On Mon, Jan 30, 2023 at 10:56 AM Linux kernel regression tracking (Thorsten Leemhuis) <regressions@xxxxxxxxxxxxx> wrote: > > [ccing a few people that CCed to the bug] > > Hi, this is your Linux kernel regression tracker. > > On 05.01.23 09:12, Thorsten Leemhuis wrote: > > [...] Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216885 : > > > >> David Roth 2023-01-04 20:37:22 UTC > >> > >> Created attachment 303526 [details] > >> Libinput record with G903 attached directly to USB > >> > >> Since > >> https://lore.kernel.org/linux-input/20220914132146.6435-1-hadess@xxxxxxxxxx/T/#u > >> my Logitech G903 has gained hi res support. While normally a good > >> thing, it seems that in this case it leads to generating one normal > >> REL_WHEEL with each REL_WHEEL_HI_RES event instead of just a couple > >> of REL_WHEEL_HI_RES, followed by the standard REL_WHEEL once a > >> notch/tick is reached. This leads to overly sensitive scrolling and > >> makes the wheel basically useless. > > Bastien, Benjamin, Jiri, that problem was reported 25 days ago now and > there is still no fix in sight afaics (please correct me if I'm wrong) > -- and based on the reports I've seen it seem quite a few people are > hitting it. Hence please allow me to ask: > > Wouldn't it be best to revert that change for now (both in mainline and > stable of course) and then reapply it once a fix for this problem is > available? Or Last I heard was that Bastien was actively trying to understand the problem. I do have a G903 here but it is lacking the feature the reporters have, and so I can not reproduce (there is likely a new firmware/model around). After a quick search on https://support.logi.com/hc/en-us/search#q=G903&s=all it seems that there are 2 G903: M-R0081 and M-R0068. I only own the 68 one which explains why I can not reproduce it. :( Cheers, Benjamin > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > -- > Everything you wanna know about Linux kernel regression tracking: > https://linux-regtracking.leemhuis.info/about/#tldr > If I did something stupid, please tell me, as explained on that page. > > >> Interestingly this only happens when the mouse is connected directly via > >> cable (PID:0xC091) and not via the Lightspeed wireless dongle > >> (PID:0x4087) where it will lead to correctly applying the times 8 > >> multiplier and the relevant set of HI_RES and REL_WHEEL event once a > >> notch is reached. > >> > >> I originally thought about patching the module/adding a param to simple > >> disable high res support in general, assuming this might be something > >> people might want to configure, but seeing that this can be "fixed" that > >> way I decided to hold off on the thought. > >> > >> However it seems like we'd need to trade one set of quirks for another, > >> so not sure what the correct approach might be. > >> > >> I'll attach some libinput debug logs when the issue happens. > > > > See the ticket for more details. > > > > BTW, let me use this mail to also add the report to the list of tracked > > regressions to ensure it's doesn't fall through the cracks: > > > > #regzbot introduced: 908d325e1665 > > https://bugzilla.kernel.org/show_bug.cgi?id=216885 > > #regzbot title: hid: overly sensitive scrolling with Logitech G903 that > > makes the wheel basically useless > > #regzbot ignore-activity > > > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > > -- > > Everything you wanna know about Linux kernel regression tracking: > > https://linux-regtracking.leemhuis.info/about/#tldr > > If I did something stupid, please tell me, as explained on that page. >
