Upstream says:
"Resolving as fixed with the Xwayland Present implementation in 1.20"
So fixed in cosmic.
** Changed in: xorg-server (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1746163
Title:
GLX apps are swapping at the wrong refresh rate under Xwayland
Status in X.Org X server:
Fix Released
Status in xorg-server package in Ubuntu:
Fix Released
Bug description:
GLX apps are swapping at the wrong refresh rate under Xwayland.
My monitor runs at 59.95Hz and this is what I see:
Xwayland:
$ glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
428 frames in 5.0 seconds = 85.552 FPS
300 frames in 5.0 seconds = 59.993 FPS
301 frames in 5.0 seconds = 60.006 FPS
301 frames in 5.0 seconds = 59.983 FPS
301 frames in 5.0 seconds = 60.016 FPS WRONG
300 frames in 5.0 seconds = 59.999 FPS
300 frames in 5.0 seconds = 59.986 FPS
301 frames in 5.0 seconds = 60.004 FPS
301 frames in 5.0 seconds = 60.002 FPS
300 frames in 5.0 seconds = 59.998 FPS
$ weston-info | grep refresh
width: 1920 px, height: 1200 px, refresh: 59.950 Hz,
Xorg:
$ glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
481 frames in 5.0 seconds = 96.146 FPS
300 frames in 5.0 seconds = 59.952 FPS
300 frames in 5.0 seconds = 59.956 FPS
300 frames in 5.0 seconds = 59.943 FPS
300 frames in 5.0 seconds = 59.948 FPS RIGHT
300 frames in 5.0 seconds = 59.953 FPS
300 frames in 5.0 seconds = 59.951 FPS
300 frames in 5.0 seconds = 59.949 FPS
300 frames in 5.0 seconds = 59.956 FPS
300 frames in 5.0 seconds = 59.947 FPS
300 frames in 5.0 seconds = 59.952 FPS
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xwayland 2:1.19.5-0ubuntu2
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.8-0ubuntu6
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
Date: Tue Jan 30 13:30:34 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Xeon E3-1200 v3 Processor Integrated Graphics Controller
[8086:041a] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Lenovo Xeon E3-1200 v3 Processor Integrated Graphics Controller
[17aa:30a1]
InstallationDate: Installed on 2017-12-12 (48 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20171211)
MachineType: LENOVO 30AJS05700
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-25-generic.efi.signed
root=UUID=f9fe7460-9c41-4d4a-8376-e5ceb57bbec8 ro quiet splash vt.handoff=1
SourcePackage: xorg-server
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/02/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: FBKTB6AUS
dmi.board.name: SHARKBAY
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50519 PRO
dmi.chassis.type: 7
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnLENOVO:bvrFBKTB6AUS:bd08/02/2015:svnLENOVO:pn30AJS05700:pvrThinkStationP300:rvnLENOVO:rnSHARKBAY:rvrSDK0E50519PRO:cvnToBeFilledByO.E.M.:ct7:cvrToBeFilledByO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: 30AJS05700
dmi.product.version: ThinkStation P300
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.13.1+18.04.20171116-0ubuntu1
version.libdrm2: libdrm2 2.4.89-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu2
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
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