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100% CPU usage and game crash on exit due to SDL sound frequency #3294

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DorpsGek opened this issue Nov 2, 2009 · 3 comments
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100% CPU usage and game crash on exit due to SDL sound frequency #3294

DorpsGek opened this issue Nov 2, 2009 · 3 comments
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flyspray This issue is imported from FlySpray (https://bugs.openttd.org/)

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@DorpsGek
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DorpsGek commented Nov 2, 2009

Jafinto opened the ticket and wrote:

When I run any build > 17140 the game uses 100% of my CPU, while it otherwise hovers around the 12%. When I try to close the game, it hangs. Sounds do not play normally.

I can fix this by setting the SDL frequency to 11025 (I'm using the standard sounds).

My system:
Ubuntu 9.10 Karmic Koala
AMD Phenom II X4 810 Processor
4 GB RAM
AMD Radeon HD 3300 (integrated)
Creative X-Fi Platinum

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Reported version: trunk
Operating system: Linux

This issue was imported from FlySpray: https://bugs.openttd.org/task/3294
@DorpsGek
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DorpsGek commented Nov 3, 2009

SmatZ wrote:

From known-bugs.txt:

Extreme CPU usage when using SDL and PulseAudio
OpenTTD can be extremely slow/use a lot of CPU when the sound is
played via SDL and then through PulseAudio's ALSA wrapper. This setup
seems to be the default configuration for Ubuntu 9.04 and later. This
issue can be solved by installing the 'libsdl1.2debian-pulseaudio'
package from Ubuntu's Universe repository.

(yes, I know it's not fair as this was added to known-bugs.txt today)

Does that help?

This comment was imported from FlySpray: https://bugs.openttd.org/task/3294#comment6901

@DorpsGek
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DorpsGek commented Nov 3, 2009

Jafinto wrote:

It does fix the high CPU load and the crash on exit, but the sound quality is noticeably worse.

Anyway, thanks for workaround. I think I'll just keep the frequency on 11025 for now, until the new sound set will be ready.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3294#comment6902

@DorpsGek
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DorpsGek commented Nov 3, 2009

Rubidium closed the ticket.

Reason for closing: Bug in external library

libSDL->SDL-ALSA backend->PulseAudio virtual ALSA device->PulseAudio causes the problem. Switch to either the SDL-PulseAudio backend or remove PulseAudio.

This comment was imported from FlySpray: https://bugs.openttd.org/task/3294

@DorpsGek DorpsGek closed this as completed Nov 3, 2009
@DorpsGek DorpsGek added Core flyspray This issue is imported from FlySpray (https://bugs.openttd.org/) labels Apr 7, 2018
This was referenced Apr 7, 2018
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@nielsmh nielsmh mentioned this issue Feb 22, 2021
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