and how can I solve it?

Link to error log [verbose] [URL] .....

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[Code]....

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