Seeing this issue on gnome shell after recent 17.10 upgrade from 16.04 LTS. Anytime the screen turns off, my gnome session crashes.
// seems like everything up to date with these except for xorg sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade $ cat /proc/version Linux version 4.13.0-37-generic (buildd@lcy01-amd64-026) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3.2)) #42-Ubuntu SMP Wed Mar 7 14:13:23 UTC 2018 [63316.108041] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [81819.033174] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [81828.179633] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [81828.179726] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [81828.208165] gnome-shell[2815]: segfault at 38 ip 00007f039c0bac30 sp 00007ffcecb5f918 error 4 in libmutter-1.so.0.0.0[7f039c068000+141000] [81828.318684] rfkill: input handler enabled [81828.328347] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [81828.328387] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [81828.328392] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [81828.382297] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [81828.382318] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [81831.917503] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [81831.984981] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [81879.389515] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [81880.918441] rfkill: input handler disabled ------ [82380.490818] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [82380.490848] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [82380.522584] gnome-shell[26432]: segfault at 18 ip 00007f433fedfd94 sp 00007fffac254b88 error 4 in libmutter-1.so.0.0.0[7f433fe41000+141000] [82380.633077] rfkill: input handler enabled [82384.241961] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [82384.319360] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [82403.842828] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [82406.263963] rfkill: input handler disabled ------ [83520.980283] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [83520.980375] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [83521.030747] gnome-shell[28547]: segfault at 204 ip 0000000000000204 sp 00007fff0db270d8 error 14 [83521.142243] rfkill: input handler enabled [83521.146802] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [83521.146837] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [83521.146842] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [83521.200710] [drm:drm_scdc_set_high_tmds_clock_ratio [drm_kms_helper]] *ERROR* Failed to read tmds config, err=-6 [83521.200729] [drm:intel_hdmi_handle_sink_scrambling [i915]] *ERROR* Set TMDS ratio failed [83524.729044] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [83524.791074] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. [83537.884721] [drm:drm_add_edid_modes.part.27 [drm]] *ERROR* Unknown HDMI VIC: 0 [83539.367993] rfkill: input handler disabled [83545.807155] sd 2:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [83545.807160] sd 2:0:0:0: [sda] tag#0 Sense Key : Not Ready [current] [83545.807164] sd 2:0:0:0: [sda] tag#0 Add. Sense: Medium not present [83545.807169] sd 2:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 00 20 00 00 00 01 00 [83545.807171] print_req_error: I/O error, dev sda, sector 8192 [83545.807191] FAT-fs (sda1): unable to read boot sector -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1721428 Title: Artful (17.10) Session logout after screen turned off To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1721428/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs