Lubuntu 11.04 to 11.10 dist upgrade reversion to Unity

Where a computer had been running Ubuntu 11.04 and the Unity desktop, and said computer was changed over to the Lubuntu 11.04 desktop using the Ubuntu Software Center, the computer reverts to Ubuntu with the Unity desktop on distribution upgrade to Ubuntu 11.10.

Worse, the automatic log in is reset to user name and password required, in other words, the autologin is disabled in default.conf and dgod is re-enabled, even if one clicks on "keep" configuration file intact.

Getting back to an automatic log in Lubuntu 11.10 desktop is all but impossible - only loading Lubuntu 11.10 from a CD - a full reinstall, works to get back to Lubuntu.

There is a partial work-around, but it leaves in place the splash screen. The issue appears to be the switch to the lightDM desktop manager in 11.10, it usurps the lxdm desktop manager.

The work around is described below.

Upon restart after upgrade one will find oneself in the Ubuntu 11.10 Unity desktop, a desktop that remains infinitely confusing for my students. Log out from the desk top and return to the log in splash screen.


Click on the "gear" wheel in the log in dialog. Change the desktop from Ubuntu to Lubuntu. Log in using the password.


Once logged in, choose Users and Groups.


Note the Password: Asked on login. Click on change.


At the bottom of the pop-up dialog box choose Don't ask for password on login.


Enter password again. Click OK and Close out the dialog boxes. Restart.


At this screen press Enter or click on Login to boot to the Lubuntu desktop. Not automatic, but no password needed.

Automatic login is not possible. Editing the default.conf file results in an automatic login to the Unity desktop, even if the desktop choice had been Lubuntu.

Note that none of the above happens unless the computer has the gdm and ran Unity under 11.04. Lubuntu 11.04 boxes built from the CD retain their automatic login capabilities and remain in the Lubuntu desktop on upgrade.

Comments

Post a Comment

Popular posts from this blog

Plotting polar coordinates in Desmos and a vector addition demonstrator

Image
In an earlier post I noted that Desmos did not directly plot polar coordinates. Not only was I incorrect, but Desmos responded to my blog to correct me! Although I had at some point seen that one could define a function f(x)=3x+5 and then have Desmos calculate f(6), I had not absorbed how this might be used to plot polar coordinates. The above works beautifully . Realizing that I could effectively program Desmos, I applied this thinking to demonstrating how to add two vectors when given the magnitudes m and the direction angles theta. The graph calculates the i and j components for the two vectors and then adds the vectors, graphically displaying the result while also providing information on the magnitude and direction of the vector sum. m1 and theta1 are the magnitude and direction angle for one of the two vectors, m2 and theta2 are the magnitude and direction for the other vector. All four are dynamically interactive and can be changed. The diagram purports to illustra
Read more

Setting up a boxplot chart in Google Sheets with multiple boxplots on a single chart

Image
The  Google Statistics  add-on for Google Sheets can display multiple boxplots in a single chart. The key is the layout of the data. One column should be the variable by which the data is to be grouped, the other column should be the data to be box plotted. Set up the Statistics add-on with the data to be plotted as the variable, and the grouping column as the "by" variable. In this image I had deselected all but the boxplot option, the result was the appearance of the Moment, Standard errors, and Confidence intervals options. The default is apparently a 95% confidence interval for the mean. The result is multiple boxplots on a single chart with a common scale. The new tab that is created also quotes 95% confidence intervals for the mean. Note that as of 2018 the Google Statistics add-on cannot be found by search in the add-ons. In addition, as of May 2018 the add-on no longer verifies, possibly due to the add-on not having been updated since August 2017. One may ha
Read more

Traditional food dishes of Micronesia

Image
Clara, Jennette, and Joanie presented ground hard taro cooked in an umw, effectively a hot rock oven. Pohnpeian: rotama. Pingelapese: sero. Mwoakillese: rodma. Mortlockese: Amahd. Kosrae: rodoma. After cooking in an umw the rotama is pounded with the petiole of a palm frond. Rotama is made from hard or swamp taro, known as mwahng on Pohnpei, mweian on Pingalap, pula in Mortlockese, and pahsruhk on Kosrae. In traditional times on the outer islands the women had primary responsibility for tending the taro while the men handled fishing and climbing tasks. Joesen and Noeleen presented fermented breadfruit from the outer islands of Yap such as Woleai and Eauripik. The raw ingredients were actually brought in from Yap, Noeleen prepared the maare.  The leaf wrap is ti leaf - Cordyline fruticosa. Pauleen, Barnson, Trisha, Verginia, Con-ray, and Maylanda from Kitti, Pohnpei brought in mahi umw, koahpnoair koakihr, and uht sukusuk. Above is breadfruit umw, mahi umw, one o
Read more