Public bug reported: It seems that it tries many times display but no result, But 1080p works without issue. Not sure if it's some bios settings, now it is in UEFI mode. I will investigate it further.
I turned off the other screen, it doesn't help In logs it looks pretty normal, but the screen is turned , but blank and the icon of the chainged source is coming from time to time. [ 1499.601] (II) intel(0): resizing framebuffer to 2560x1440 [ 1499.668] (II) intel(0): switch to mode 2560x1440@60.0 on DP2 using pipe 0, position (0, 0), rotation normal, reflection none The screen is Dell 2713H However there some errors in log Dec 19 15:30:19 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:26 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:30:26 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:05 stalagnat sudo[5511]: mastier : TTY=pts/1 ; PWD=/home/mastier ; USER=root ; COMMAND=/bin/cat /var/log/Xorg.0.log Dec 19 15:32:05 stalagnat sudo[5511]: pam_unix(sudo:session): session opened for user root by mastier(uid=0) Dec 19 15:32:05 stalagnat sudo[5511]: pam_unix(sudo:session): session closed for user root Dec 19 15:32:07 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:07 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:21 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:35 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:35 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:32:35 stalagnat kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:06 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:09 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:09 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:13 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:14 stalagnat sudo[5547]: mastier : TTY=pts/1 ; PWD=/home/mastier ; USER=root ; COMMAND=/bin/cat /var/log/Xorg.0.log Dec 19 15:33:14 stalagnat sudo[5547]: pam_unix(sudo:session): session opened for user root by mastier(uid=0) Dec 19 15:33:14 stalagnat sudo[5547]: pam_unix(sudo:session): session closed for user root Dec 19 15:33:15 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:29 stalagnat kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=92418 end=92419) Dec 19 15:33:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request Dec 19 15:33:46 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-signed-image-4.2.0-21-generic 4.2.0-21.25 ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 Uname: Linux 4.2.0-21-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 Date: Sat Dec 19 15:28:46 2015 ProcEnviron: LANGUAGE=pl TERM=xterm-256color PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug wily ** Description changed: It seems that it tries many times display but no result, But 1080p works without issue. Not sure if it's some bios settings, now it is in UEFI mode. I will investigate it further. I turned off the other screen, it doesn't help In logs it looks pretty normal, but the screen is turned , but blank and the icon of the chainged source is coming from time to time. [ 1499.601] (II) intel(0): resizing framebuffer to 2560x1440 [ 1499.668] (II) intel(0): switch to mode 2560x1440@60.0 on DP2 using pipe 0, position (0, 0), rotation normal, reflection none The screen is Dell 2713H + + However there some errors in log + + Dec 19 15:30:19 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:20 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:26 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:30:26 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:05 stalagnat sudo[5511]: mastier : TTY=pts/1 ; PWD=/home/mastier ; USER=root ; COMMAND=/bin/cat /var/log/Xorg.0.log + Dec 19 15:32:05 stalagnat sudo[5511]: pam_unix(sudo:session): session opened for user root by mastier(uid=0) + Dec 19 15:32:05 stalagnat sudo[5511]: pam_unix(sudo:session): session closed for user root + Dec 19 15:32:07 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:07 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:21 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:22 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:35 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:35 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:32:35 stalagnat kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun + Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:05 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:06 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:09 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:09 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:13 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:14 stalagnat sudo[5547]: mastier : TTY=pts/1 ; PWD=/home/mastier ; USER=root ; COMMAND=/bin/cat /var/log/Xorg.0.log + Dec 19 15:33:14 stalagnat sudo[5547]: pam_unix(sudo:session): session opened for user root by mastier(uid=0) + Dec 19 15:33:14 stalagnat sudo[5547]: pam_unix(sudo:session): session closed for user root + Dec 19 15:33:15 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:29 stalagnat kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=92418 end=92419) + Dec 19 15:33:34 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + Dec 19 15:33:46 stalagnat kernel: [drm:valleyview_update_wm [i915]] *ERROR* timed out waiting for Punit DDR DVFS request + + ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-signed-image-4.2.0-21-generic 4.2.0-21.25 ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 Uname: Linux 4.2.0-21-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 Date: Sat Dec 19 15:28:46 2015 ProcEnviron: - LANGUAGE=pl - TERM=xterm-256color - PATH=(custom, no user) - LANG=en_GB.UTF-8 - SHELL=/bin/bash + LANGUAGE=pl + TERM=xterm-256color + PATH=(custom, no user) + LANG=en_GB.UTF-8 + SHELL=/bin/bash SourcePackage: linux-signed UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1527889 Title: Resolution >1080p (like 1440p) doesn't work on Intel Braswell ( Asrock N3150 ) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1527889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs