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Hardware Specific / Need Help - Ubermix 3.11 on Dell GX270
« Last post by hallertaux on December 09, 2016, 08:42:35 AM »
Hello All,
my first post - I teach adults with intellectual / developmental disabilities. We got a donation of 26 old machines, Ubermix 3.11 runs real smooth on the newer models (GX520+) but after installing it on the older machines, when it boots up I just get a black screen with a blinking cursor line (not sure what it's called but it's this: _ ).

I know the computers work because I'm using Ubermix to replace Windows XP and I tested all machines before replacing the OS, winXP loaded fine.

I reset the partitions using option 5 when doing the CD install. That didn't help.

I tried both the 64 and 32 bit versions.

I tested out Ubermix 2.5L and it installed without issue.

Is there any hope that I can use 3.11 on the older machines? If I can't I'll have to use 2.5L on all machines so that it doesn't confuse the clients when they use different computers and the UI of 3.11 is SO much more friendly and would be Much Much easier for my clients to use.

Thank you for any help!
I have not came across my Male Edge results this issue in the 400+ ubermix Acer Travelmates.

Danke Schon  ;)

I have once but it seemed to fix itself.
General Discussion / Re: Multiple user accounts -- possible?
« Last post by PaulM on November 26, 2016, 02:01:29 AM »
I have a requirement for three users, myself and my two grandaughters. I've found a way to create and restore the Ubermix image manually, but it would certainly be a great help if it were included in the normal scripts.

This is how I did it :

Create a standard install and re-boot into full customisation so you are editing the default install.
Edit /etc/lightdm/lightdm.conf and comment out the two 'autologin...' lines, this puts up the login menu.
Now create the additional users, I created two 'standard' users, set up and test in the normal Ubuntu way.
Update the USB memory stick Image, then do a Simple Update, which creates the USB IMAGE partition.
Re-boot into full customisation, change to root user and compress the two additional users 'home' directories
Copy the two compressed files to the USB IMAGE partition.

The USB memory stick can now be used to install another system with the additional step of booting into full customisation mode and uncompressing the two additional users 'home' directories from the USB memory stick..

This works for me and would be a useful addition to the standard system scripts if it could be implemented.

Hardware Specific / Re: UM 3.0 - Wireless not available on HP 3125
« Last post by jrerick on October 27, 2016, 11:11:04 AM »
Solved my problem.  Had to install the driver for the Ralink Wireless - From here.

Then I had to follow these steps here as my wireless didn't stick after my restart.

sudo ifconfig -a

will list all the available ehternet interfaces. Now activate your WIFI interface by:

sudo ifconfig interface-name up

here interface-name should be one listed from executing ifconfig -a command. Now restart network manager by:

sudo service network-manager restart

Restarted 3 times following just to check with success.  Rebuilding the install key right now.
Hardware Specific / UM 3.0 - Wireless not available on HP 3125
« Last post by jrerick on October 26, 2016, 12:39:45 PM »
I've installed 3.0 on a HP 3125.  On first run - I'm able to put in our WiFi password without issues and wireless works.  I shut down and turn back on - wireless says it's unavailable even though it's enabled.  I've run into this on two different machines.

Any help would be greatly appreciated.
Hardware Specific / ACER TM B116 keep freezing
« Last post by Hiếu Trần on October 06, 2016, 07:14:31 PM »
Hi all,

My school is using UBERMIX 2.41 on ACER TM-B116. The netbooks keep freezing 10 times a day. Anyone has same problem?
I may have found a really really really good solution:

Two scripts are provided by the author of that post, a couple of posts above (and again right below).
One of them disables all C6 power-saving states, and enables the C7 states. Apparently Bay Trail Intel CPUs have a bug with C6 states.
Using this script from /etc/rc.local, you should be able to run Bay Trail devices with standard kernels, without any parameters, and still with battery saving.
I will test later, but it sounds really good!
I am testing today with the latest standard kernel of Ubuntu 16.04, 4.4.0-34, and it seems very stable. I think the Ubuntu kernel developers may have backported the fixes.

This is great news for a lot of people out there :)

EDIT: Looks like I spoke too soon. According to the kernel bug report, people are still experiencing the freezes with kernel 4.4.0-34.
I am going to test kernel 4.6.7 (I am having a separate issue with ath10k_pci wifi and kernel 4.7.2, so I am hunting for a better kernel).
According to the bug report kernel 4.6.3 or higher has solved the issue as well.

I am running my Asus TP200SA (or E205SA) laptops with standard Ubuntu for this reason. By applying the latest kernel 4.7.2 from the Ubuntu Mainline Kernel PPA, I have managed to get very stable machines, without the cstate parameter.

That parameter turns off powersaving features of the processor, which can increase heat and shortens battery life.
So... I guess it would be great if Jim could make a kernel for Ubermix based on 4.7.2 :)
General Support / Any way to store UEFI settings on an image?
« Last post by tlscott99 on August 07, 2016, 01:51:33 PM »
I have 100+ HP Touchscmart AIO systems to install Ubermix 3.1.  These systems are set to UEFI by default in BIOS.  I can image each system fine if I use the UM 3.1 USB directly on each machine, using UEFI settings.  It boots fine under UEFI.

My question -  is there a way to store the UEFI settings when I create a USB image from this particular computer.  I like to pre-image my hard drives but the UEFI settings don't seem to store the UEFI settings on the UM 3.1 USB I created.

I know I can do each system one at a time, but it would sure help to pre-image the hard drives with a UEFI settings.  Any suggestions?
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