Opened 11 years ago

Closed 11 years ago

Last modified 11 years ago

#2519 closed bug (invalid)

Uninterruptible power supply beeps on Haiku boot or Haiku applications loading

Reported by: cebif Owned by: bonefish
Priority: normal Milestone: R1
Component: Drivers/TTY Version: R1/pre-alpha1
Keywords: Cc:
Blocked By: Blocking:
Has a Patch: no Platform: All


I have got a KI1000LCD Line Interactive UPS (KI Series) connected to serial port 1. Every time Haiku boots or I start a application it beeps continuously and at irregular intervals. When I disabled the serial port from the bios there was no beeping. When I started Haiku without the serial port disabled but in Safe Mode,it did not stop the beeping. When I say safe mode everything was selected. It does not seem to cause any real problems with Haiku performance but if there was a software driver for this UPS would this be causing problems?

Change History (5)

comment:1 by umccullough, 11 years ago

Probably a result of Haiku spitting out pages and pages of debug info to the serial port by default currently :)

I think you can turn this feature off in the kernel settings in the meantime, but I don't have that info in front of my right now.

comment:2 by bonefish, 11 years ago

Resolution: invalid
Status: newclosed

Please have a look at ~/config/settings/kernel/drivers/kernel (or data/settings/kernel/drivers/kernel in the source tree, if you build your own images). You can disable serial debug output or send it to another serial port.

comment:3 by cebif, 11 years ago

This is the content of my kernel file and the change I made:

serial_debug_output false

# disables serial debug output, default is enabled

#serial_debug_port 0

# possible values: <num>|<port> # serial interface number (as enumerated by the BIOS) or the # base port of the serial interface to be used for kernel # debug output and the kernel debugger # default is 0 (COM1)

#serial_debug_speed 57600

# possible values: <9600|19200|38400|57600|115200> # default is 115200

With the hash symbol deleted before the first line there is still a little bit of beeping but much less. For the line #Serial_debug_port 0 I also tried removing the hash and changing port number from 1 to 0, but that still did not stop all beeping so I put the hash symbol back in front.

comment:4 by cebif, 11 years ago

I re enabled serial port debug and switched the serial debug output to serial port 2 and that stopped all beeping.

comment:5 by axeld, 11 years ago

The boot loader currently also spits out some debug info over the serial line.

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