[Bug 1871394] Re: modeset: Loss of VGA signal (ast2500) on login

2020-04-09 Thread Chris Sheppard
I get the same behavior and many of the same syslog messages when I boot to XUbuntu, which does not rely on mutter. I am still investigating the kernel bug you referred me to. Thanks. ** Attachment added: "Xubuntu does not rely on mutter, but exhibits the same beahvior and similar syslog

[Bug 1871394] Re: modeset: Loss of VGA signal (ast2500) on login

2020-04-08 Thread Daniel van Vugt
Oh, actually this might be a mutter bug or even a kernel bug related to this: https://gitlab.gnome.org/GNOME/mutter/-/issues/182 ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #182 https://gitlab.gnome.org/GNOME/mutter/-/issues/182 ** Changed in: mutter (Ubuntu) Status:

[Bug 1871394] Re: modeset: Loss of VGA signal (ast2500) on login

2020-04-08 Thread Chris Sheppard
Ubuntu 18.04 using Wayland: The monitor connected to the AST2500 VGA has no signal during and after login. "xrandr -q" shows both devices are active. They are listed as XWAYLAND0 and XWAYLAND1. Ubuntu desktop's "Display configuration" window shows both monitors are active. I can move the

[Bug 1871394] Re: modeset: Loss of VGA signal (ast2500) on login

2020-04-07 Thread Daniel van Vugt
The attached Xorg log files seem to show that it knows about both GPUs and it claims to be using both... 1. Are you able to work around the problem by logging into "Ubuntu on Wayland" instead? 2. Does the same problem also occur in Ubuntu 20.04 (to be released soon)?