Control: severity -1 critical Control: tags -1 upstream patch Source: linux Followup-For: Bug #925908 Justification: breaks the whole system
Please backport [9fa246256] to buster, see [xserver summary] for details. The symptom is booting to a blank VT7 with the cursor not flashing, other virtual consoles work fine, nomodeset does not help. Bumped severity because there's no end-user workaround and does not complete the full boot process. I have downgraded from snapshot: echo 'deb [check-valid-until=no] https://snapshot.debian.org/archive/debian/20190326T095837Z/ buster main' \ | sudo tee /etc/apt/sources.list.d/snapshot.list sudo apt update sudo apt install linux-image-amd64=4.19+102 I've included some debug messages from various logs that were misleading because debian bugs seem to be well indexed by search engines. [9fa246256]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9fa246256e09dc30820524401cdbeeaadee94025 [xserver summary]: https://gitlab.freedesktop.org/xorg/xserver/issues/542#note_164738 -- Phil Morrell (emorrp1) lspci/lscpu 00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21) Model name: Intel(R) Celeron(R) CPU N3050 @ 1.60GHz .local/share/xorg/Xorg.1.log after sudo startx: [ 1308.631] (EE) modeset(0): failed to set mode: Invalid argument [ 1308.632] (EE) Fatal server error: [ 1308.632] (EE) EnterVT failed for screen 0 [ 1308.632] (EE) [ 1308.632] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 1308.633] (EE) Please also check the log file at "/home/emorrp1/.local/share/xorg/Xorg.1.log" for additional information. /var/log/lightdm/seat0-greeter.log ** (lightdm-gtk-greeter:11572): WARNING **: [PIDs] Failed to execute command: upstart lightdm.service starts successfully -- System Information: Debian Release: 10.0 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-5-amd64 (SMP w/2 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled