<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - hwdb: Logitech, Inc. RX 250 Optical Mouse DPI data (older model)" href="https://bugs.freedesktop.org/show_bug.cgi?id=87435#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - hwdb: Logitech, Inc. RX 250 Optical Mouse DPI data (older model)" href="https://bugs.freedesktop.org/show_bug.cgi?id=87435">bug 87435</a> from <a class="email" href="mailto:phomes@gmail.com" title="Thomas H.P. Andersen <phomes@gmail.com>"> Thomas H.P. Andersen</a> <pre>That sounds reasonable. I was working on a patch for mouse-dpi-tool to show the frequencies in a histogram. If we only really need the max frequency then current code is fine. In my testing the mouse would use 142.9Hz ~90% of the time. I could not find any specific steps to trigger the higher or lower frequencies. I guess the user just has to move the mouse for a while and hope we have found the max? When measuring I used a blank piece of paper with some lines to indicate the distance I want to move. For laser mice I usually get a slightly higher dpi than the mouse was specified for. E.g. 855 from a mouse claiming to do 800. For the optical mice I got a lot worse dpi. ~200 dpi less than the spec for my case. Simply drawing a lot of doodles with a pen on the paper helps. For all the mice I tested I was able to find an advertised dpi on the internet. I just tested that I could get reasonably close to that dpi with your tool and then used the advertised value. Does that make sense? Nitpick: the tool truncates the frequency when creating the hwdb entry. So for 142.9Hz it will use xxx@142.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>