http://acogitosis.krop.pl polscy naukowcy udowodnili: myślenie boli Sat, 10 Dec 2011 14:56:26 +0000 http://backend.userland.com/rss092 en "New" Postgres JDBC drivers check database engine version and if it's not below 7.3 they will ignore charSet declaration. It breaks encoding of 8-bit characters if database has SQL_ASCII encoding (which basically means DONT_CARE_ANYTHING_GOES). If your database is set to SQL_ASCII and in reality it stores e.g. Windows-1250 (CP1250) characters, ... http://acogitosis.krop.pl/2011-11-18-solution-to-postgres-jdbc-driver-ignoring-charset-directive-with-sql_ascii-database/ I have /tmp and /home on different partitions. When trying to move a file from /tmp to /home using File.renameTo() -- it fails. Turns out one has to copy and delete the file himself, renameTo works only inside single partition. http://acogitosis.krop.pl/2011-05-11-en-java-filerenameto-doesnt-work-on-linux-between-partitions/ [http://www.giuspen.com/x-tile/](http://www.giuspen.com/x-tile/) http://acogitosis.krop.pl/2010-12-20-notka-dla-siebie-ukladanie-okienek-w-ubuntu/ Notka dla siebie - czy takie zmiany w /etc/sysctl.conf faktycznie przyspieszą działanie Ubuntu na komputerze z mnóstwem ramu? vm.swappiness=10 vm.vfs_cache_pressure=50 http://acogitosis.krop.pl/2010-12-17-duzo-ramu-na-ubuntu-i-sysctlconf/ http://acogitosis.krop.pl/2010-12-11-hmmm/ It turns out that Internet Explorer caches AJAX requests (how clever). If you're using $.ajax(), you can pass cache: false option to it, but if - like me - you're using $.get() and $.post(), just use $.ajaxSetup({cache: false}); somewhere at the start of your script. http://acogitosis.krop.pl/2010-12-10-en-fix-jquerys-get-not-working-in-ie-internet-explorer/ Mostly for my future reference. -threads 8 should be changed to the number of CPU cores (my i7 has 4 with HT, thus I set it to 8). ffmpeg -i input.avi -acodec libfaac -ab 48k -vcodec libx264 -vpre fast -vb 500k -threads 8 -f flv output.flv http://acogitosis.krop.pl/2010-12-08-en-using-ffmpeg-to-convert-avi-video-to-flv-using-h264-and-reasonable-bitrates/ Mostly note to my self for future reference. What they don't tell You in the [tar backup tutorial](https://help.ubuntu.com/community/BackupYourSystem/TAR) is that it's not enough to edit /etc/fstab (and their instructions for grub are for grub-legacy). Because after restoring you probably have new partition UUIDs, you must: boot livecd mount your root fs mount -B /dev /rootfs/dev, ... http://acogitosis.krop.pl/2010-07-28-en-fixing-ubuntu-boot-process-after-restoring-tar-backups-to-newly-formatted-disk-with-uuid-changed/ Install VirtualBox Guest Additions in Windows' safe-mode so system file protection doesn't interfere with the installation, it's that simple and fixed all my VirtualBox performance problems. http://acogitosis.krop.pl/2010-07-08-en-fixing-virtualbox-31-32-and-others-slowness-for-ubuntu-host-and-windows-xp-guest/ IE can't do anything right. If you save some graphical elements to PNG, and try to put them on an area with CSS-defined color, there will be a difference even if you used the same color in the PNG -- IE renders PNGs darker than it should. The reason for this ... http://acogitosis.krop.pl/2009-06-26-en-fix-png-images-dark-in-ie/