xorg with i915kms crashes with GLSL compile failure when xsane starts

[tech-lists]

Hi,




This almost exact bug (xorg/i915kms) was patched/resolved in 2016 on
debian according to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=834054


context:

12.0-STABLE r346338 GENERIC amd64

packages installed via pkg from default freebsd repos
nothing xorg related has been manually defined

drm-kmod-g20181126 (which has installed
drm-fbsd12.0-kmod-4.16.g20190305)
x11/xorg
x11/mate
graphics/xsane

The machine itself is quite old (c. 2010) but xorg/i915kms works fine on it


xorg error:

0:13(14): error: operands to arithmetic operators must be numeric
0:13(13): error: operands to arithmetic operators must be numeric

[  1338.766] Program source:
#define ATLAS_DIM_INV 0.000976562500000000
attribute vec2 primitive;
attribute vec2 source;
varying vec2 glyph_pos;
uniform vec2 fill_offset;
uniform vec2 fill_size_inv;
varying vec2 fill_pos;
uniform vec4 v_matrix;
void main() {
      gl_Position.xy = primitive.xy * v_matrix.xz + v_matrix.yw;
      gl_Position.zw = vec2(0.0,1.0);
      glyph_pos = source.xy * ATLAS_DIM_INV;
      fill_pos = (fill_offset + primitive.xy + pos) * fill_size_inv;
}

[  1338.766] (EE) GLSL compile failure

I'm not sure whether this should go here or should I raise a bug or directly raise the issue with xorg? my issue is slightly different in that I'm using FreeBSD and it happens only when xsane starts and regardless of whether the scanner is even plugged in. otherwise for stuff like firefox/libreoffice. It has 8GB ram and runs zfs. The crash happens shortly after xsane is started. [ 1338.766] (EE) Fatal server error: [ 1338.766] (EE) [ 1338.766] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org

        for help.
[  1338.766] (EE) Please also check the log file at
"/var/log/Xorg.0.log" for additional information.

[  1338.772] (EE) Server terminated with error (1). Closing log file.

in the meantime I'm going to try building xorg/xsane from the ports

thanks,
--
J.

[ 1338.767] (EE) [ 1338.767] (II) AIGLX: Suspending AIGLX clients for VT switch

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