Whenever I tried to Put into a patch of some moderate complexity a new Object, after typing the 4th character of the new object's name my X server would crash, ending my login session and forcing a new login. I installed the latest official Intel Linux graphics driver using Intel's APT source as per some third party instructions and my problem was solved.
Note: Intel disclaims support for lowlatency kernels with these drivers. I haven't upgraded the Mint kernel to a lowlatency version yet to test.
Details:
Pd-extended 43.4 was crashing my (up to date) HD4000 GPU / UbuntuStudio/x86_64 v12.04 workstation's X server whenever I tried to Put into a patch of some moderate complexity a new Object, after typing the 4th character of the new object's name. It was the only app causing that kind of crash, but it was the last straw with Ubuntu for me (many other problems with UbuntuStudio). So I replaced my OS with Linux Mint 15 / Cinnamon. I was less unhappy with Mint's new set of problems, but Pd kept crashing X. So I deleted Pd-extended and replaced it with the latest (20130724) Pd-l2ork . But that crashed the X server the same way. /var/log/syslog reported gnome-session was crashing the Xserver:
(date time hostname) gnome-session[17963]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
(date time hostname) mdm[17908]: WARNING: mdm_slave_xioerror_handler: Fatal X error - Restarting :0
Googling showed lots of X users having this problem with lots of apps going back several years. Usually they solved it with workarounds that stopped executing the code triggering the crash. Or they installed their entire X system. Or a new kernel upgrade solved it automagically. Or they upgraded the video kernel driver. I opted to upgrade the driver, which forced an upgrade of many essential packages in the entire X system.
The official Intel support pages start at the Intel Download Center at https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=13815 linking to the .deb download at https://01.org/linuxgraphics/downloads/2013/intelr-linux-graphics-installer-version-1.0.2 supports only Ubuntu and Fedora, not Mint. I found an insightful and thorough page at http://www.webupd8.org/2013/04/how-to-use-intel-linux-graphics-drivers.html explaining the Intel support contents, the subtle ways Mint (and some other Ubuntu based distros) requirements differ from the supported distros', and how to add to Mint the official Intel APT sources and install. This way it's a "set it and forget it" repair, so ongoing upgrades to the workstation's OS will be maintained automatically, without revisiting this intervention.
for Linux distributions based on Ubuntu 13.04 (like Linux Mint 15), use the Linux commandline:
echo "deb https://download.01.org/gfx/ubuntu/13.04/main Ubuntu 13.04 #Intel Graphics drivers" | sudo tee /etc/apt/sources.list.d/intellinuxgraphics.list
wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg -O - | sudo apt-key add -
wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-2 -O - | sudo apt-key add -
sudo apt-get update
sudo apt-get upgrade # Or use other package management tool, like Synaptic etc.
Note: Intel disclaims support for lowlatency kernels with these drivers. I haven't upgraded the Mint kernel to a lowlatency version yet to test.
