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On Mon, 7 Mar 2016 11:00:26 +1100 |
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Adam Carter <adamcarter3@×××××.com> wrote: |
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|
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> > 1. After successful boot, I've noticed, that buttons above the |
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> > touchpad[1] stopped working. Tried to debug the thing, but they do |
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> > nothing even under xev or in showkey - seems like they dead. Didn't find |
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> > anything interesting by searching the net. |
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> Longshot (since i've had one instance in the last few years where i need to |
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> rebuild xorg after a kernel update) have you tried rebuilding the |
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> xf86-input-* packages against the new kernel? |
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|
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Yep, that was the first thing, right after rebuilding 3rd party |
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modules, I've done. |
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|
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I've done a little test with Live USB with some popular desktop |
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distribution, and it turns out, those buttons doesn't work there |
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either. Not sure if it's a kernel bug, or something else. |
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|
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> > 2. This one is more annoying. After boot to the new shiny 4.x kernel, |
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> > devices connected via the usb seems to have aggressive power safe mode. |
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> > For example - if I typing for a while everything is fine, if I stop for |
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> > a couple of seconds, and then start to type, for approximately 2 seconds |
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> > there is no response from the device, and after that i can type again. |
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> > Note, that during those 2s no buffering is done, so whatever I'm typing |
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> > in this short period, is lost. Same goes to the mouse movement and |
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> > buttons. |
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> I haven't had much luck with USB power saving working in a useful way and |
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> leave it off. Strange its been enabled by default for you. |
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> |
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> cat /sys/bus/usb/devices/*/power/control will show you what the current |
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> settings are. |
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> |
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> The options are on/auto. |
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> |
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> "on" means that the device should be resumed and autosuspend is not allowed. |
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> |
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> so that's what you want. It can blanket set with; |
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> |
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> echo on | tee /sys/bus/usb/devices/*/power/control |
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> |
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> Or you could work out which devices are actually a problem and just "on" |
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> those particular ones. |
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|
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Actually, this was very useful. Thank you for the hint. I've created |
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simple script which gives me a device and power status next to it. |
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I've compared values from the distro I've mentioned above with the |
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values I get from the Gentoo system. It turns out that indeed all |
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devices are set to "auto". I've noticed either, that I have running |
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laptop mode (app-laptop/laptop-mode-tools), which was the one |
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responsible for setting all devices to "auto". Will investigate it a |
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bit further, if laptop-mode was the only one who change those values. |
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|
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Thanks. |
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|
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-- |
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-^- _ something is grinding the emptiness: |
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_ /O)_\// Tristesse de La Lune - Coriolis |
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(_(|__(_(_) grf. https://tormentedradio.com |