[Bug 104866] xf86-video-intel driver is causing logout loop because libc.so.6 conflict on Ubuntu 17.10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104866

--- Comment #7 from Hector Velazquez <hector.franciscox.velazquez.suriano at intel.com> ---
This error has senn on BXT QA 

The system perform a logout closing all windows and programs running before the
action.
Suspecting of the way the the driver is handling video drivers
(xf86-video-intel).

software:

OS= Ubuntu 17.10 Artful x86-64
Kernel = Linux gfx-desktop 4.16.0-041600-generic #201804012230 SMP Sun Apr 1
22:31:39 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
3D:
Mesa = 18.0.0
2D:vainfo
xf86-video-intel = 2.99.917
Xorg/xserver =  1.19.99.901
Cairo =   1.15.10
Cross-driver middleware:
libdrm =  2.4.91
Media:
intel-vaapi-driver =  2.1.0 <- other version
libva = 2.1.0
libva-utils = 2.1.0
Validation Tools:
intel-gpu-tools = 1.22
firmware: 
DMC 1.07
GuC 9.29
HuC 1.07.1398

Xorg log sample:
. . .
   104.759] (EE) 0: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_accel_flush+0x270) [0x7fab749c8f50]
[   104.760] (EE) 1: /usr/lib/xorg/modules/drivers/intel_drv.so
(sna_shm_flush_callback+0x1c) [0x7fab749c8ffc]
[   104.763] (EE) 2: /usr/bin/Xorg (_CallCallbacks+0x34) [0x55c485fe9fa4]
[   104.764] (EE) 3: /usr/bin/Xorg (FlushClient+0x78) [0x55c486138a58]
[   104.764] (EE) 4: /usr/bin/Xorg (WriteToClient+0x20e) [0x55c48613908e]
[   104.764] (EE) 5: /usr/bin/Xorg (WriteEventsToClient+0x272) [0x55c485ff01d2]
[   104.765] (EE) 6: /usr/bin/Xorg (ProcShmPutImage+0x3a7) [0x55c48607b717]
[   104.765] input-thread: InputThreadDoWork waiting for devices
[   104.765] (EE) 7: /usr/bin/Xorg (ProcShmDispatch+0x1d5) [0x55c48607cd25]
[   104.766] (EE) 8: /usr/bin/Xorg (Dispatch+0x308) [0x55c485fe4c28]
[   104.766] (EE) 9: /usr/bin/Xorg (dix_main+0x388) [0x55c485fe8c48]
[   104.767] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf1)
[0x7fab788821c1]
[   104.767] (EE) 11: /usr/bin/Xorg (_start+0x2a) [0x55c485fd28da]
[   104.768] (EE) 12: ? (?+0x0) [0x0]
[   104.769] (EE) 
[   104.769] (EE) 
Fatal server error:
[   104.769] (EE) sna_accel_flush:17403 assertion '!ret || priv->gpu_bo ==
NULL' failed
[   104.769] (EE) 
[   104.769] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
[   104.769] (EE) Please also check the log file at
"/home/gfx/.local/share/xorg/Xorg.0.log" for additional information.
[   104.769] (EE) 
[   104.769] (II) AIGLX: Suspending AIGLX clients for VT switch
[   104.811] ACPI: Closing device
[   104.884] (EE) Server terminated with error (1). Closing log file.. . .

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