Hi everyone, 
i'm getting gpu resets when working with Microsft Excel 2007 over rdesktop.

This causes the GPU to reset until the computer crashes completely and returns to the screen session.
it only happens when there is colors in the cells, if not it doesn't crash.
So if i set set the parameter a (colour depth) to 24 bits this happens less but it crashes anyway.

-Debian 9.1 
-system architecture :x86_64
-Display connector: DP
-Mother board:
 Handle 0x0002, DMI type 2, 15 bytes
 Base Board Information
        Manufacturer: LENOVO
        Product Name: 30D2
        Version: SDK0J40697 WIN 3305033032255
        Serial Number:
        Asset Tag:
        Features:
          Board is a hosting board
          Board is replaceable
        Location In Chassis: Default string
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0
- Kernel version: 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19) x86_64 GNU/Linux
rdesktop 1.8.3-2+b1

Details in the logs : 
Nov 16 11:38:16 USERX kernel: [13205.906830] [drm] GPU HANG: ecode 9:0:0x86dffffd, in Xorg [697], reason: Hang on render ring, action: reset
Nov 16 11:38:16 USERX kernel: [13205.906833] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
Nov 16 11:38:16 USERX kernel: [13205.906834] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Nov 16 11:38:16 USERX kernel: [13205.906835] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
Nov 16 11:38:16 USERX kernel: [13205.906837] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Nov 16 11:38:16 USERX kernel: [13205.906838] [drm] GPU crash dump saved to /sys/class/drm/card0/error
Nov 16 11:38:16 USERX kernel: [13205.906903] drm/i915: Resetting chip after gpu hang
Nov 16 11:38:16 USERX kernel: [13205.906972] [drm] RC6 on
Nov 16 11:38:16 USERX kernel: [13205.921260] [drm] GuC firmware load skipped
Nov 16 11:38:28 USERX kernel: [13217.905687] drm/i915: Resetting chip after gpu hang
Nov 16 11:38:28 USERX kernel: [13217.905754] [drm] RC6 on
Nov 16 11:38:28 USERX kernel: [13217.917850] [drm] GuC firmware load skipped
Nov 16 11:38:28 USERX org.a11y.atspi.Registry[914]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Nov 16 11:38:28 USERX org.a11y.atspi.Registry[914]:       after 16426 requests (16426 known processed) with 0 events remaining.
Nov 16 11:38:28 USERX org.a11y.atspi.Registry[842]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Nov 16 11:38:28 USERX org.a11y.atspi.Registry[842]:       after 16440 requests (16440 known processed) with 0 events remaining.
Nov 16 11:38:28 USERX systemd[1]: Stopping User Manager for UID 111...
Nov 16 11:38:28 USERX systemd[815]: Stopping D-Bus User Message Bus...
Nov 16 11:38:28 USERX systemd[815]: Stopped target Default.
Nov 16 11:38:28 USERX systemd[815]: Stopping Virtual filesystem service...
Nov 16 11:38:28 USERX systemd[815]: Stopped D-Bus User Message Bus.
Nov 16 11:38:28 USERX systemd[815]: Stopped Virtual filesystem service.
Nov 16 11:38:28 USERX systemd[815]: Stopped target Basic System.
Nov 16 11:38:28 USERX systemd[815]: Stopped target Timers.