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Mouse lag in kernel v4.12.*
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feriman
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Joined: 12 Feb 2017
Posts: 6

PostPosted: Thu Aug 17, 2017 10:55 am    Post subject: Mouse lag in kernel v4.12.* Reply with quote

[Moderator note: this was originally an untitled response to already solved topic [SOLVED]Keyboard not responding after update to 4.12 kernel.. Based on the responses in the resulting subthread, the issue appears unrelated, so I moved it to a new thread and assigned a title. -Hu]

After set CONFIG_USB_PCI in Kernel 4.12.* I have mouse pointer lags when I running something heavy like Chromium and moving mouse pointer.
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Hu
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Joined: 06 Mar 2007
Posts: 13607

PostPosted: Fri Aug 18, 2017 1:17 am    Post subject: Reply with quote

feriman: and when you disable that symbol, the lag ceases and there are no other side effects?
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Jaglover
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Joined: 29 May 2005
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Location: Saint Amant, Acadiana

PostPosted: Fri Aug 18, 2017 2:50 am    Post subject: Reply with quote

@feriman,

what hardware is this?
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Please learn how to denote units correctly!
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feriman
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Joined: 12 Feb 2017
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PostPosted: Fri Aug 18, 2017 8:23 am    Post subject: Reply with quote

@Hu
When I disable that symbol I have no working keyboard and mouse as topic starter's case.

@Jaglover
lspci -k https://pastebin.com/JEk6jCM8
lsusb https://pastebin.com/v5XG2gqf
dmesg -l err,warn https://pastebin.com/FQPqcsVm
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Hu
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PostPosted: Sat Aug 19, 2017 12:56 am    Post subject: Reply with quote

If your mouse doesn't work when the symbol is off, how do you know that setting the symbol to on causes your mouse to lag? You can't test for lag when the mouse does not work.
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feriman
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PostPosted: Sat Aug 19, 2017 9:17 am    Post subject: Reply with quote

@Hu
I'm sorry, it's my suppose only, but I have no any issues before this setting appears in 4.12.* kernels. I have tried to make 4.12.5 kernel using my current 4.9.34's kernel config using 'make olddefconfig' with and without 'make localmodconfig', 'make defconfig' with same results for my mouse. This mouse 'lag' is appreciable when i.e. I running Chromium opening last session with about 5 tabs with 'heavy' pages and moving mouse in this time.
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Hu
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Posts: 13607

PostPosted: Sat Aug 19, 2017 3:50 pm    Post subject: Reply with quote

feriman: since your problem seems to be unrelated to the use of this symbol (but was only exposed when setting this symbol so that your mouse worked at all), I moved your post and all the responses to it into a new thread. Since you responded to a previously solved thread, some people who might otherwise be able to help you might have skipped the thread entirely, believing there were no problems left to solve.
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