X session does no more start after upgrade - hybrid-gfx no such file or directory

[Dash]

Hi,

Xorg.log finish with

[ 104.348] (II) config/udev: Adding input device HID 046d:c31b (/dev/input/mouse0)
[ 104.348] (II) No input driver specified, ignoring this device.
init: Failed to spawn hybrid-gfx main process: unable to execute: No such file or directory

as previous one which started OK finished with

[ 87.952] (II) config/udev: Adding input device HID 046d:c31b (/dev/input/mouse0)
[ 87.952] (II) No input driver specified, ignoring this device.
[ 87.952] (II) This device may have been added with another device file.
[ 101.619] (II) XKB: reuse xkmfile /var/lib/xkb/server-79DA8A0BAEB4CF1B2497C5C301111BA2CA0B8D85.xkm
[ 101.629] (II) XKB: reuse xkmfile /var/lib/xkb/server-79DA8A0BAEB4CF1B2497C5C301111BA2CA0B8D85.xkm
[ 103.104] (II) evdev: HID 046d:c31b: Close
[ 103.104] (II) UnloadModule: "evdev"
[ 103.104] (II) evdev: HID 046d:c31b: Close
[ 103.104] (II) UnloadModule: "evdev"
[ 103.104] (II) evdev: HID 046d:c31b: Close
[ 103.104] (II) UnloadModule: "evdev"
[ 103.104] (II) evdev: Power Button: Close
[ 103.104] (II) UnloadModule: "evdev"
[ 103.428] (II) MGA(0): UNMAPPING framebuffer 0x7F8E49569000, 0x7F0000.
[ 103.483] (EE) Server terminated successfully (0). Closing log file.

/etc/init/hybrid-gfx.conf
start on (starting lightdm
          or starting kdm
          or starting xdm
          or starting lxdm)
task
exec hybrid-detect

But no hybrid-detect script or binary

dh@srvfwstr:/etc/init$ lsb_release -rd
Description: Ubuntu 14.04.5 LTS
Release: 14.04

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 4.4.0-112.135~14.04.1-generic 4.4.98
Uname: Linux 4.4.0-112-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.27
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
Date: Wed Feb 21 18:59:15 2018
DistUpgraded: 2017-11-04 16:16:22,019 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
 Matrox Electronics Systems Ltd. MGA G200eW WPCM450 [102b:0532] (rev 0a) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:04dd]
MachineType: Dell Inc. PowerEdge R210 II
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-112-generic root=/dev/mapper/vg0-DomU0 ro
Renderer: Software
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2017-11-04 (109 days ago)
dmi.bios.date: 07/11/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.5.1
dmi.board.name: 03X6X0
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.5.1:bd07/11/2013:svnDellInc.:pnPowerEdgeR210II:pvr:rvnDellInc.:rn03X6X0:rvrA06:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R210 II
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.11.3+14.04.20160425-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.14.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.6
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.6
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.11
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Mon Feb 19 12:43:47 2018
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input HID 046d:c31b KEYBOARD, id 7
 input HID 046d:c31b KEYBOARD, id 8
 input HID 046d:c31b MOUSE, id 9
xserver.errors:
 open /dev/dri/card0: No such file or directory
 MGA(0): Static buffer allocation failed, not initializing the DRI
 MGA(0): Need at least 9216 kB video memory at this resolution, bit depth
 AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu2.11

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to review all reported bugs in a timely manner.

Ubuntu 14.04 (trusty) reached end-of-standard-support on April 25, 2019.

I'm setting the status of this bug to 'Incomplete' as it's not seen any activity for some time. If this bug report has any relevance when using a currently maintained release of Ubuntu then please let us know which one(s) otherwise this bug report can be left to expire in approximately 60 days time.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]