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Nouveau driver not loaded

After experiencing some X11-crashes, it turns out that X11 was using the modesetting driver instead of Nouveau. For some reason my Debian configuration was not selecting the driver I needed.

If you inspect your X log-file (usually /var/log/Xorg.0.log) and look for Modeline entries, the log lines will start with modeset(0) if you are using the modeset driver, and with NOUVEAU(0) if you are using the Nouveau driver.

Firefox: You've launched an older version

After upgrading my workstation to buster, Firefox insisted on creating a new profile:

The new version was 68.2, the old version too, but Firefox kept complaining.

The solution: create a new profile, close Firefox and compare ~/.mozilla/firefox/*/compatibility.ini. Copy the LastVersion setting from your new to your old profile. Now Firefox is happy to use your old profile again.

A strange Java OPatch error

After installing a new version of OPatch on an Oracle database home, I got the somewhat mystifying error:

The java.library.path system variable is missing or invalid. Please set java.library.path with a correct value and retry the operation.

It turns out this is the error you get when you install a 32-bit version of OPatch into a 64-bit Oracle home.

Missing ports and rpcinfo

I was making an inventory of the bound ports on my server, when I encountered a rather strange situation: a high port that was not associated with any process.

The easiest way to find sockets like that is with:

Create database fails on package STANDARD

While scripting the creation of an Oracle database, I somehow kept getting errors during the CREATE DATABASE:

ORA-06553: PLS-213: package STANDARD not accessible

Very weird. Until I realized I was using a generic scripting function that issued a SET SERVEROUTPUT ON. It turns out that Oracle can not cope with that until you have loaded catalog.sql and catproc.sql.

xs4all VDSL with the Vigor 130

I am back on a slowish VDSL home connection. After getting used to high-speed fibre, this is quite a set back. My provider is xs4all. They provide a Fritzbox 7360 v2 modem. It used to be that you could set these to bridge the VDSL signal to your ethernet, but this is no longer possible for recent firmwares.


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by Dr. Radut