<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - The cursor "jump" sometimes" href="https://bugs.freedesktop.org/show_bug.cgi?id=94910#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - The cursor "jump" sometimes" href="https://bugs.freedesktop.org/show_bug.cgi?id=94910">bug 94910</a> from <a class="email" href="mailto:dudlx@hotmail.com" title="Dudley Du <dudlx@hotmail.com>"> Dudley Du</a> <pre>Hi, After communicated with Jeremy, I got the following information: product_id: CYTRA-101008-00 firmware_version: 2.0 baseline <max, min>: 103 93 Based on the reported baseline values, it's not bad, it should not affect the performance of the trackpad device. And after the v2.0 firmware image, I found there was a v2.1 firmware that have the FH parameter turned to improve the noise immunity. Could you try if this v2.1 firmware image can help on this cursor jump issue. Steps to update with the v2.1 firmware image: 1) Make the Chromebook enter development mode; 2) Copy the v2.1 firmware image to the /lib/firmware/ on the system. # mount / -o rw,remount # mv /lib/firmware/cyapa.bin /lib/firmware/cyapa_v2.0.bin # cp /path/to/v2.1_firmware_image.bin /lib/firmware/cyapa.bin 3) Force to update the firmware image. # echo cyapa.bin > /sys/bus/i2c/devices/i2c-7/7-0067/update_fw 4) After the update, you can double check the baseline (normally, should be no problem). # cat /sys/bus/i2c/devices/i2c-7/7-0067/baseline 5) If the baseline is not good, can force the trackpad device to re-calibrate the trackpad device. This operation can be done multi-time until get good baseline (normally, at most two). # echo 1 > /sys/bus/i2c/devices/i2c-7/7-0067/calibrate If the v2.1 firmware has no help on the cursor jump issue, or any other driver issue of this trackpad device, please freely send email to Dudley Du <<a href="mailto:dudl@cypress.com">dudl@cypress.com</a>>. And I have reported this issue to our firmware team. But since the Gen3 trackpad device has out of life, so I'm not sure if there would be fully support from the firmware team. I will update any information in this report if there any. Thanks, Dudley</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>