Package: linux-image-amd64 Version: 4.18+98 Severity: normal Dear Maintainer,
Each time I try to boot with the new kernel (4.18.x), one of my LCD screen works in VGA mode (as primary display) but stop to work as soon as the graphical mode starts (it complains about "No signal"). Note that the system seems to be unaware of this because the second screen render the graphical display as if the primary screen was working. I am using Wayland (yes, I love the bleeding edge...). One last specificity of my settings is that the primary display is connected through DP (display port) and the secondary display uses HDMI. I tried to look at the usual logs (/var/log/messages, /var/log/kern.log, /var/log/Xorg.0.log and /var/log/Xorg.1.log), but I did not found anything related (I may have missed it). So, does the 4.18.x Linux kernel family introduce some new things about the display ports or the way Xorg/Wayland is handled. And, everything is working fine when I switch back to 4.17.x. So, I really suspect the 4.18.x to be faulty on that. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 4.17.0-3-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-amd64 depends on: ii linux-image-4.18.0-1-amd64 4.18.6-1 linux-image-amd64 recommends no packages. linux-image-amd64 suggests no packages. -- no debconf information
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