Mouse lag in kernel v4.12.*

feriman · n00b Joined: 12 Feb 2017 Posts: 6

[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.

Hu · Administrator Joined: 06 Mar 2007 Posts: 23082

feriman: and when you disable that symbol, the lag ceases and there are no other side effects?

Jaglover · Posted: Fri Aug 18, 2017 2:50 am Post subject:

@feriman,

what hardware is this?
_________________
My Gentoo installation notes.
Please learn how to denote units correctly!

feriman · n00b Joined: 12 Feb 2017 Posts: 6

@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

Hu · Administrator Joined: 06 Mar 2007 Posts: 23082

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.

feriman · n00b Joined: 12 Feb 2017 Posts: 6

@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.

Hu · Administrator Joined: 06 Mar 2007 Posts: 23082

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.