<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [ivb DP dual link DVI dongle] [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up" href="https://bugs.freedesktop.org/show_bug.cgi?id=56834#c33">Comment # 33</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [ivb DP dual link DVI dongle] [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up" href="https://bugs.freedesktop.org/show_bug.cgi?id=56834">bug 56834</a> from <a class="email" href="mailto:anthony.foiani+freedesktop@gmail.com" title="Anthony Foiani <anthony.foiani+freedesktop@gmail.com>"> Anthony Foiani</a> <pre>Well, it's *different* with 3.15-rc3. Not in a good way, though. Current fully-up-to-date Fedora 19 boots to some low resolution, but at least it prompts the external DP->DVI2 converter to provide some sort of signal. 3.15-rc3 resulted in no display whatsoever. Trace output below, going to reboot with drm debugging enabled. May 2 04:12:17 opti990 kernel: [ 2.108060] ------------[ cut here ]------------ May 2 04:12:17 opti990 kernel: [ 2.108092] WARNING: CPU: 1 PID: 227 at drivers/gpu/drm/i915/intel_display.c:9766 intel_modeset_check_state+0x61f/0x7d0 [i915]() May 2 04:12:17 opti990 kernel: [ 2.108093] encoder's hw state doesn't match sw tracking (expected 1, found 0) May 2 04:12:17 opti990 kernel: [ 2.108100] Modules linked in: i915(+) i2c_algo_bit drm_kms_helper drm i2c_core video May 2 04:12:17 opti990 kernel: [ 2.108103] CPU: 1 PID: 227 Comm: systemd-udevd Not tainted 3.15.0-0.rc3.git3.1.fc19.x86_64 #1 May 2 04:12:17 opti990 kernel: [ 2.108104] Hardware name: Dell Inc. OptiPlex 990/0PGKWF, BIOS A07 09/10/2011 May 2 04:12:17 opti990 kernel: [ 2.108108] 0000000000000000 00000000127708fd ffff880036e933c8 ffffffff817d5f5a May 2 04:12:17 opti990 kernel: [ 2.108112] ffff880036e93410 ffff880036e93400 ffffffff8109592d 0000000000000001 May 2 04:12:17 opti990 kernel: [ 2.108115] ffff880036e93490 ffff88021fdd67e8 ffff88021cb41000 ffff88021fdd6000 May 2 04:12:17 opti990 kernel: [ 2.108116] Call Trace: May 2 04:12:17 opti990 kernel: [ 2.108122] [<ffffffff817d5f5a>] dump_stack+0x4d/0x66 May 2 04:12:17 opti990 kernel: [ 2.108126] [<ffffffff8109592d>] warn_slowpath_common+0x7d/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108128] [<ffffffff810959ac>] warn_slowpath_fmt+0x5c/0x80 May 2 04:12:17 opti990 kernel: [ 2.108148] [<ffffffffa00eaaff>] intel_modeset_check_state+0x61f/0x7d0 [i915] May 2 04:12:17 opti990 kernel: [ 2.108164] [<ffffffffa00ead45>] intel_set_mode+0x25/0x30 [i915] May 2 04:12:17 opti990 kernel: [ 2.108179] [<ffffffffa00ebc0d>] intel_crtc_set_config+0x8ed/0xdd0 [i915] May 2 04:12:17 opti990 kernel: [ 2.108183] [<ffffffff810f734d>] ? trace_hardirqs_on+0xd/0x10 May 2 04:12:17 opti990 kernel: [ 2.108195] [<ffffffffa0033ec7>] drm_mode_set_config_internal+0x67/0x110 [drm] May 2 04:12:17 opti990 kernel: [ 2.108200] [<ffffffffa00877d3>] drm_fb_helper_restore_fbdev_mode+0xb3/0xe0 [drm_kms_helper] May 2 04:12:17 opti990 kernel: [ 2.108205] [<ffffffffa00893f1>] drm_fb_helper_set_par+0x31/0x80 [drm_kms_helper] May 2 04:12:17 opti990 kernel: [ 2.108209] [<ffffffff81430254>] fbcon_init+0x514/0x5a0 May 2 04:12:17 opti990 kernel: [ 2.108213] [<ffffffff814c6bf8>] visual_init+0xb8/0x120 May 2 04:12:17 opti990 kernel: [ 2.108216] [<ffffffff814c9363>] do_bind_con_driver+0x163/0x330 May 2 04:12:17 opti990 kernel: [ 2.108218] [<ffffffff814c9b14>] do_take_over_console+0x114/0x1c0 May 2 04:12:17 opti990 kernel: [ 2.108221] [<ffffffff8142b8d3>] do_fbcon_takeover+0x63/0xd0 May 2 04:12:17 opti990 kernel: [ 2.108224] [<ffffffff81430d35>] fbcon_event_notify+0x6b5/0x800 May 2 04:12:17 opti990 kernel: [ 2.108227] [<ffffffff817e4156>] notifier_call_chain+0x66/0x150 May 2 04:12:17 opti990 kernel: [ 2.108230] [<ffffffff810c87e3>] __blocking_notifier_call_chain+0x53/0x70 May 2 04:12:17 opti990 kernel: [ 2.108234] [<ffffffff810c8816>] blocking_notifier_call_chain+0x16/0x20 May 2 04:12:17 opti990 kernel: [ 2.108236] [<ffffffff8143784b>] fb_notifier_call_chain+0x1b/0x20 May 2 04:12:17 opti990 kernel: [ 2.108239] [<ffffffff814399bc>] register_framebuffer+0x1fc/0x350 May 2 04:12:17 opti990 kernel: [ 2.108243] [<ffffffffa008977e>] drm_fb_helper_initial_config+0x33e/0x510 [drm_kms_helper] May 2 04:12:17 opti990 kernel: [ 2.108246] [<ffffffff810f7145>] ? mark_held_locks+0x75/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108249] [<ffffffff817dee76>] ? _raw_spin_unlock_irqrestore+0x36/0x70 May 2 04:12:17 opti990 kernel: [ 2.108252] [<ffffffff810f7275>] ? trace_hardirqs_on_caller+0x105/0x1d0 May 2 04:12:17 opti990 kernel: [ 2.108271] [<ffffffffa00f6f6f>] intel_fbdev_initial_config+0x1f/0x30 [i915] May 2 04:12:17 opti990 kernel: [ 2.108292] [<ffffffffa0118269>] i915_driver_load+0xf39/0xfc0 [i915] May 2 04:12:17 opti990 kernel: [ 2.108295] [<ffffffff810f7145>] ? mark_held_locks+0x75/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108298] [<ffffffff817dc78d>] ? __mutex_unlock_slowpath+0xbd/0x190 May 2 04:12:17 opti990 kernel: [ 2.108301] [<ffffffff810f7275>] ? trace_hardirqs_on_caller+0x105/0x1d0 May 2 04:12:17 opti990 kernel: [ 2.108304] [<ffffffff810f7145>] ? mark_held_locks+0x75/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108307] [<ffffffff817dee76>] ? _raw_spin_unlock_irqrestore+0x36/0x70 May 2 04:12:17 opti990 kernel: [ 2.108310] [<ffffffff810f7275>] ? trace_hardirqs_on_caller+0x105/0x1d0 May 2 04:12:17 opti990 kernel: [ 2.108313] [<ffffffff810f734d>] ? trace_hardirqs_on+0xd/0x10 May 2 04:12:17 opti990 kernel: [ 2.108322] [<ffffffffa002e08d>] drm_dev_register+0xad/0x100 [drm] May 2 04:12:17 opti990 kernel: [ 2.108330] [<ffffffffa0030df9>] drm_get_pci_dev+0x89/0x200 [drm] May 2 04:12:17 opti990 kernel: [ 2.108347] [<ffffffffa00925fb>] i915_pci_probe+0x3b/0x60 [i915] May 2 04:12:17 opti990 kernel: [ 2.108350] [<ffffffff8140ad35>] local_pci_probe+0x45/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108352] [<ffffffff8140bfe5>] ? pci_match_device+0xc5/0xd0 May 2 04:12:17 opti990 kernel: [ 2.108355] [<ffffffff8140c129>] pci_device_probe+0xf9/0x150 May 2 04:12:17 opti990 kernel: [ 2.108359] [<ffffffff814f7665>] driver_probe_device+0x125/0x3a0 May 2 04:12:17 opti990 kernel: [ 2.108362] [<ffffffff814f79b3>] __driver_attach+0x93/0xa0 May 2 04:12:17 opti990 kernel: [ 2.108364] [<ffffffff814f7920>] ? __device_attach+0x40/0x40 May 2 04:12:17 opti990 kernel: [ 2.108367] [<ffffffff814f53a3>] bus_for_each_dev+0x73/0xc0 May 2 04:12:17 opti990 kernel: [ 2.108370] [<ffffffff814f6fee>] driver_attach+0x1e/0x20 May 2 04:12:17 opti990 kernel: [ 2.108372] [<ffffffff814f6b98>] bus_add_driver+0x188/0x260 May 2 04:12:17 opti990 kernel: [ 2.108375] [<ffffffffa0165000>] ? 0xffffffffa0164fff May 2 04:12:17 opti990 kernel: [ 2.108377] [<ffffffff814f8054>] driver_register+0x64/0xf0 May 2 04:12:17 opti990 kernel: [ 2.108380] [<ffffffffa0165000>] ? 0xffffffffa0164fff May 2 04:12:17 opti990 kernel: [ 2.108382] [<ffffffff8140a6c0>] __pci_register_driver+0x60/0x70 May 2 04:12:17 opti990 kernel: [ 2.108390] [<ffffffffa003107a>] drm_pci_init+0x10a/0x140 [drm] May 2 04:12:17 opti990 kernel: [ 2.108393] [<ffffffffa0165000>] ? 0xffffffffa0164fff May 2 04:12:17 opti990 kernel: [ 2.108407] [<ffffffffa016506a>] i915_init+0x6a/0x6c [i915] May 2 04:12:17 opti990 kernel: [ 2.108410] [<ffffffff8100216a>] do_one_initcall+0xfa/0x1b0 May 2 04:12:17 opti990 kernel: [ 2.108414] [<ffffffff81062e53>] ? set_memory_nx+0x43/0x50 May 2 04:12:17 opti990 kernel: [ 2.108418] [<ffffffff811302ae>] load_module+0x1e1e/0x2700 May 2 04:12:17 opti990 kernel: [ 2.108421] [<ffffffff8112b840>] ? store_uevent+0x70/0x70 May 2 04:12:17 opti990 kernel: [ 2.108424] [<ffffffff81237610>] ? kernel_read+0x50/0x80 May 2 04:12:17 opti990 kernel: [ 2.108428] [<ffffffff81130d66>] SyS_finit_module+0xa6/0xd0 May 2 04:12:17 opti990 kernel: [ 2.108432] [<ffffffff817e9a69>] system_call_fastpath+0x16/0x1b May 2 04:12:17 opti990 kernel: [ 2.108434] ---[ end trace 50dbbbf7920940d9 ]---</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>