# Under rc3 choosing custom kit causes startup errors

**URL:** <https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161>\
**Category:** Using Zynthian\
**Created:** [August 14, 2019, 12:43am UTC](https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161 "2019-08-14T00:43:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ivanmonterosso](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/ivanmonterosso/32/503_2.png) [@ivanmonterosso](https://discourse.zynthian.org/u/ivanmonterosso)\
**Post date:** [August 14, 2019, 12:43am UTC](https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161/1 "2019-08-14T00:43:58Z")

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hi,  
anyone reported bad startups after selecting custom kit on webconf and changing some audio parameter?  
i usually changed or simply tried different buffer size and/or sample rate to minimize xruns on complex sounds, but now zynthian becomes unresponsive with blank screen.

i checked with ssh and during error it says  
DEBUG:root:WAITING FOR STOP LOADING …  
if i set audio defaults or simply return to kit choice, everything turn fine.  
by now i’m using Rc3 zynthian os on a V1 Zynthian

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**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\
**Post date:** [August 14, 2019, 1:35am UTC](https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161/2 "2019-08-14T01:35:36Z")

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Could you send the full log? Thanks …

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**Author:** ![ivanmonterosso](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/ivanmonterosso/32/503_2.png) [@ivanmonterosso](https://discourse.zynthian.org/u/ivanmonterosso)\
**Post date:** [August 14, 2019, 1:49am UTC](https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161/3 "2019-08-14T01:49:24Z")

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Sure, as soon as possible

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**Author:** ![ivanmonterosso](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/ivanmonterosso/32/503_2.png) [@ivanmonterosso](https://discourse.zynthian.org/u/ivanmonterosso)\
**Post date:** [August 14, 2019, 9:45pm UTC](https://discourse.zynthian.org/t/under-rc3-choosing-custom-kit-causes-startup-errors/3161/4 "2019-08-14T21:45:21Z")

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> [@jofemodo](#):
>
> Could you send the full log? Thanks …

ok, it’s quite long… forum engine allows less characters… must put it on a doc.[ssh log custom kit selection and audio parameter chg.rtf](https://discourse.zynthian.org/uploads/short-url/8hpLHWPFafiNNMbVgXUnMCJqPg5.rtf) (54.5 KB)

i just changed buffer size, from 256 to 384. nothing more.

After this, these are the issues related to log i sent:

- blank display.
- just now refused to reboot from webconf. must execute from ssh.
- no sounds (with last state snapshot loaded i should expect…)  
ssh and webconf communications are working. in my case i’m using wired ethernet.

Just to be precise, this issue happens not only with my custom changes,but if i choose any other audio preset.