[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Kai Mast: 1) As per the sticker of the monitor itself (not from the Bug Description, or the result of a terminal command), could you please provide the full monitor manufacturer and model? 2) Regarding how you have the monitor connected, is this straight into the computer's miniDP cable, mDP to something else adapter, etc.? 3) Did this issue start to happen after an update? If so, which and when precisely? ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - Laptop sometimes doesn't detect external monitor + [Lenovo ThinkPad T440s] Laptop sometimes doesn't detect external monitor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: [Lenovo ThinkPad T440s] Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
** Tags removed: bios-outdated-2.41 ** Tags added: bios-outdated-2.49 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: [Lenovo ThinkPad T440s] Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
ThinkPad T460p Ubuntu 18.04 / Linux Mint 19 uname -a Linux deus-ex-machina 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Mate Desktop Same problem. If I boot with the dock, everything is fine. If I unplug and plug it again, my external monitors are still black and my internal keyboad and the USB are not working. But I get the message, that the ethernet cable is connected and that the laptop gets power. I also tested https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/comments/14 from Sergey Menshikov (sergem) After adding /usr/share/X11/xorg.conf.d/20-intel.conf my computer was unusable, stopping at the bootscreen, with the message PKCS#7 signature not signed with a trusted key Secure Boot is deactivated. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Ubuntu 17.10 Gnome/Xorg Lenovo 4th gen X1 20FBxxx Skylake i7 Intel built-in video Kernel 4.13.0-32-generic #35-Ubuntu SMP When connecting Thinkpad Dock with 2 Dell monitors, screen locks up (mouse is moving though) and is not responding. Monitors are not recognized. Unlocks 20 sec after disconnect. Happens every time after first connection following a reboot (first connection after reboot is OK) dmesg shows a lot of: drm:intel_wait_ddi_buf_idle [i915_bpo]] *ERROR* ... Workaround: sudo vi /usr/share/X11/xorg.conf.d/20-intel.conf paste: Section "Device" Identifier "Intel Graphics" Driver "intel" Option "DRI" "3" EndSection reboot The issue does not return, unless the above file it removed. Hat tip to https://wiki.archlinux.org/index.php/intel_graphics#Skylake_support -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
I have a Dell XPS 15 and connect over USB C to a display port hub to a HDMI external monitor. Sometime in the past few months I ran into this issue. When I would lock my screen (xflock4) or go into standby the computer would lock up on resume and I had plenty of the following in the logs. drm:intel_wait_ddi_buf_idle [i915_bpo]] *ERROR* Timeout waiting for DDI BUF B idle bit It was fine on startup, as long as it didn't lock the screen. I had been running kernel 4.4.0 on Xubuntu 16.04 I upgraded to kernel to 4.10.0 and my issue is now fixed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
** Tags removed: bios-outdated-2.37 ** Tags added: bios-outdated-2.41 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
I have the same problem on a T460s (skylake CPU). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Same problem here with a Dell Latitude E5440: 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b) Subsystem: Dell Haswell-ULT DRAM Controller Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c Kernel driver in use: hsw_uncore The external monitor is sometimes not found after wake up from suspend. It seems this happens if I have used the laptop without monitor before suspend. The external monitor is not recognized on DisplayPort nor at VGA connector. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
New report filed at https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1578011 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
vik, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal: ubuntu-bug xorg Also, please feel free to subscribe me to it. For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Here is the same/similar issue at RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=1321296 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
I'm getting the same error on a Thinkpad Yoga S1 when I connect to a dock. I've only started experiencing this as a major problem since upgrading to 16.04. I'm on the latest BIOS for this device (1.28). ** Bug watch added: Red Hat Bugzilla #1321296 https://bugzilla.redhat.com/show_bug.cgi?id=1321296 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Kai Mast, I'm not sure where you are reading but both the release notes and website mention precisely 2.37 (GJET87WW). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
kai@kai-thinkpad:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date GJET86WW (2.36 ) 12/04/2015 So this is weird. I applied the latest updated and it says 2.36 not 2.37. The releasenotes also don't mention 2.37... Unfortunately the problem still occurs with this BIOS version. I am 99% certain this problem is caused by a the kernel module and not a faulty bios. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
I don't see anything in the changelogs that affects dockstations. But yeah I can go through the process of updating BIOS again... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1552040] Re: Laptop sometimes doesn't detect external monitor
Kai Mast, thank you for reporting this and helping make Ubuntu better. As per http://support.lenovo.com/us/en/products/Laptops-and- netbooks/ThinkPad-T-Series-laptops/ThinkPad- T440s?linkTrack=GPS:Body_Search%20Products=false an update to your computer's buggy, insecure, and outdated BIOS is available (2.37). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything? For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note, your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status New. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-2.37 ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Undecided => Low ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
