I type quite fast, with lots of non-latin unicode characters. I set up .XCompose to map <alt> <g> <a> to the Greek letter α, <alt> <g> <b> to the Greek letter β, etc. Typing the first at any speed renders letter α. But one has to noticably slow down to make sure that <alt> <g> <b> indeed gives β, and not (now typed at full speed) "b". This is not a question of proximity between keyboard keys since <g> <f>, <g> <h>, <g> <v>, etc are as close together as <g> <b> and produce at any speed: φηϖντψ etc.
I have not checked if the bug exists for non-Greek characters.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Wed Jun 3 10:14:26 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
vboxhost, 4.3.16, 3.13.0-34-generic, x86_64: installed
vboxhost, 4.3.16, 3.13.0-36-generic, x86_64: installed
vboxhost, 4.3.16, 3.13.0-43-generic, x86_64: installed
vboxhost, 4.3.16, 3.13.0-44-generic, x86_64: installed
vboxhost, 4.3.16, 3.13.0-45-generic, x86_64: installed
DpkgLog:
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:05a4]
InstallationDate: Installed on 2014-08-18 (288 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Dell Inc. OptiPlex 9020
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-45-generic root=UUID=7c0c978a-58f2-48ee-a21a-9a81a65eebf2 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/25/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0PC5F7
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd04/25/2014:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn0PC5F7:rvrA03:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 9020
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.11.3+14.04.20141104-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
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 2:2.99.910-0ubuntu1.4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Wed Jun 3 10:10:10 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 41111
vendor DEL
xserver.version: 2:1.15.1-0ubuntu2.7
Followed your procedure, updating BIOS:
>sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A12
05/06/2015
So BIOS update successful.
no change in bug: b vs β at different typing speeds.
Thank you for taking this on; I do understand tha there are much more urgent bugs...