Public bug reported:
I have installed 18.04.1 server on Intel NUC NUC8i5BEH with minimal xinit and
xserver-xorg-video-intel. But it has 2 major issues:
1. Huge Xorg CPU usage with intel driver...more than 110% on glxgears without
vsync (with modesetting driver Xorg has zero CPU usage and very good Opengl
performance)
2. on DRI3 glxgears it skip most frames and display one frame every 60-70
frames but reported FPS is doubled than on DRI2
to reproduce a problem install fresh server image of 18.04 and then
install minimal xinit+xserver-xorg-video-intel. Put 20-intel.conf to
enable intel driver. Run X by startx and then run glxgears.
20-intel.conf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
# Option "DRI" "3"
EndSection
P.S. Before 18.04 I tried 16.04 with HWE kernel...on stock Xserver and
Intel driver it just crash. On latest HWE xserver and HWE Intel driver
it works the same as 18.04 because it has the same versions. But with
old 1.18 xserver and HWE intel driver it works in DRI2 mode...Xorg CPU
usage just 10% instead of 110% on xserver 1.19...The only problem - poor
OPENGL performance (glxgears 5400 fps vs 8000 fps on 1.19 xserver)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
Date: Fri Oct 12 17:27:34 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Device [8086:3ea5] (rev 01) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device [8086:2074]
MachineType: Intel(R) Client Systems NUC8i5BEH
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic
root=UUID=b5cc483d-ce2c-11e8-9739-94c691a2ff22 ro
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/19/2018
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0048.2018.0919.2013
dmi.board.name: NUC8BEB
dmi.board.vendor: Intel Corporation
dmi.board.version: J72692-303
dmi.chassis.type: 3
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias:
dmi:bvnIntelCorp.:bvrBECFL357.86A.0048.2018.0919.2013:bd09/19/2018:svnIntel(R)ClientSystems:pnNUC8i5BEH:pvrJ72747-302:rvnIntelCorporation:rnNUC8BEB:rvrJ72692-303:cvnIntelCorporation:ct3:cvr2.0:
dmi.product.family: Intel NUC
dmi.product.name: NUC8i5BEH
dmi.product.version: J72747-302
dmi.sys.vendor: Intel(R) Client Systems
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic ubuntu
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1797604
Title:
Xserver opengl problems on i5-8259U
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1797604/+subscriptions
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