<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Different implementations may use different code paths in server/drivers so it's no issue in gnome does not necessarily mean a bug in xfce.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">As a start, I guess best would be to ensure that the word "lock-up" is correct to describe the problem.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> - Can you move the mouse pointer?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> - Do other windows refresh (e.g. the clock, animations, etc.)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"> - Can you connect to the box remotely via ssh (assuming you have sshd enabled)</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">It may that one app has an active grab on your pointer/keyboard and no other application can interact then, but that would not be a lock-up.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Cheers,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Olivier</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 30 March 2016 at 07:06, brian <span dir="ltr"><<a href="mailto:brian@meadows.pair.com" target="_blank">brian@meadows.pair.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Tue, 29 Mar 2016 11:15:10 -0500, you wrote:<br>
<br>
>+1 on it being worth moving to 4.12. If this is an XFCE bug you've<br>
>identified, I _really_ doubt it exists in the current stack. It may also<br>
>not technically be a bug if it's related to external things that changed<br>
>in the meantime, whereas that branch is no longer the main effort.<br>
><br>
</span>Well, I downloaded the files to install the GNOME desktop, and also a<br>
couple of live images. Then I spent a day with intermittent use of the<br>
PC using Chromium as my browser, and got not a single crash.<br>
<br>
But OK, I will take the advice of you both, and see about installing<br>
4.12. For reasons I've mentioned previously, I simply can't do this by<br>
moving to Sid, so it will have to be a case of me trying to build and<br>
install XFCE myself. Since I had a day with no crash using Chromium,<br>
there's somewhat less impetus, I think I'll set up a virtual machine<br>
to have a play with.<br>
<br>
I'll report back in a few days (again, the downloads will take me<br>
time, everything must be done between 0200 and 0700).<br>
<br>
Brian.<br>
<span class=""><br>
<br>
>Olivier Fourdan wrote:<br>
>><br>
>><br>
>> On 29 March 2016 at 18:05, brian <<a href="mailto:brian@meadows.pair.com">brian@meadows.pair.com</a><br>
>> <mailto:<a href="mailto:brian@meadows.pair.com">brian@meadows.pair.com</a>>> wrote:<br>
>><br>
>><br>
>> I did try leaving the PC for an extended time (around 30 minutes) but<br>
>> it was still non-responsive. There's no way for me to navigate<br>
>> anywhere when it happens, neither keyboard nor mouse produce any<br>
>> effect.<br>
>><br>
>><br>
</span>>> ? You cannot really debug such problems from the system itself, best<br>
>> to to ssh to the machine from another box and try to see if a proc?ess<br>
<div class="HOEnZb"><div class="h5">>> is hogging on the CPU for example.<br>
>><br>
>> It could also be that one X11 app is having an active grab on the<br>
>> pointer and keyboard, thus preventing any other user interaction (that<br>
>> appears like a lockup except that the screen still refreshes, the<br>
>> mouse pointer still moves, etc.)<br>
>><br>
>> Also, xfce 4.10 is a bit old (even more considering the pace of xfce<br>
>> releases...) - But it's next to impossible to root cause such issues<br>
>> remotely, you need to first investigate on your side.<br>
>><br>
>> Cheers,<br>
>> Olivier<br>
>><br>
>><br>
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