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Hi,
recently I'm experiencing a very wierd problem. While watching video (both online videos and offline using video players) the video becomes very slow and the CPU usage goes near 100%. the `top` command shows that the high cpu usage is for `X`. It is happening completely random.
I am using i3 window manager. I have no idea what is the cause of the problem and how I should search for the cause. I've checked some threads but most of them seemed irrelevant to my problem.
I am willing to investigate the problem if someone shows me how and I will post relevant parameteres or command outputs about my system here(currently I have no idea what I should post).
thank you very much
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More info:
The graphic card is: ATI radeon x1400 and I am using the opensource driver.
Last edited by amiragha (2014-02-12 17:27:49)
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Tell us what graphics card and what graphic drivers are you using.
Are you sure it's random and doesn't only happen with e.g. hi-resolution video - 720p and up?
Are there any relevant messages in the logs or in systemd's journal?
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I am sure that I'm not using high resolution videos(because of my internet speed for the online case) and also the videos are ok for about 5 minutes or sometimes more.
where can I check the logs and systemd journal?
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It's /var/log/Xorg.0.log and see https://wiki.archlinux.org/index.php/Systemd#Journal
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the Xorg.0.log file and the output of journalctl command doesn't change when the problem occurs. I have also noticed that the problem is not limited to playing video, today it happened while checking facebook.
Is there anything else I can do to find out what causes this problem?
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