[Suspend2-devel] Interesting quirk with Ubuntu and the synaptics driver - and s2r question

[Brad Campbell]

Bernard Blackham wrote:
>> brad at bklaptop2:~$ synclient -l
>> Can't access shared memory area. SHMConfig disabled?
>>
>> I'm sure this is a quirk with X or the driver and not really suspend2 related, but I was wondering 
>> if someone else could reproduce this behavior before I go and find out where to log a bug..
> 
> I'm running a backported 2.2.6 to Ubuntu's 2.6.15, and I can't reproduce
> what you're seeing. I've enabled SHMConfig in my xorg config
> (7.0.0-ubuntu45), and can still do synclient -l after a suspend resume.
> Not useful to you, but might serve as another data point. From a brief
> gaze at the source, the SHM segment is allocated when DeviceInit() is
> called and deallocated on DeviceClose(). (These calls are logged into
> Xorg.0.log, so verifying DeviceClose() isn't being called should
> eliminate one path).

Ok, as I suspected, this is not a suspend error. Simply that I sometimes start an extra X server for 
a fullscreen VNC session or to do presentations. Of course it ruins the SHM area just the same as 
starting a dummy X server does to re-init the card if you use the default config file.

Interestingly enough, the answer was lurking in the suspend2 bugzilla :)
http://bugzilla.suspend2.net/show_bug.cgi?id=138

Brad
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