Pradhap 's UNIX Corner

Wednesday November 26, 2008

Solaris Thinkpad T61 / T61p Suspend to RAM support

Currently I am running Solaris Nevada 102 build and suspend to RAM and resume works with Thinkpad T61p and T61 laptops. Only problem I faced is with OSS driver, sound stops working after resuming. With the recent "audiohd" driver integration this can be tackled.  If you have freshly installed Solaris Nevada 102 and above then you can skip the OSS removal step and go direct to enabling suspend to RAM support.

1) remove oss driver with "pkgrm oss"

2) touch /reconfigure and then reboot the machine. 

Now Solaris uses "audiohd" driver for sound instead of oss driver.

Enabling Suspend to RAM support:

           Add the below entry to /etc/power.conf

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S3-support              enable

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Run " /usr/sbin/pmconfig"  to activate it.

To test the Suspend to RAM support run the command " /usr/openwin/bin/sys-suspend" and then select "suspend" option. To resume press power button.

Tuesday November 25, 2008

Solaris Thinkpad T61p projector configuration

The default Nvidia driver that is being shipped with Solaris Express/OpenSolaris distro doesn't allow you to switch to 1024x768 resolution for Thinkpad T61p.  Most of the LCD projectors works with "1024x768" resolution.  Add the following lines to Nvidia device section in /etc/X11/xorg.conf for 1024x768 resolution.

--- 

  Option "UseEdidFreqs" "False"

 ---

I have attached xorg.conf file for reference. Tested this on Thinkpad T61p which comes with Nvidia Quadro FX 570M chipset.

For projector setup. Copy the xorg.thinkpad.t61p.projector.conf  to /etc/X11/xorg.conf and restart the gdm or CDE login . You can remove/move the file once you are done with the projector setup.