[ltp] Re: T20 with Debian 2.6.24: Won't return from suspend
Bill Andrus
linux-thinkpad@linux-thinkpad.org
Mon, 15 Sep 2008 11:32:58 -0400
--0__=0ABBFE56DFC718F78f9e8a93df938690918c0ABBFE56DFC718F7
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: quoted-printable
linux-thinkpad-admin@linux-thinkpad.org wrote on 09/14/2008 01:53:15 PM=
:
> [ltp] Re: T20 with Debian 2.6.24: Won't return from suspend
>
> Greetings,
>
> Thanks for the replies. I waited and got another failure to
> return, so I can give a little more information:
>
>
> > What do you mean by "it does not return"?
> It does not return to operation when I press the power button. Some
> lights flash briefly, then go out, and nothing more happens. Of the
> six lights at the left of the power button, I think it's just the
> disk access light that flashes briefly, but nothing more. The only
> light on at that point is the battery light, over to the lower right
> of the screen. On a successful return, all the lights stay lit, and
> the computer boots up.
> I just suspended to disk yesterday, and had a failure to return, so
> I pulled the power cord. This morning it booted again, and resumed
> the session: in other words, it restored the system successfully and
> did not boot completely from scratch.
>
This actually sounds like a hardware problem, where the processor or
graphics chip assembly is becoming unsoldered from the system board. U=
Tube
has a neat video with instructions on how to press on the system board =
with
the keyboard lifted and confirm the source of the problem, and others a=
bout
how to use a hot air gun to reflow the solder to remedy it. I have th=
ree
system boards rescued from the junk pile using the technique, and a fou=
rth
yet to be fully cured.
> - Yes the symptoms sound like what you describe for Blink-of-Death.
> Only the battery light stays on, and goes off when I pull the power c=
ord.
This behavior is consistent with the ATI Graphics Bug, where the PCB
carrier is becoming unsoldered from the main system board. Try pressin=
g
firmly down on the keyboard plastic thin strip between the space-bar an=
d
trackpoint buttons, on the left end of it. If you hit power on and it =
then
comes up normally, you got the bug.
Bill Andrus
"The trouble with programmers is that you can never tell what a program=
mer
is doing until it's too late. (Seymour Cray)"=
--0__=0ABBFE56DFC718F78f9e8a93df938690918c0ABBFE56DFC718F7
Content-type: text/html; charset=US-ASCII
Content-Disposition: inline
Content-transfer-encoding: quoted-printable
<html><body>
<p><tt>linux-thinkpad-admin@linux-thinkpad.org wrote on 09/14/2008 01:5=
3:15 PM:<br>
<br>
<br>
> [ltp] Re: T20 with Debian 2.6.24: Won't return from suspend</tt><b=
r>
<tt>></tt><br>
<tt>> Greetings,<br>
> <br>
> Thanks for the replies. I waited and got another fail=
ure to <br>
> return, so I can give a little more information:<br>
> <br>
> <br>
> > What do you mean by "it does not return"?<br>
> It does not return to operation when I press the power button. Som=
e <br>
> lights flash briefly, then go out, and nothing more happens. Of th=
e <br>
> six lights at the left of the power button, I think it's just the =
<br>
> disk access light that flashes briefly, but nothing more. The only=
<br>
> light on at that point is the battery light, over to the lower rig=
ht<br>
> of the screen. On a successful return, all the lights stay lit, an=
d <br>
> the computer boots up. <br>
> I just suspended to disk yesterday, and had a failure to return, s=
o <br>
> I pulled the power cord. This morning it booted again, and resumed=
<br>
> the session: in other words, it restored the system successfully a=
nd<br>
> did not boot completely from scratch.<br>
></tt><br>
<br>
<tt>This actually sounds like a hardware problem, where the processor o=
r graphics chip assembly is becoming unsoldered from the system board. =
UTube has a neat video with instructions on how to press on the s=
ystem board with the keyboard lifted and confirm the source of the prob=
lem, and others about how to use a hot air gun to reflow the solder to =
remedy it. I have three system boards rescued from the junk pile=
using the technique, and a fourth yet to be fully cured.</tt><br>
<tt> <br>
> - Yes the symptoms sound like what you describe for Blink-of-Death=
. <br>
> Only the battery light stays on, and goes off when I pull the powe=
r cord.<br>
</tt><br>
<tt>This behavior is consistent with the ATI Graphics Bug, where the PC=
B carrier is becoming unsoldered from the main system board. Try =
pressing firmly down on the keyboard plastic thin strip between the spa=
ce-bar and trackpoint buttons, on the left end of it. If you hit =
power on and it then comes up normally, you got the bug. </tt><br>
<br>
<br>
<tt> Bill Andrus</tt><br>
<tt><br>
</tt>"The trouble with programmers is that you can never tell what=
a programmer is doing until it's too late. (Seymour Cray)"<tt><br=
>
</tt></body></html>=
--0__=0ABBFE56DFC718F78f9e8a93df938690918c0ABBFE56DFC718F7--