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I have a MotionComputing M1400 pen tablet. It runs Debian Squeeze, and today I noticed it was using software rendering for OpenGL, so I decided to try to use the intel driver. My chipset is the Intel 855GM. When I initially installed Debian, I had to modify xorg.conf so it would pick up my pen. That /etc/X11/xorg.conf is here. To install the driver, I added the ppa ppa:glasen/intel-driver and ran sudo apt-get install xserver-xorg-video-intel. Upon reboot, my cursor is visible, but I'm sitting at a black screen. My cursor changes to a text selection cursor when I move it over certain parts of the screen, which seem to be the login prompt. I went into tty6 and stopped gdm3 with /etc/init.d/gdm3 stop and then tried Xorg -configure, which failed. Here is the log file it produced. I tried to combine the xorg.conf.new it created with my original xorg.conf into a new xorg.conf, which is here, but that didn't work either. What should I do to get a graphical interface back?

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Is there any specific reason to go with the ppa instead of the Debian package? There's also a backport of a newer version, 2.15.0. – sr_ Aug 7 '12 at 6:48
When I use the Debian package, it falls back to software rendering, as reported by glxinfo. – Suchipi Aug 7 '12 at 7:15
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I'd give the backport a try (instructions). – sr_ Aug 7 '12 at 7:39
The backport did the trick. Thanks, @sr_ ! – Suchipi Aug 7 '12 at 21:59

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