Bug 90592 - ThinkPad T40 Hangs On Resume
ThinkPad T40 Hangs On Resume
Product: Red Hat Linux
Classification: Retired
Component: apmd (Show other bugs)
i686 Linux
medium Severity medium
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Assigned To: Bill Nottingham
Jay Turner
Depends On:
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Reported: 2003-05-09 20:41 EDT by ammulder
Modified: 2015-01-07 19:05 EST (History)
2 users (show)

See Also:
Fixed In Version: 3.0.2-19
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2003-05-19 16:26:21 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description ammulder 2003-05-09 20:41:03 EDT
Description of problem:
I just laid hands on an IBM ThinkPad T40.  About half the time I suspend it from
Linux, when I resume, it locks up.  Sometimes I see X-Windows but I am unable to
type or interact with it in any way.  Some times the screen backlight turns on
but nothing is displayed.  In either case, it does not respond to
Crtl-Alt-Backspace or Ctrl-Alt-Delete.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Start X-Windows
2. Open Terminal
3. su root
4. apm -s
5. Close laptop
6. Open laptop
7. Laptop attempts to resume
Actual results:
either backlight turns on but nothing is displayed, or X-Windows desktop appears
but I am unable to interact with it.

Expected results:
System is usable

Additional info:
Comment 1 Bill Nottingham 2003-05-18 20:25:23 EDT
Is screen blanking turned on in the BIOS? Try turning it off, if so.
Comment 2 ammulder 2003-05-19 08:04:50 EDT
Actually, the problem seemed to be resolved by unloading the sound driver during
suspend and reloading during resume.  The flag for this in /etc/sysconfig/apmd
worked for this except the sound driver (i810_audio) needed to be added to the
list of sound modules.

On a related note, I have noticed that screen blanking causes terminal problems
with the Red Hat 9 installer (once blanked, it never wakes up again), but I
guess that's a different issue.
Comment 3 Bill Nottingham 2003-05-19 16:26:21 EDT
Oh, *YUK*. A hardcoded list of sound modules? That's so broken.

Fixed better in 3.0.2-19.

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