If you've got a HP Pavilion tx2500 and you have tried to use Linux on it, you 
may have noticed that there are issues with the hybrid graphics setup. To help 
improve the Linux hybrid graphics support for this laptop, please attach your 
DSDT information to this Launchpad bug report specifying your laptop model:
https://bugs.launchpad.net/bugs/312756

To compile your DSDT information, install if you haven't already the acpidump 
and iasl tools:
sudo apt-get install acpidump iasl           # on Debian-based systems

Then run the following commands:

sudo acpidump > acpidump.txt
sudo acpixtract acpidump.txt
iasl -d DSDT.dat

This will create a DSDT.dsl file that you can attach to the bug report.
This information will allow the developers to fully implement the hybrid
graphics features for Linux.

-- 
[Hewlett-Packard HP Pavilion tx2500 Notebook PC] hibernate/resume failure 
[non-free: fglrx]
https://bugs.launchpad.net/bugs/346201
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