<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [regression] changing resolution hangs the display on Lenovo Thinkpad p51" href="https://bugs.freedesktop.org/show_bug.cgi?id=102722#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [regression] changing resolution hangs the display on Lenovo Thinkpad p51" href="https://bugs.freedesktop.org/show_bug.cgi?id=102722">bug 102722</a> from <a class="email" href="mailto:charmer-freedesktop.org@punchdown.org" title="craig harmer <charmer-freedesktop.org@punchdown.org>"> craig harmer</a> <pre>Created <a href="attachment.cgi?id=134213" name="attach_134213" title="Kubuntu 16.04.3 /var/log/syslog including a "warning" with stack trace">attachment 134213</a> <a href="attachment.cgi?id=134213&action=edit" title="Kubuntu 16.04.3 /var/log/syslog including a "warning" with stack trace">[details]</a> Kubuntu 16.04.3 /var/log/syslog including a "warning" with stack trace interesting excerpt from /var/log/syslog. i don't remember exactly, but i was either trying to change the resolution on the laptop display or connect an external display: Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xrandr: XRandR::setConfig done! Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen: Primary output changed from KScreen::Output(Id: 99 , Name: "eDP-1" ) ( "eDP-1" ) to KScreen::Output(Id: 99 , Name: "eDP-1" ) ( "eDP-1" ) Aug 30 22:15:00 p51 kernel: [ 103.994111] nouveau 0000:01:00.0: disp: 0x6219[0]: INIT_GENERIC_CONDITON: unknown 0x07 Aug 30 22:15:00 p51 kernel: [ 104.069777] ------------[ cut here ]------------ Aug 30 22:15:00 p51 kernel: [ 104.069799] WARNING: CPU: 5 PID: 2205 at /build/linux-hwe-YA6IuF/linux-hwe-4.10.0/drivers/gpu/drm/nouveau/nouveau_bo.c:137 nouveau_bo_del_ttm+0x7f/0x90 [nouveau] Aug 30 22:15:00 p51 kernel: [ 104.069800] Modules linked in: rfcomm ccm bnep nls_iso8859_1 arc4 i2c_designware_platform i2c_designware_core iwlmvm snd_hda_codec_realtek intel_rapl snd_hda_codec_generic snd_seq_midi mac80211 snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel snd_hda_codec kvm_intel snd_hda_core snd_hwdep snd_pcm iwlwifi kvm snd_rawmidi cfg80211 irqbypass rtsx_pci_ms memstick uvcvideo joydev thinkpad_acpi videobuf2_vmalloc input_leds videobuf2_memops serio_raw videobuf2_v4l2 videobuf2_core nvram videodev media snd_seq snd_seq_device idma64 snd_timer btusb virt_dma btrtl mei_me shpchp mei ucsi intel_lpss_pci intel_pch_thermal snd hci_uart btbcm btqca btintel bluetooth soundcore intel_lpss_acpi intel_lpss tpm_crb mac_hid acpi_pad parport_pc ppdev lp parport autofs4 algif_skcipher af_alg Aug 30 22:15:00 p51 kernel: [ 104.069822] dm_crypt hid_generic usbhid nouveau rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc mxm_wmi i2c_algo_bit aesni_intel ttm drm_kms_helper aes_x86_64 crypto_simd e1000e syscopyarea glue_helper sysfillrect cryptd sysimgblt uas fb_sys_fops ptp psmouse nvme drm pps_core ahci rtsx_pci usb_storage nvme_core libahci wmi pinctrl_sunrisepoint i2c_hid video pinctrl_intel hid fjes Aug 30 22:15:00 p51 kernel: [ 104.069834] CPU: 5 PID: 2205 Comm: Xorg Not tainted 4.10.0-33-generic #37~16.04.1-Ubuntu Aug 30 22:15:00 p51 kernel: [ 104.069834] Hardware name: LENOVO 20HHCTO1WW/20HHCTO1WW, BIOS N1UET31W (1.05 ) 02/13/2017 Aug 30 22:15:00 p51 kernel: [ 104.069835] Call Trace: Aug 30 22:15:00 p51 kernel: [ 104.069838] dump_stack+0x63/0x90 Aug 30 22:15:00 p51 kernel: [ 104.069839] __warn+0xcb/0xf0 Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: RRNotify_CrtcChange Aug 30 22:15:00 p51 kernel: [ 104.069840] warn_slowpath_null+0x1d/0x20 Aug 30 22:15:00 p51 kernel: [ 104.069855] nouveau_bo_del_ttm+0x7f/0x90 [nouveau] Aug 30 22:15:00 p51 kernel: [ 104.069858] ttm_bo_release_list+0xb5/0x170 [ttm] Aug 30 22:15:00 p51 kernel: [ 104.069860] ttm_bo_release+0x1ae/0x240 [ttm] Aug 30 22:15:00 p51 kernel: [ 104.069861] ttm_bo_unref+0x24/0x30 [ttm] Aug 30 22:15:00 p51 kernel: [ 104.069875] nouveau_gem_object_del+0x9a/0xf0 [nouveau] Aug 30 22:15:00 p51 kernel: [ 104.069881] drm_gem_object_free+0x29/0x70 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069884] drm_gem_object_unreference_unlocked+0x3a/0xa0 [drm] Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: #011CRTC: 95 Aug 30 22:15:00 p51 kernel: [ 104.069887] drm_gem_object_handle_unreference_unlocked+0x65/0xb0 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069891] drm_gem_object_release_handle+0x53/0x90 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069894] drm_gem_handle_delete+0x5f/0x90 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069897] drm_gem_close_ioctl+0x20/0x30 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069901] drm_ioctl+0x21b/0x4d0 [drm] Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: #011Mode: 106 Aug 30 22:15:00 p51 kernel: [ 104.069904] ? drm_gem_handle_create+0x40/0x40 [drm] Aug 30 22:15:00 p51 kernel: [ 104.069906] ? signal_setup_done+0x6b/0xb0 Aug 30 22:15:00 p51 kernel: [ 104.069919] nouveau_drm_ioctl+0x68/0xc0 [nouveau] Aug 30 22:15:00 p51 kernel: [ 104.069921] do_vfs_ioctl+0xa1/0x5f0 Aug 30 22:15:00 p51 kernel: [ 104.069922] SyS_ioctl+0x79/0x90 Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: #011Rotation: "Rotate_0" Aug 30 22:15:00 p51 kernel: [ 104.069924] entry_SYSCALL_64_fastpath+0x1e/0xad Aug 30 22:15:00 p51 kernel: [ 104.069924] RIP: 0033:0x7ff294fdef07 Aug 30 22:15:00 p51 kernel: [ 104.069925] RSP: 002b:00007fff5686def8 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 Aug 30 22:15:00 p51 kernel: [ 104.069925] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007ff294fdef07 Aug 30 22:15:00 p51 kernel: [ 104.069926] RDX: 00007fff5686df30 RSI: 0000000040086409 RDI: 0000000000000018 Aug 30 22:15:00 p51 kernel: [ 104.069926] RBP: 00007fff5686de20 R08: 000055b1781bcd18 R09: 000000000000005b Aug 30 22:15:00 p51 kernel: [ 104.069926] R10: 000055b1781bf3c0 R11: 0000000000003246 R12: 00000000c06864a2 Aug 30 22:15:00 p51 kernel: [ 104.069927] R13: 0000000000000018 R14: 000055b17854a7c0 R15: 0000000000000000 Aug 30 22:15:00 p51 kernel: [ 104.069928] ---[ end trace 1a268d7d8bb56202 ]--- Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: #011Geometry: 0 0 1920 1080 Aug 30 22:15:00 p51 org.kde.KScreen[2281]: kscreen.xcb.helper: RRScreenChangeNotify</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>