[Bug 1920573] Re: 20.10 Stylus input (wacom screen) instantly freezes OS

2021-03-25 Thread Joris Muller
Seems to be the same bug as reported in #1920682 https://bugs.launchpad.net/ubuntu/+source/libwacom/+bug/1920682 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1920573 Title: 20.10 Stylus input (waco

[Bug 1920682] Re: Lenovo x1 Yoga freeze after stylus touches the display

2021-03-25 Thread Joris Muller
As already mentioned before, booting on kernel 5.8.0-44 fixed the issue also on my system. I tried also with the 5.8.0-45 kernel to remove xserver-xorg-input-wacom package but still crash. There was no way to remove libwacom2 alone to test if it's the fallacious package, because it remove also

[Bug 1920682] Re: Lenovo x1 Yoga freeze after stylus touches the display

2021-03-25 Thread Joris Muller
I confirm also the issue on my ThinkPad X1 Yoga 3rd gen Worked like charm before last update. Current kernel is 5.8.0-45 generic. Freeze as soon as the sytlus approaches the screen. I tried to remove all wacom package without success (however, reading the previous post, bug seems to be on a ker

[Bug 818826] Re: backlight brightness control won't work in 2011 iMac 27"

2020-06-15 Thread Joris Muller
Found one easy solution (a least on Ubuntu 20.04) to implement manually solution by changing grub configuration. Edit /etc/default/grub To the parameter GRUB_CMDLINE_LINUX_DEFAULT add "acpi_backlight=vendor" The line should be GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" updat