Hi Christopher, Thank you for your time. As requested I have updated the BIOS from the BIOS interface itself. The display connected on Display port behaves exactly the same as before : - It is on during bios startup - It is on during grub menu - It is on and showing the first lines during linux boot. - It turns black after about one second (probably when radeon module is loaded). - it stays black when xorg is started - It seems to be recognised by randr but never displays anything.
Here are the results of the dmidecode commands : sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2601 03/24/2015 Regards. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1499491 Title: Display connected on DisplayPort turns black during boot and never returns To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1499491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
