Hi, thanks for you promptly response, unfortunately only now I had the time to check the things above.
The HWE is the latest: ``` ~$ sudo apt-get install --install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04 Reading package lists... Done Building dependency tree Reading state information... Done linux-generic-hwe-16.04 is already the newest version (4.13.0.43.62). xserver-xorg-hwe-16.04 is already the newest version (1:7.7+16ubuntu3~16.04.1). The following packages were automatically installed and are no longer required: dkms libllvm4.0 linux-headers-4.10.0-28 linux-headers-4.10.0-28-generic linux-image-4.10.0-28-generic linux-image-extra-4.10.0-28-generic Use 'sudo apt autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 23 not upgraded. ``` The the bios is now updated, but the issue persists. ``` atritoman@atritoman-HP-EliteBook-840-G1:~$ sudo dmidecode -t 0 # dmidecode 3.0 Getting SMBIOS data from sysfs. SMBIOS 2.7 present. Handle 0x000D, DMI type 0, 24 bytes BIOS Information Vendor: Hewlett-Packard Version: L71 Ver. 01.44 Release Date: 04/12/2018 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 8192 kB Characteristics: PCI is supported PC Card (PCMCIA) is supported BIOS is upgradeable BIOS shadowing is allowed Boot from CD is supported Selectable boot is supported EDD is supported Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h) ACPI is supported USB legacy is supported Smart battery is supported BIOS boot specification is supported Function key-initiated network boot is supported Targeted content distribution is supported UEFI is supported BIOS Revision: 1.44 Firmware Revision: 21.89 ``` Meanwhile I had to reinstall ubuntu 16.04, its the default with Unity, same behavior. When I've started the newly reinstalled system, it seemed to work well, the dual display, after a reboot or two, it stoped working. The login screen works well and displays with dual display when I restart the laptop, but after I login it crashes, and it seems to restart the graphic environment/xserver maybe ... I can post some additional logs. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1771539 Title: Xorg crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1771539/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp