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Useful information about Ubuntu Linux.
Updated on Jun 21, 10
Created on Oct 08, 09
Category: Computers & Internet
URL:
Juraj Kazda's List: Ubuntu
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It may have defaulted back to a lower setting after the crash.
Try going into the xorg.conf and changing the default depth back to 24.
To do that, gksudo gedit /etc/X11/xorg.conf
Look for Section "Screen"
make sure there is a line that says
DefaultDepth 24
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Open xorg.conf:
sudo gedit /etc/X11/xorg.confFind the device section, which should look like this:
Section "Device" Identifier "Configured Video Device" EndSection
And add the driver line like this:
Section "Device" Identifier "Configured Video Device" Driver "vboxvideo" EndSection
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Section "InputDevice"
Identifier "Configured Mouse"
Driver "vboxmouse"
Option "CorePointer"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "vboxvideo"
EndSection
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$ cat /etc/X11/xorg.conf
# xorg.conf (X.Org X Window System server configuration file)
# ...cut more comment lines...
Section "InputDevice"
Identifier "Configured Mouse"
Driver "vboxmouse"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "vboxvideo"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
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I finally got my bluetooth working correctly in Intrepid by installing blueman. Thanks goes to launchpad for making a repo for easy dependency resolution, blueman uses older libraries and it is a major drag to install them manually since several packages appear to have circular dependencies. i Have detailed the steps i took below.
1) remove blues-compat if its installed (failure to remove will result in install failure and broken packages in following steps)
sudo apt-get remove bluez-compat
2) add the blueman repo, also need to make sure "universe" is enabled
sudo sh -c "echo 'deb http://ppa.launchpad.net/blueman/ubuntu $(lsb_release -sc) main' >/etc/apt/sources.list.d/blueman.list"
3) install updated (actually the old) packages
Your package manager should pop up with updates. if not go to System/Administration/Update Manager and install all the updates
4) install blueman
sudo apt-get install blueman
5) configure blueman
start blueman from the terminal so you can see whats going on by typing "blueman"
click "List Seen" and select the device.
-select bond (i used passkey of 0000) (may have to hit the connect button on the device to get passkey prompt)
-select other/add trust
-selct edit/services and click the config icon next to input. remove the device shown there and click close
my mouse started working right away and it initializes automatically on reboot. i now like bluetooth again:D
hope this helps someone else
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Dec 18, 08
To check whether your kernel is configured to use all your RAM, enter the command free -m. This command gives you the total amount of unused RAM on your system, as well as the size of your swap file, in megabytes. If the total memory is 885, then no high memory is enabled on your system (the rest of the first gigabyte is reserved by the kernel for its own purposes). Similarly, if the result shows over 1 gigabyte but less than 4GB when you know you have more, then the 4GB parameter is enabled, but not the 64GB one. In either case, you will need to add a new kernel to take full advantage of your RAM.\n\nOn some distributions, you can add a generic kernel that meets your requirement in a matter of moments. In Debian, for instance, use the apt-cache search command to locate a recent linux-image package for a kernel for a 686 processor if you want support for up to 4 gigabytes. If you want support for up to 64 gigabytes, look for a kernel that ends with 686-bigmem. These kernels will enable support for 64GB. Unfortunately, a generic kernel for only 4GB does not exist. Similarly, in Ubuntu, look for a recent kernel image whose package name ends in smp; these kernels are designed for dual core processors, but work on single core processors as well, although sometimes with a small performance hit.\n\nIf your distribution does not include a useful generic kernel, or if you want to fine-tune the use of high memory on your system, you need to compile a custom kernel. You should consult your distribution's documentation for the details of where to get the source code and headers and any unique aspects of compiling a kernel for it. However, enabling high memory support involves no more than five parameters in the Firmware Drivers section:\n\n * Make sure that CONFIG_NOHIGHMEM is not set.\n * Set either CONFIG_HIGHMEM4G or CONFIG_HIGHMEM64G to yes, using whichever one is appropriate for the RAM in your system. If you have Note that you should use the 4 gigabyte parameter for less than 4 gigabytes of RAM, and the 64 gigab
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You can try to pass "enable-pae ht=on" on grub, and see what will happens, or use a 64-bit Ubuntu version.
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