[Ubuntu-x-swat] [Bug 1561452] Re: Cannot activate third display
Clarification on last comment, it did show black screen on eDP-1, which changed to having image if one logged out. After logging in, it turned into black screen with garbled 2mm band at top of the screen. Mouse was displayed on the screen if moved there, but as I said, the entire machine tended to hung completely in about 5 minutes, so I could not do that much testing. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1561452 Title: Cannot activate third display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1561452/+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
[Ubuntu-x-swat] [Bug 1561452] Re: Cannot activate third display
After much experimenting, the problem seems to be with the nvidia driver. Updating it to nvidia-361 made *this* problem go away, except it renamed all outputs, refused to show anything on eDP-1 and made the whole thing hung in 5 minutes after reboot. Reverted to 15.10 which has less difficulties. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1561452 Title: Cannot activate third display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1561452/+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
[Ubuntu-x-swat] [Bug 1561452] [NEW] Cannot activate third display
Public bug reported: When trying to extend desktop to third display, following error is given. It can be configured as mirror of DP-1-2 but not as extended display. # xrandr --verbose --output eDP1 --primary --output DP-1-2 --right-of eDP1 --output DP-1-4 --right-of DP-1-2 --mode 1920x1080 screen 0: 5760x1080 1525x286 mm 95.92dpi crtc 0:1920x1080 60.05 +0+0 "eDP1" crtc 4:1920x1080 60.00 +1920+0 "DP-1-2" crtc 5:1920x1080 60.00 +3840+0 "DP-1-4" xrandr: Configure crtc 5 failed crtc 0: disable crtc 1: disable crtc 2: disable crtc 3: disable crtc 4: disable crtc 5: disable crtc 6: disable crtc 7: disable screen 0: revert crtc 0: revert crtc 1: revert crtc 2: revert crtc 3: revert crtc 4: revert crtc 5: revert crtc 6: revert crtc 7: revert Steps to reproduce: 1. Take one Dell Precision M4800 laptop 2. Attach two external displays with DP 3. Install ubuntu 16.04 4. displays are not extended to third display Expected behaviour: In 14.04 and 15.10 display was automatically activated and extended. This is what I hoped. Actual behaviour: Display stays blank and cannot be activated even with xrandr. ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Output of ubuntu-bug" https://bugs.launchpad.net/bugs/1561452/+attachment/4609607/+files/ubuntu-bug.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1561452 Title: Cannot activate third display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1561452/+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
