Comment 1 for bug 39817

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Alan Pope 🍺🐧🐱 πŸ¦„ (popey) wrote :

Further to this I have performed some more tests:

http://popey.com/istanbul/demo1.ogg

alan@hactar:~$ file demo1.ogg
demo1.ogg: Ogg data, Theora video
alan@hactar:~$ ls -ltr demo1.ogg
-rw-r--r-- 1 alan alan 114351 2006-06-12 22:39 demo1.ogg

You can see the issue when you play back the video above. I start the video "on the minute" with seconds showing on the clock. Time passes quickly in the video. Also note the mouse cursor is yellow.

Before recording I killed powernowd and "echo 1024 > /proc/sys/dev/rtc/max-user-freq" as root, as this was suggested when playing back video to stabilise timing. Neither made any difference.

The PC on which I am performing this is a 2.1GHz Dell XPS Inspiron using the binary nvidia drivers.

I then attempted to test using the same computer but with the open nv video driver.

http://popey.com/istanbul/demo2.ogg

alan@hactar:~$ file demo2.ogg
demo2.ogg: Ogg data, Theora video
alan@hactar:~$ ls -ltr demo2.ogg
-rw-r--r-- 1 alan alan 118750 2006-06-12 22:51 demo2.ogg

I started this video at 30 seconds past but nothing was captured for a few seconds, then it skips chunks, not recording. Possibly the nv driver can't keep up where the binary/closed one can?

Hope this extra information helps.

Cheers,
Al,