[ltp] T61 locking up

John Jason Jordan linux-thinkpad@linux-thinkpad.org
Sun, 21 Sep 2008 21:26:48 -0700


On Sun, 21 Sep 2008 20:52:33 -0700
John Jason Jordan <johnxj@comcast.net> dijo:

> But I still think my "lockup" problem is related to suspend because the
> symptoms are just about identical. 
> 
> The "lockups" never happen when the screensaver is running; only when
> the screensaver has stopped and it has gone to a black screen. And even
> then it still resumes 90% of the time just by moving the mouse or
> hitting a key. It's that one time out of ten when I am "locked up." And
> that is the maddening part. It is so hard to troubleshoot this because
> I can make some change hoping it will solve the problem, but I have to
> wait days to see if it worked.

OK, further improvements. After much more searching I found a link that
said:
-------
To get suspend/resume to work with restricted nvidia driver i got the solution from
http://david.goodlad.ca/2008/3/14/suspend-hibernate-on-lenovo-t61.
    * sudo gedit /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-lenovo.fdi
    * replace the two merge elements in: 

      <!-- T61 (8895), intel card 32bit works with S3_MODE, but 64bit
needs VBE_MODE T61p (6460), does not work with the NVidia driver-->
      <match key="system.hardware.product"
prefix_outof="8895;8897;6457;6460;6464;6465"> <merge
key="power_management.quirk.s3_bios" type="bool">true</merge> <merge
key="power_management.quirk.vbemode_restore" type="bool">true</merge>
</match>

     to get:

      <!-- T61 (8895), intel card 32bit works with S3_MODE, but 64bit
needs VBE_MODE T61p (6460), does not work with the NVidia driver-->
      <match key="system.hardware.product"
prefix_outof="8895;8897;6457;6460;6464;6465"> <merge
key="power_management.quirk.s3_mode" type="bool">true</merge> <merge
key="power_management.quirk.s3_bios" type="bool">false</merge> <merge
key="power_management.quirk.save_pci" type="bool">true</merge> </match>

    * reboot and test Fn-F4 and wake up with Fn 
-----

I did as instructed above. After rebooting I tried closing the lid,
but, as before, it did not send me into suspend. Also as before,
clicking on the Gnome panel shutdown icon and "suspend" does suspend
the computer. But now Fn+F4 does get me back from suspend. The hard
drive light runs forever, but eventually I get a login screen and I can
get back. 

Some questions:

1) I thought "suspend" meant "suspend to RAM." Why does the hard drive
light run forever before I get back?
2) Why do I have to log in again?

I am hoping that now that I can get back from suspend I will have a way
to get back from my "lockup" problem. Better yet, maybe the problem
will go away completely.

Thanks to all for your patience in reading this saga.