On 06/14/2015 06:04 PM, James Cameron wrote:
On Sun, Jun 14, 2015 at 10:10:30AM -0500, Larry Finger wrote:
To address your problem, power saving does not work correctly on
this device. That is why there are numerous posts on the web telling
people to use ips=0. It seems that Ubuntu people never look at
anything but the Ubuntu literature; however, I'm sure that I posted
this "suggestion" there as well. The Realtek group is currently
rewriting the entire dynamic management code for all their drivers.
When complete, this should improve performance and should help the
power-save condition. No, I do not know when the new code will be
ready, or how much improvement it will make.
Thanks for summary.
OLPC is also seeing the issue. Power saving mode impacts battery run
time; one of our design goals. ips=0 seems to solve with 3.19, but
not fully with 4.1-rc7; still some periods of packet loss.
I offer to test any rtl8723be changes.
Please do a bisection between 4.1-rc7 and 3.19.
Larry
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