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Dienstag, 14. Januar 2014

Enable Hibernation in Linux Mint 16 "Petra" XFCE

Recently I decided to do my ears a favour and bought a new fan for my old Sony 13" laptop. After exchanging the fan, I found the hard disk being too noisy, so I replaced it with a shiny 240 GB SSD as well. I should have done that earlier ...

Nevertheless: time to try a fresh Linux distribution. I installed Linux Mint 16 (based on Ubuntu Saucy 13.10) in the XFCE flavour. Last time I have tried XFCE was in Xubuntu Dapper 6.06 in 2006 -- and its minimalistic UI without any eye candy didn't please me well that time ... But today, I found a very nice UI with a lot of eye candy and none of the annoying stuff that just slows my computer down. Wow!

After a short testing time, I decided that XFCE was a good decision. However, I missed a critical feature: hibernation or suspend to disk. No idea why, but this is no longer enabled by default in Ubuntu and derivates.

After successfully shutting down my laptop with sudo pm-hibernate, it did not wake up properly, but just rebooted into the standard login. The first lession I learned was that Mint crypted my swap space using a random password, because I enabled encryption for my home directory during the installation. Not good.

Digging through a plethora of tutorials and descriptions, I found the right one: https://help.ubuntu.com/community/E...
I followed the steps as described, except for step 10, which is useless on XFCE.

After rebooting, Mint asks for a password, decrypts swap, restores the recovery image or continues booting. Nice. But one final thing was missing: hibernation was missing in the log out dialogue. On a terminal, type: sudo nano /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla and add the second block as described below:

[Re-enable hibernate by default]

[Re-enable hibernate by default in logind]

After saving the changes, the log out dialogue shows the hibernation button again.

Dienstag, 8. Januar 2013

Firefox 18

So, DSL funktioniert, nächstes Problem: Die Release von Firefox 18 steht an, aber der Fuchs will nicht auf meinem alten Laptop (handgepatchtes Ubuntu 9.10 Karmic):

blexi@blexi:/usr/lib/firefox-18.0$ ./firefox
XPCOMGlueLoad error for file /usr/lib/firefox-18.0/libxpcom.so:
/usr/lib/firefox-18.0/libxul.so: undefined symbol: _ZNSbItN4base20string16_char_traitsESaItEE4_Rep20_S_empty_rep_storageE
Couldn't load XPCOM.

Allerdings läuft FF 17 ohne Probleme. Laut Bugreport liegt es wahrscheinlich an einem Update im Build System.

Langsam muss ich mir wirklich mal Gedanken über ein Update meiner IT-Infrastruktur machen ...

Update 10. Oktober 2013:
Ab Firefox 24 tritt dieser Bug nicht mehr auf, anscheinend durch das Upate auf GCC 4.7.