bugtpb -- ThinkPad Buttons - Bugs: bug #16111, TPB stop working after while

 
 

bug #16111: TPB stop working after while

Submitted by:  None
Submitted on:  Thu 16 Mar 2006 09:55:19 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Open

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Wed 09 Aug 2006 10:24:34 AM UTC, comment #3:

Problem was soved look at this issue http://bugzilla.kernel.org/show_bug.cgi?id=6749

Anonymous
Tue 04 Jul 2006 07:06:01 PM UTC, comment #2:

Yes I have the same problem similarly only OSD doesnt seem to work. But it happens only when I resume from a suspend/hibernate. I am using the 2.6.16-r9 patched with Suspend2 sources.

Running the watch command nvram does not seem to change.

Only way to get it working is doing a system restart.

Anonymous
Tue 02 May 2006 07:11:31 PM UTC, comment #1:

Yes; I have had a very similar problem. However, I don't think it's a TPB problem. I have a T21 with the 2.6.something kernel. The problem is that after a time (like 5 or 10 min usually) the /dev/nvram (which TPB checks for button presses) stops changing when I push volume or brightness or any such special buttons. It seems like the nvram module has crashed or something.

When the nvram device is working properly I can see changes with: the command
'watch --differences=cumulative -n 0 xxd /dev/nvram'

Also when nvram stops chaning I can no longer swap to CRT. The volume, brightness, thinklight, and suspend still work but there is no on screen indicators. The switch to CRT, turn off backlight, and hibernate to disk buttons and fn's do not work.

Very odd that it should work so sporadically. After nvram fails I have found no way to get it working again other than to restart. rmmod nvram and modprobe nvram does not help.

Anonymous
Thu 16 Mar 2006 09:55:19 PM UTC, original submission:

I have old Thinkpad A21M and use tpb. With 2.4.x kernel without ACPI all works. But with 2.6.x and ACPI all works but after aprox 5min tpb stop responding i I strace tpb I don't see any wrong things. Have anybody the same experience ?

Anonymous

 

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