Difference between revisions of "RPi Bugs"
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= Hardware = | = Hardware = | ||
− | * The current | + | * The current R-Pi firmware limits users to 2 hubs and 14 ports. |
− | * [ | + | * Some Hardware is unsupported [[RPi_VerifiedPeripherals|link]] |
+ | * The analog sound output chip suffers from a clicking problem when it awakes from sleep. | ||
+ | : This is caused by the quiet signal sitting at half rail when the chip is active and the signal | ||
+ | : sitting at ground when the chip is asleep. During the wake/sleep process the analog output is rapidly | ||
+ | : driven between these two levels causing an annoying, but not damaging, click. | ||
+ | : Recent versions of software drivers have accounted for this problem by being far less aggressive in putting | ||
+ | : the audio DAC to sleep. | ||
= Software = | = Software = | ||
Line 24: | Line 30: | ||
== Firmware == | == Firmware == | ||
* tracked on [https://github.com/raspberrypi/firmware/issues github] | * tracked on [https://github.com/raspberrypi/firmware/issues github] | ||
− | * 73 threads on [https://www.google.ca/#hl=en&q=site%3Ahttp%3A%2F%2Fwww.raspberrypi.org%2FphpBB3+%22kevent+2+may+have+been+dropped%22 kevent 2 may have been dropped] (possible [http://www.raspberrypi.org/phpBB3 | + | * 73 threads on [https://www.google.ca/#hl=en&q=site%3Ahttp%3A%2F%2Fwww.raspberrypi.org%2FphpBB3+%22kevent+2+may+have+been+dropped%22 kevent 2 may have been dropped] (possible [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=99463#p99463 solution]) |
* 55 threads on [https://www.google.ca/#hl=en&q=site%3Ahttp%3A%2F%2Fwww.raspberrypi.org%2FphpBB3+%22error+-71%22 error -71] (see the [[Rpi_USB_check-list]]) | * 55 threads on [https://www.google.ca/#hl=en&q=site%3Ahttp%3A%2F%2Fwww.raspberrypi.org%2FphpBB3+%22error+-71%22 error -71] (see the [[Rpi_USB_check-list]]) | ||
{{Template:Raspberry Pi}} | {{Template:Raspberry Pi}} |
Revision as of 20:40, 24 April 2013
See R-Pi_Troubleshooting for problems that are not bugs.
Contents
Hardware
- The current R-Pi firmware limits users to 2 hubs and 14 ports.
- Some Hardware is unsupported link
- The analog sound output chip suffers from a clicking problem when it awakes from sleep.
- This is caused by the quiet signal sitting at half rail when the chip is active and the signal
- sitting at ground when the chip is asleep. During the wake/sleep process the analog output is rapidly
- driven between these two levels causing an annoying, but not damaging, click.
- Recent versions of software drivers have accounted for this problem by being far less aggressive in putting
- the audio DAC to sleep.
Software
(excluding non-official distribution specific bugs)
OS
Kernel
- tracked on github
Firmware
- tracked on github
- 73 threads on kevent 2 may have been dropped (possible solution)
- 55 threads on error -71 (see the Rpi_USB_check-list)
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