<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [DP] Getting kernel WARN every time I disconnect a DisplayPort monitor" href="https://bugs.freedesktop.org/show_bug.cgi?id=69251#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [DP] Getting kernel WARN every time I disconnect a DisplayPort monitor" href="https://bugs.freedesktop.org/show_bug.cgi?id=69251">bug 69251</a> from <a class="email" href="mailto:leho@kraav.com" title="Leho Kraav (:macmaN :lkraav) <leho@kraav.com>"> Leho Kraav (:macmaN :lkraav)</a> <pre>I'm experiencing this with 3.16.1. aug 31 15:46:00 xps14 kernel: ------------[ cut here ]------------ aug 31 15:46:00 xps14 kernel: WARNING: CPU: 2 PID: 5938 at drivers/gpu/drm/i915/intel_dp.c:3122 intel_dp_link_down+0x53/0x1cb [i915]() aug 31 15:46:00 xps14 kernel: Modules linked in: nfsv3 nfs_acl nfs lockd sunrpc snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device msr cpufreq_stats tun ctr ccm btusb bnep b aug 31 15:46:00 xps14 kernel: processor snd crc32_pclmul i915 fbcon bitblit softcursor cfbfillrect font cfbimgblt intel_gtt cfbcopyarea drm_kms_helper drm ehci_pci agpgart ehci_hcd fb xhci aug 31 15:46:00 xps14 kernel: CPU: 2 PID: 5938 Comm: Xorg Tainted: G W 3.16.1 #37 aug 31 15:46:00 xps14 kernel: Hardware name: Dell Inc. Latitude E7440/0PPXP5, BIOS A08 02/18/2014 aug 31 15:46:00 xps14 kernel: 0000000000000009 ffff8800bb687988 ffffffff8147b2c7 0000000000000006 aug 31 15:46:00 xps14 kernel: 0000000000000000 ffff8800bb6879c8 ffffffff81038df3 0000000000000006 aug 31 15:46:00 xps14 kernel: ffffffffa0149dd4 ffff880405910000 ffff88040694d8d8 ffff88040694f000 aug 31 15:46:00 xps14 kernel: Call Trace: aug 31 15:46:00 xps14 kernel: [<ffffffff8147b2c7>] dump_stack+0x4e/0x71 aug 31 15:46:00 xps14 kernel: [<ffffffff81038df3>] warn_slowpath_common+0x7c/0x96 aug 31 15:46:00 xps14 kernel: [<ffffffffa0149dd4>] ? intel_dp_link_down+0x53/0x1cb [i915] aug 31 15:46:00 xps14 kernel: [<ffffffff81038e22>] warn_slowpath_null+0x15/0x17 aug 31 15:46:00 xps14 kernel: [<ffffffffa0149dd4>] intel_dp_link_down+0x53/0x1cb [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa014e5a3>] intel_dp_complete_link_train+0x107/0x296 [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa0147e56>] intel_ddi_pre_enable+0x124/0x164 [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa0134639>] haswell_crtc_enable+0x4b0/0x8ef [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa0148af2>] ? intel_ddi_pll_select+0x41/0x2b0 [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa0137595>] __intel_set_mode+0x10d7/0x11dd [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa013954b>] intel_set_mode+0x11/0x2a [i915] aug 31 15:46:00 xps14 kernel: [<ffffffffa013a18f>] intel_crtc_set_config+0x710/0xa0f [i915] aug 31 15:46:00 xps14 kernel: [<ffffffff8126de4e>] ? idr_alloc+0x91/0xb9 aug 31 15:46:00 xps14 kernel: [<ffffffffa00728d6>] drm_mode_set_config_internal+0x4e/0xba [drm] aug 31 15:46:00 xps14 kernel: [<ffffffffa0075882>] drm_mode_setcrtc+0x3da/0x484 [drm] aug 31 15:46:00 xps14 kernel: [<ffffffffa00690d5>] drm_ioctl+0x2b3/0x414 [drm] aug 31 15:46:00 xps14 kernel: [<ffffffffa00754a8>] ? drm_mode_setplane+0x39f/0x39f [drm] aug 31 15:46:00 xps14 kernel: [<ffffffff8111f214>] do_vfs_ioctl+0x3f9/0x443 aug 31 15:46:00 xps14 kernel: [<ffffffff81110b06>] ? vfs_write+0x134/0x195 aug 31 15:46:00 xps14 kernel: [<ffffffff8111f297>] SyS_ioctl+0x39/0x62 aug 31 15:46:00 xps14 kernel: [<ffffffff814805d2>] system_call_fastpath+0x16/0x1b aug 31 15:46:00 xps14 kernel: ---[ end trace 22887e7bb10acd1a ]--- aug 31 15:46:00 xps14 kernel: [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting Even though hostname says xps14, it's actually the E7440, as the trace also says in Hardware name.</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> </ul> </body> </html>