Date: Thu, 24 Sep 2009 20:10:00 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r197468 - head/sys/dev/fb Message-ID: <200909242010.n8OKA0nl006437@svn.freebsd.org>
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Author: jkim Date: Thu Sep 24 20:10:00 2009 New Revision: 197468 URL: http://svn.freebsd.org/changeset/base/197468 Log: Some broken VESA BIOSes, e.g., IBM T23, return wrong value from vesa_bios_get_line_length() in graphics mode. Always calculate the value from known video info instead. Submitted by: paradox (ddkprog yahoo com) Modified: head/sys/dev/fb/vesa.c Modified: head/sys/dev/fb/vesa.c ============================================================================== --- head/sys/dev/fb/vesa.c Thu Sep 24 19:42:56 2009 (r197467) +++ head/sys/dev/fb/vesa.c Thu Sep 24 20:10:00 2009 (r197468) @@ -1132,10 +1132,8 @@ vesa_set_mode(video_adapter_t *adp, int vesa_adp->va_window_gran = info.vi_window_gran; } vesa_adp->va_window_orig = 0; - len = vesa_bios_get_line_length(); - if (len > 0) { - vesa_adp->va_line_width = len; - } else if (info.vi_flags & V_INFO_GRAPHICS) { + + if (info.vi_flags & V_INFO_GRAPHICS) { switch (info.vi_depth/info.vi_planes) { case 1: vesa_adp->va_line_width = info.vi_width/8; @@ -1161,6 +1159,9 @@ vesa_set_mode(video_adapter_t *adp, int } } else { vesa_adp->va_line_width = info.vi_width; + len = vesa_bios_get_line_length(); + if (len > 0) + vesa_adp->va_line_width = len; } vesa_adp->va_disp_start.x = 0; vesa_adp->va_disp_start.y = 0;
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