drm.debug=0xe added kernel command line: $ dmesg | head [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.19.0-16-generic (buildd@komainu) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13) ) #16-Ubuntu SMP Thu Apr 30 16:09:58 UTC 2015 (Ubuntu 3.19.0-16.16-generic 3.19.3) [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=07d60846-8d52-4911-b233-7e5b8611e217 ro quiet splash drm.debug=0xe vt.handoff=7 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] e820: BIOS-provided physical RAM map:
dmesg is now showing a lot of "[drm:..." lines: [ 9.002449] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 9.002453] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 9.002456] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:HDMI-A-1] disconnected [ 9.002459] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:35:DP-1] I'll report as soon as the flip error occurs again (I hope this post will also appear on bugs.freedesktop.org) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1420290 Title: WARNING: CPU: 0 PID: 2517 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:9713 intel_check_page_flip+0xe6/0xf0 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1420290/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
