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Touchscreen and stylus now working on HP Envy x360

The Fedora version on kernel 4.19.3 includes a patch allowing both stylus and touchscreen to properly run on AMD processor based HP touchscreen thanks to the combined effort from Hans, Lukas and Marc for finding the root cause and testing the fix.

A few scary moment on HP Envy x360 15-cp0xxx Ryzen 2500U was a conflicting IRQ handling due to possibly booting on Windows 10 used to get all feature parity to Linx counterpart i.e. Fedora 29 in this case. Fortunately, power off somewhat did the trick. Since then, both stylus and touchscreen run without a hitch.

A minor issue was the Gnome Settings does not display information of both devices due to the missing data from Elan driver thus meaning no configuration possible like assigning buttons and no possible way to test touchscreen. Additionally, Gnome Shell assumed the battery still at 1% capacity and the bug is filed for that reason.

Detected Stylus displayed with incorrect battery status

Nevertheless, the stylus with some configurating runs smooth on applications like Gimp and Inkscape. For the touchscreen, Firefox for Linux lack proper onscreen keyboard. That will be continued...
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