My Toshiba A50 with graphics adapter described by 00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) gets the following warning on 3.17-rc1: [ 1271.563533] ------------[ cut here ]------------ [ 1271.563568] WARNING: CPU: 1 PID: 1050 at drivers/gpu/drm/i915/intel_display.c:1234 assert_cursor.constprop.79+0x99/0xa0 [i915]() [ 1271.563571] cursor on pipe A assertion failure (expected off, current on) [ 1271.563573] Modules linked in: ctr ccm fuse nfs bnep bluetooth af_packet fscache arc4 x86_pkg_temp_thermal kvm_intel iwlmvm kvm mac80211 crct10dif_pclmul crc32_pclmul crc32c_intel snd_hda_codec_generic i915 snd_hda_intel ghash_clmulni_intel aesni_intel aes_x86_64 snd_hda_controller lrw gf128mul snd_hda_codec glue_helper iwlwifi ablk_helper rtsx_pci_sdmmc cryptd snd_hwdep snd_pcm rtsx_pci_ms memstick mmc_core snd_seq acpi_cpufreq cfg80211 drm_kms_helper processor drm microcode pcspkr serio_raw thermal video thermal_sys sr_mod cdrom lpc_ich snd_seq_device snd_timer rfkill rtsx_pci mfd_core snd soundcore e1000e i2c_algo_bit hwmon ptp pps_core wmi xhci_hcd ac battery button sg dm_mod autofs4 [ 1271.563659] CPU: 1 PID: 1050 Comm: Xorg Not tainted 3.17.0-rc1+ #9 [ 1271.563661] Hardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.20 04/17/2014 [ 1271.563664] 0000000000000009 ffff8800c72f7aa8 ffffffff816a009b ffff8800c72f7af0 [ 1271.563670] ffff8800c72f7ae0 ffffffff8105bdfd 0000000000000000 0000000000000000 [ 1271.563675] 0000000000000003 ffff8800c6741000 ffff8800c6741000 ffff8800c72f7b40 [ 1271.563681] Call Trace: [ 1271.563688] [<ffffffff816a009b>] dump_stack+0x4d/0x6f [ 1271.563695] [<ffffffff8105bdfd>] warn_slowpath_common+0x7d/0xa0 [ 1271.563699] [<ffffffff8105be6c>] warn_slowpath_fmt+0x4c/0x50 [ 1271.563720] [<ffffffffa04d2029>] assert_cursor.constprop.79+0x99/0xa0 [i915] [ 1271.563737] [<ffffffffa04d4cb9>] intel_enable_pipe+0x49/0x1f0 [i915] [ 1271.563757] [<ffffffffa04dd806>] haswell_crtc_enable+0x486/0xa80 [i915] [ 1271.563774] [<ffffffffa04d9662>] __intel_set_mode+0x822/0xac0 [i915] [ 1271.563793] [<ffffffffa04e1246>] intel_set_mode+0x16/0x30 [i915] [ 1271.563811] [<ffffffffa04e221c>] intel_crtc_set_config+0x92c/0xe70 [i915] [ 1271.563828] [<ffffffffa018e727>] drm_mode_set_config_internal+0x67/0xf0 [drm] [ 1271.563843] [<ffffffffa019304c>] drm_mode_setcrtc+0xdc/0x590 [drm] [ 1271.563855] [<ffffffffa0185016>] drm_ioctl+0x1a6/0x640 [drm] [ 1271.563862] [<ffffffff811ebf15>] ? __fget+0x5/0xe0 [ 1271.563867] [<ffffffff811e0f40>] do_vfs_ioctl+0x300/0x520 [ 1271.563871] [<ffffffff811ebfbd>] ? __fget+0xad/0xe0 [ 1271.563876] [<ffffffff811ebf15>] ? __fget+0x5/0xe0 [ 1271.563880] [<ffffffff811e11e1>] SyS_ioctl+0x81/0xa0 [ 1271.563887] [<ffffffff816a93d2>] system_call_fastpath+0x16/0x1b [ 1271.563889] ---[ end trace 2327ac1a479ad52b ]--- Larry _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel