Hi, I'm getting this error consistently with the Debian 3.14.4 after resuming from hibernation: [ 931.032142] ------------[ cut here ]------------ [ 931.032209] WARNING: CPU: 0 PID: 4715 at /build/linux-Zc5oK7/linux-3.14.4/drivers/gpu/drm/i915/intel_panel.c:723 i965_enable_backlight+0x122/0x150 [i915]() [ 931.032219] backlight already enabled [ 931.032223] Modules linked in: ctr ccm cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp xt_conntrack iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables fuse vmwgfx ttm vmxnet3 tp_smapi(O) thinkpad_ec(O) loop ppdev lp btusb bluetooth 6lowpan_iphc crc16 snd_hda_codec_conexant snd_hda_codec_generic coretemp kvm_intel uvcvideo kvm videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media psmouse serio_raw arc4 evdev iwldvm snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss thinkpad_acpi mac80211 snd_mixer_oss nvram snd_pcm snd_seq_midi i2c_i801 snd_seq_midi_event lpc_ich snd_rawmidi mfd_core snd_seq snd_seq_device snd_timer iwlwifi cfg80211 snd wmi soundcore rfkill battery ac parport_pc tpm_tis parport i915 tpm video drm_kms_helper drm i2c_algo_bit i2c_core acpi_cpufreq mei_me mei processor button xfs crc32c libcrc32c lzo sg hid_generic usbhid hid sd_mod crct10dif_generic sr_mod crc_t10dif cdrom crct10dif_common firewire_ohci firewire_core crc_itu_t ahci libahci libata scsi_mod thermal thermal_sys uhci_hcd ehci_pci ehci_hcd usbcore usb_common e1000e ptp pps_core [ 931.032448] CPU: 0 PID: 4715 Comm: kworker/u8:89 Tainted: G O 3.14-1-amd64 #1 Debian 3.14.4-1 [ 931.032456] Hardware name: LENOVO 7417PLU/7417PLU, BIOS 7VET95WW (3.25 ) 10/10/2012 [ 931.032470] Workqueue: events_unbound async_run_entry_fn [ 931.032476] 0000000000000009 ffffffff814b9b42 ffff8800a6369af8 ffffffff8105f0a2 [ 931.032488] ffff880232b04000 ffff8800a6369b48 ffff8802301ac000 00000000e0000000 [ 931.032498] ffff8800b870d000 ffffffff8105f107 ffffffffa0392f9b ffffffff00000018 [ 931.032508] Call Trace: [ 931.032522] [<ffffffff814b9b42>] ? dump_stack+0x41/0x51 [ 931.032532] [<ffffffff8105f0a2>] ? warn_slowpath_common+0x72/0x90 [ 931.032541] [<ffffffff8105f107>] ? warn_slowpath_fmt+0x47/0x50 [ 931.032576] [<ffffffffa0366782>] ? gen4_read32+0x32/0xa0 [i915] [ 931.032609] [<ffffffffa034f2f2>] ? i965_enable_backlight+0x122/0x150 [i915] [ 931.032644] [<ffffffffa035025c>] ? intel_panel_enable_backlight+0x9c/0xe0 [i915] [ 931.032676] [<ffffffffa03663c0>] ? gen4_write64+0x90/0x90 [i915] [ 931.032709] [<ffffffffa0330181>] ? i9xx_crtc_enable+0x2e1/0x400 [i915] [ 931.032743] [<ffffffffa03329ee>] ? __intel_set_mode+0x85e/0x15a0 [i915] [ 931.032779] [<ffffffffa0338c49>] ? intel_modeset_setup_hw_state+0xb09/0xc10 [i915] [ 931.032808] [<ffffffffa02fd2ca>] ? __i915_drm_thaw+0x15a/0x210 [i915] [ 931.032834] [<ffffffffa02fd3d1>] ? i915_resume+0x51/0x70 [i915] [ 931.032844] [<ffffffff812b0da0>] ? pci_pm_suspend_noirq+0x190/0x190 [ 931.032854] [<ffffffff8136cd8e>] ? dpm_run_callback+0x2e/0x70 [ 931.032862] [<ffffffff8136ce9c>] ? device_resume+0x8c/0x180 [ 931.032870] [<ffffffff8136cfa4>] ? async_resume+0x14/0x40 [ 931.032880] [<ffffffff8108503d>] ? async_run_entry_fn+0x2d/0x120 [ 931.032890] [<ffffffff81078b9d>] ? process_one_work+0x16d/0x420 [ 931.032899] [<ffffffff81079756>] ? worker_thread+0x116/0x3b0 [ 931.032908] [<ffffffff81079640>] ? rescuer_thread+0x330/0x330 [ 931.032917] [<ffffffff8107f911>] ? kthread+0xc1/0xe0 [ 931.032925] [<ffffffff8107f850>] ? kthread_create_on_node+0x180/0x180 [ 931.032934] [<ffffffff814c73cc>] ? ret_from_fork+0x7c/0xb0 [ 931.032943] [<ffffffff8107f850>] ? kthread_create_on_node+0x180/0x180 [ 931.032950] ---[ end trace a83af26b25b25474 ]--- My hardware is a Lenovo T400 with a GM45. Does this mean anything to you? Please let me know if there is anything else you need. Regards, Pedro _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
