<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL mobile]eDP screen flicker after system resume from s4" href="https://bugs.freedesktop.org/show_bug.cgi?id=89132#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL mobile]eDP screen flicker after system resume from s4" href="https://bugs.freedesktop.org/show_bug.cgi?id=89132">bug 89132</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>[ 3.520344] ------------[ cut here ]------------ [ 3.520399] WARNING: CPU: 0 PID: 24 at drivers/gpu/drm/i915/intel_pm.c:3084 skl_update_other_pipe_wm+0xe3/0x156 [i915]() [ 3.520401] WARN_ON(!wm_changed) [ 3.520423] Modules linked in: i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [ 3.520428] CPU: 0 PID: 24 Comm: kworker/u16:1 Not tainted 3.19.0-rc7_drm-intel-nightly_b4442e_20150208+ #198 [ 3.520430] Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.86C.B068.R00.1501090908 01/09/2015 [ 3.520438] Workqueue: events_unbound async_run_entry_fn [ 3.520442] 0000000000000000 0000000000000009 ffffffff8179a69b ffff880148dbf5a8 [ 3.520445] ffffffff8103bdec ffff880143cb991c ffffffffa008d5f4 ffffffff81b88000 [ 3.520447] ffff880143cb9918 ffff880148dbf670 ffff880143dcf000 ffff88009bbce000 [ 3.520448] Call Trace: [ 3.520456] [<ffffffff8179a69b>] ? dump_stack+0x40/0x50 [ 3.520462] [<ffffffff8103bdec>] ? warn_slowpath_common+0x98/0xb0 [ 3.520502] [<ffffffffa008d5f4>] ? skl_update_other_pipe_wm+0xe3/0x156 [i915] [ 3.520507] [<ffffffff8103be9c>] ? warn_slowpath_fmt+0x45/0x4a [ 3.520543] [<ffffffffa008d5f4>] ? skl_update_other_pipe_wm+0xe3/0x156 [i915] [ 3.520576] [<ffffffffa008d7a6>] ? skl_update_wm+0x13f/0x5a8 [i915] [ 3.520587] [<ffffffff81065284>] ? add_wait_queue+0x3c/0x3c [ 3.520657] [<ffffffffa00f735b>] ? intel_dp_aux_transfer+0x11a/0x142 [i915] [ 3.520719] [<ffffffffa00d8ee3>] ? haswell_crtc_disable+0x29d/0x30b [i915] [ 3.520810] [<ffffffffa00d93d7>] ? __intel_set_mode+0x344/0x895 [i915] [ 3.520870] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 3.520931] [<ffffffffa00df2d3>] ? intel_crtc_set_config+0x7d0/0xbb9 [i915] [ 3.520953] [<ffffffffa0024a11>] ? drm_atomic_state_clear+0xec/0x10d [drm] [ 3.520967] [<ffffffffa001804a>] ? drm_mode_set_config_internal+0x4e/0xd2 [drm] [ 3.520973] [<ffffffffa00652e2>] ? restore_fbdev_mode+0xa8/0xc3 [drm_kms_helper] [ 3.520978] [<ffffffffa00665ff>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1f/0x56 [drm_kms_helper] [ 3.520983] [<ffffffffa0066664>] ? drm_fb_helper_set_par+0x2e/0x33 [drm_kms_helper] [ 3.521042] [<ffffffffa00eb9fa>] ? intel_fb_initial_config+0x4d1/0x4d1 [i915] [ 3.521110] [<ffffffffa00eba0b>] ? intel_fbdev_set_par+0x11/0x55 [i915] [ 3.521118] [<ffffffff81379efd>] ? fbcon_init+0x2ff/0x408 [ 3.521122] [<ffffffff813cca71>] ? visual_init+0xaf/0x102 [ 3.521126] [<ffffffff813ce20d>] ? do_bind_con_driver+0x1a1/0x2ca [ 3.521129] [<ffffffff813ce468>] ? do_take_over_console+0x132/0x162 [ 3.521133] [<ffffffff813795ea>] ? do_fbcon_takeover+0x53/0x96 [ 3.521137] [<ffffffff81051935>] ? notifier_call_chain+0x2e/0x59 [ 3.521142] [<ffffffff81051a74>] ? __blocking_notifier_call_chain+0x43/0x5d [ 3.521145] [<ffffffff81382f73>] ? register_framebuffer+0x23f/0x29d [ 3.521151] [<ffffffffa00668bb>] ? drm_fb_helper_initial_config+0x252/0x2ef [drm_kms_helper] [ 3.521155] [<ffffffff81052a9b>] ? async_run_entry_fn+0x2d/0xc3 [ 3.521160] [<ffffffff8104d128>] ? process_one_work+0x1ad/0x31a [ 3.521165] [<ffffffff8104d4ef>] ? worker_thread+0x235/0x330 [ 3.521169] [<ffffffff8104d2ba>] ? process_scheduled_works+0x25/0x25 [ 3.521172] [<ffffffff81050dee>] ? kthread+0xc5/0xcd [ 3.521176] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 3.521179] [<ffffffff8179ffec>] ? ret_from_fork+0x7c/0xb0 [ 3.521183] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 3.521185] ---[ end trace 8123ccd83fef64b5 ]---</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>