What is sqx_mixer?
 

After laying idle for about 20 minutes, my N900 refused to wake up. The keyboard and display backlight lit up, but nothing appeared on the display. As far as I know, I had one browser window open, maybe two. Other than that, nothing else. The last thing I know, I stopped a Timeshop alarm and closed the app, then put the device on the shelf.

Always reluctant to do a hard reset, I logged in via SSH and ran top. Right on the top were [sqx_mixer] at 83.2% and /usr/sbin/browserd at 15.4%. Killing sqx_mixer (by PID) did not work - it was there when I ran top again, with the same PID. Killing browserd had only the effect of boosting [sqx_mixer] to 98%.

I finally got my phone back by rebooting in SSH. After the reboot, sqx_mixer did not appear in the ps output. But I would still like to know what it is. find / -iname *sqx* yielded nothing. Nor did a TMO search for sqx_mixer or sqx. Duckduckgo search yielded some water mixers and a lot of variations on sex and mixer.

So what is it? I know about the SQX abbreviation, but it does not seem to fit.

Re: What is sqx_mixer?
 

@pichlo,

It's SGX not SQX. sgx_mixer is AFAIK part of the PowerVR graphics driver.

Re: What is sqx_mixer?
 

I think you ran into this threaded here.
Thanks to reinob for pointing me into right remembering. I ran once into the same/similar and could not solve it :( So I thought of HW problems and defect of my beloved (now due to 'no telephony functions' gone) one. But it cured itself somehow, do not remember anymore how (really sorry :().
Did you try full power cycle (sometimes cures weird HW behaviour ;) really! :)
Good luck (worst case scenario: reflash :eek: but ... )

--
Or maybe have a look here (in case of adblock installed which gave me also headaches with CUP server administration site: 'add printer' ;))

Re: What is sqx_mixer?
 

Hmm, thanks both of you. I could have sworn I checked it several times but a half blind old fart as I am, I cannot 100% guarantee that I did not mix up q and g. It has rolled off my ash history since then so can't even verify. I will just have to wait until it happens again. But I am absolutely sure it was s?x_mixer and not s?x_misr.

No full power cycle. It was only the UI not responding, SSH worked fine. So I just rebooted by typing 'reboot' in the SSH CLI. After the reboot, everything worked fine again.

Re: What is sqx_mixer?
 

Sdl_mixer comes also to my mind. It's used by some games but I dont see how you could mix up sdl with sqx :P