Dear list, when enlarging text in LibreOffice Writer (e.g. 96pt) so that the characters fill the screen, the X server reproducibly crashes. I'm running Debian sid with the package xorg-server 21.1.7-1. Hardware is a ThinkPad T410 with integrated Intel graphics.
Xorg.0.log: ########### [ 331.177] Failed to compile FS: 0:1(10): error: GLSL 1.30 is not supported. Supported versions are: 1.10, 1.20, and 1.00 ES [ 331.177] Program source: #version 130 #ifdef GL_ES precision mediump float; #endif #define RepeatNone 0 #define RepeatNormal 1 #define RepeatPad 2 #define RepeatReflect 3 #define RepeatFix 10 uniform int source_repeat_mode; uniform int mask_repeat_mode; vec2 rel_tex_coord(vec2 texture, vec4 wh, int repeat) { vec2 rel_tex; rel_tex = texture * wh.xy; if (repeat == RepeatFix + RepeatNone) return rel_tex; else if (repeat == RepeatFix + RepeatNormal) rel_tex = floor(rel_tex) + (fract(rel_tex) / wh.xy); else if (repeat == RepeatFix + RepeatPad) { if (rel_tex.x >= 1.0) rel_tex.x = 1.0 - wh.z * wh.x / 2.; else if (rel_tex.x < 0.0) rel_tex.x = 0.0; if (rel_tex.y >= 1.0) rel_tex.y = 1.0 - wh.w * wh.y / 2.; else if (rel_tex.y < 0.0) rel_tex.y = 0.0; rel_tex = rel_tex / wh.xy; } else if (repeat == RepeatFix + RepeatReflect) { if ((1.0 - mod(abs(floor(rel_tex.x)), 2.0)) < 0.001) [ 331.177] (EE) Fatal server error: [ 331.177] (EE) GLSL compile failure [ 331.177] (EE) [ 331.177] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 331.177] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 331.177] (EE) [ 331.177] (II) AIGLX: Suspending AIGLX clients for VT switch [ 331.243] (EE) Server terminated with error (1). Closing log file. #################### Disabling "glamor" with a configuration file in /etc/X11/xorg.conf.d/ solves this and the X server does not crash: ##### Section "Device" Identifier "" Driver "modesetting" Option "Accelmethod" "none" EndSection Section "Module" Disable "glamoregl" EndSection ##### If anybody is experiencing the same issue, this is the upstream bug: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1336 A fix has been merged recently: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1066 I have not been able to test it yet. Regards, Stefan