<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HSW] *ERROR* too many voltage retries, give up" href="https://bugs.freedesktop.org/show_bug.cgi?id=83516#c8">Comment # 8</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HSW] *ERROR* too many voltage retries, give up" href="https://bugs.freedesktop.org/show_bug.cgi?id=83516">bug 83516</a> from <a class="email" href="mailto:chris.cheney@gmail.com" title="Chris Cheney <chris.cheney@gmail.com>"> Chris Cheney</a> <pre>I upgraded my motherboard bios, which appears to have a new GOP/VBIOS, after tracking down the commit for this issue. After the update I don't get the error on last night's Ubuntu drm-intel-nightly daily build. However DisplayPort is still not working and I'm getting a backtrace that looks effectively the same as in the prior dmesg. I don't know how to verify the GOP/VBIOS version, is there a way to do that with the intel-gpu-tools? It might be useful if it is the obtainable to put that information into dmesg output, for debugging purposes, since it seems some of these issues may be interactions from differing versions of them. --- [ 48.134639] ------------[ cut here ]------------ [ 48.134680] WARNING: CPU: 0 PID: 1402 at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_dp.c:3649 intel_dp_link_down+0x223/0x260 [i915]() [ 48.134706] Modules linked in: rfcomm bnep bluetooth joydev hid_logitech_dj usbhid uas hid usb_storage usblp intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm nls_iso8859_1 mxm_wmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_realtek aesni_intel snd_hda_codec_generic aes_x86_64 snd_hda_codec_hdmi lrw gf128mul glue_helper ablk_helper cryptd serio_raw lpc_ich snd_hda_intel wmi snd_hda_controller mac_hid snd_hda_codec tpm_infineon snd_hwdep i915 snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device video snd_timer drm_kms_helper drm snd mei_me mei soundcore ppdev lp parport igb e1000e firewire_ohci i2c_algo_bit psmouse firewire_core dca ahci ptp crc_itu_t libahci pps_core [last unloaded: parport_pc] [ 48.134708] CPU: 0 PID: 1402 Comm: Xorg Not tainted 3.17.0-994-generic #201409060350 [ 48.134709] Hardware name: Gigabyte Technology Co., Ltd. Z87X-UD5H/Z87X-UD5H-CF, BIOS F10 08/21/2014 [ 48.134711] 0000000000000e41 ffff8807ec19b6d8 ffffffff82795dc5 0000000000000286 [ 48.134712] 0000000000000000 ffff8807ec19b718 ffffffff82074a1c 0000000000152487 [ 48.134713] ffff8807ec5b0000 ffff8807eb87a0e0 ffff8807ebca9000 0000000080000002 [ 48.134714] Call Trace: [ 48.134722] [<ffffffff82795dc5>] dump_stack+0x46/0x58 [ 48.134726] [<ffffffff82074a1c>] warn_slowpath_common+0x8c/0xc0 [ 48.134728] [<ffffffff82074a6a>] warn_slowpath_null+0x1a/0x20 [ 48.134740] [<ffffffffc0660723>] intel_dp_link_down+0x223/0x260 [i915] [ 48.134753] [<ffffffffc06670e1>] intel_dp_complete_link_train+0x101/0x220 [i915] [ 48.134764] [<ffffffffc065ead7>] intel_ddi_pre_enable+0x137/0x1b0 [i915] [ 48.134774] [<ffffffffc064c40c>] haswell_crtc_enable+0xfc/0x310 [i915] [ 48.134785] [<ffffffffc064a6df>] __intel_set_mode+0x31f/0x480 [i915] [ 48.134795] [<ffffffffc064ea96>] intel_set_mode+0x16/0x30 [i915] [ 48.134805] [<ffffffffc064f596>] intel_crtc_set_config+0x1e6/0x370 [i915] [ 48.134820] [<ffffffffc0540aa0>] ? drm_modeset_lock+0x40/0x100 [drm] [ 48.134828] [<ffffffffc0532380>] drm_mode_set_config_internal+0x60/0x100 [drm] [ 48.134833] [<ffffffffc0599583>] restore_fbdev_mode+0xd3/0x100 [drm_kms_helper] [ 48.134837] [<ffffffffc059967c>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2c/0x50 [drm_kms_helper] [ 48.134841] [<ffffffffc059ad61>] drm_fb_helper_set_par+0x31/0x80 [drm_kms_helper] [ 48.134844] [<ffffffffc059acdc>] drm_fb_helper_hotplug_event+0xcc/0x120 [drm_kms_helper] [ 48.134846] [<ffffffffc059ad79>] drm_fb_helper_set_par+0x49/0x80 [drm_kms_helper] [ 48.134857] [<ffffffffc06583fa>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 48.134861] [<ffffffff82411343>] fb_set_var+0x283/0x3a0 [ 48.134864] [<ffffffff820ab190>] ? check_preempt_wakeup+0x110/0x210 [ 48.134866] [<ffffffff82408184>] fbcon_blank+0x1e4/0x2d0 [ 48.134869] [<ffffffff824960ae>] do_unblank_screen.part.21+0x9e/0x180 [ 48.134871] [<ffffffff824961d8>] do_unblank_screen+0x48/0x80 [ 48.134873] [<ffffffff8248b735>] complete_change_console+0x65/0xf0 [ 48.134875] [<ffffffff8248c8ec>] vt_ioctl+0x112c/0x11c0 [ 48.134882] [<ffffffffc052b610>] ? drm_setmaster_ioctl+0xe0/0xe0 [drm] [ 48.134886] [<ffffffff8247fda8>] tty_ioctl+0x298/0x8f0 [ 48.134890] [<ffffffff82226f42>] ? fsnotify+0x1c2/0x280 [ 48.134894] [<ffffffff821fbe95>] do_vfs_ioctl+0x75/0x2c0 [ 48.134897] [<ffffffff821e9e16>] ? vfs_write+0x196/0x1f0 [ 48.134899] [<ffffffff82206545>] ? __fget_light+0x25/0x70 [ 48.134901] [<ffffffff821fc171>] SyS_ioctl+0x91/0xb0 [ 48.134903] [<ffffffff827a392d>] system_call_fastpath+0x1a/0x1f [ 48.134904] ---[ end trace a85f12aba661920f ]---</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>