<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - Desktop will black when sliding mouse in touchpad after switching tty in my skylake machine" href="https://bugs.freedesktop.org/show_bug.cgi?id=90704#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - Desktop will black when sliding mouse in touchpad after switching tty in my skylake machine" href="https://bugs.freedesktop.org/show_bug.cgi?id=90704">bug 90704</a> from <a class="email" href="mailto:vivianhu@linpus.com" title="vivianhu <vivianhu@linpus.com>"> vivianhu</a> <pre>Hi jani, sorry to trouble you. ^-^ But we meet a new problem when we use drm-intel-nightly branch,it will report an error and many crash info in dmesg, please refer to attachment. What is i915/skl_dmc_ver4.bin and where to get it? And Does it will cause any problem if skl_dmc_ver4.bin is not loaded? what is the cut info? for example: [ 5.076518] i915 0000:00:02.0: Direct firmware load for i915/skl_dmc_ver4.bin failed with error -2 [ 5.076562] [drm:i915_firmware_load_error_print [i915]] *ERROR* failed to load firmware i915/skl_dmc_ver4.bin (0) ------------[ cut here ]------------ [ 6.127802] WARNING: CPU: 0 PID: 92 at drivers/gpu/drm/i915/intel_csr.c:462 assert_csr_loaded+0xa7/0x100 [i915]() [ 6.127803] CSR is not loaded. [ 6.127811] Modules linked in: i915(+) i2c_algo_bit video drm_kms_helper drm i2c_core [ 6.127816] CPU: 0 PID: 92 Comm: kworker/u16:3 Not tainted 4.1.0-50.5.1.lp22.x86_64 #1 [ 6.127818] Hardware name: LENOVO INVALID/VIUU4, BIOS D5CN07WW(T006) 02/11/2015 [ 6.127826] Workqueue: events_unbound async_run_entry_fn [ 6.127831] ffffffffa0186ff8 ffff88026f6ef738 ffffffff8176889d 0000000008ae08ae [ 6.127835] ffff88026f6ef788 ffff88026f6ef778 ffffffff8107c32a ffff88026f6ef768 [ 6.127838] ffff88026f180000 ffff88026f1802b0 0000000000000002 000000003000000f [ 6.127839] Call Trace: [ 6.127848] [<ffffffff8176889d>] dump_stack+0x45/0x57 [ 6.127853] [<ffffffff8107c32a>] warn_slowpath_common+0x8a/0xc0 [ 6.127857] [<ffffffff8107c3a6>] warn_slowpath_fmt+0x46/0x50 [ 6.127921] [<ffffffffa01106be>] ? gen9_read32+0x6e/0x2f0 [i915] [ 6.127971] [<ffffffffa00cf1d7>] assert_csr_loaded+0xa7/0x100 [i915] [ 6.128015] [<ffffffffa00cddb3>] skl_set_power_well+0x743/0xac0 [i915] [ 6.128057] [<ffffffffa00ce163>] skl_power_well_enable+0x13/0x20 [i915] [ 6.128099] [<ffffffffa00ce426>] intel_display_power_get+0xa6/0x100 [i915] [ 6.128169] [<ffffffffa015e77c>] intel_hdmi_set_edid+0x3c/0x100 [i915] [ 6.128236] [<ffffffffa015e935>] intel_hdmi_detect+0x55/0xb0 [i915] [ 6.128246] [<ffffffffa0083c90>] drm_helper_probe_single_connector_modes_merge_bits+0x300/0x4c0 [drm_kms_helper] [ 6.128255] [<ffffffffa0083e63>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 6.128266] [<ffffffffa008dde0>] drm_fb_helper_probe_connector_modes.isra.3+0x50/0x70 [drm_kms_helper] [ 6.128277] [<ffffffffa008ef5e>] drm_fb_helper_hotplug_event+0x5e/0xe0 [drm_kms_helper] [ 6.128287] [<ffffffffa008f02c>] drm_fb_helper_restore_fbdev_mode_unlocked+0x4c/0x80 [drm_kms_helper] [ 6.128295] [<ffffffffa008f082>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper] [ 6.128359] [<ffffffffa014350a>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 6.128364] [<ffffffff81460044>] fbcon_init+0x4f4/0x580 [ 6.128369] [<ffffffff814c679c>] visual_init+0xbc/0x120 [ 6.128373] [<ffffffff814c8dd3>] do_bind_con_driver+0x163/0x330 [ 6.128378] [<ffffffff814c92dc>] do_take_over_console+0x11c/0x1c0 [ 6.128384] [<ffffffff8145b1c3>] do_fbcon_takeover+0x63/0xd0 [ 6.128387] [<ffffffff81460aed>] fbcon_event_notify+0x68d/0x7e0 [ 6.128394] [<ffffffff81099e8e>] notifier_call_chain+0x4e/0x80 [ 6.128399] [<ffffffff8109a1ed>] __blocking_notifier_call_chain+0x4d/0x70 [ 6.128402] [<ffffffff810c3c86>] ? pm_vt_switch_required+0x76/0xa0 [ 6.128408] [<ffffffff8109a226>] blocking_notifier_call_chain+0x16/0x20 [ 6.128413] [<ffffffff814668cb>] fb_notifier_call_chain+0x1b/0x20 [ 6.128417] [<ffffffff81468946>] register_framebuffer+0x1e6/0x320 [ 6.128429] [<ffffffffa008f324>] drm_fb_helper_initial_config+0x274/0x3d0 [drm_kms_helper] [ 6.128492] [<ffffffffa014471b>] intel_fbdev_initial_config+0x1b/0x20 [i915] [ 6.128496] [<ffffffff8109baaa>] async_run_entry_fn+0x4a/0x140 [ 6.128500] [<ffffffff81093622>] process_one_work+0x142/0x3f0 [ 6.128503] [<ffffffff810939eb>] worker_thread+0x11b/0x460 [ 6.128507] [<ffffffff810938d0>] ? process_one_work+0x3f0/0x3f0 [ 6.128512] [<ffffffff81098fb2>] kthread+0xd2/0xf0 [ 6.128517] [<ffffffff81098ee0>] ? kthread_create_on_node+0x170/0x170 [ 6.128522] [<ffffffff81770012>] ret_from_fork+0x42/0x70 [ 6.128526] [<ffffffff81098ee0>] ? kthread_create_on_node+0x170/0x170 [ 6.128529] ---[ end trace d595c73cdcde54bc ]---</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>