Public bug reported:
Using quantal, up to date on 4 June 2012.
System is a iMac 11,2 (mid 2010) with i3 processor, 4 GB memory and Mobility
Radeon 4670 video.
Currently booted into gnome desktop (Ubuntu 12.10 (quantal) using efi stub boot
on 3.4.0-3 kernel (first time I've been able to do this). Other ways of booting
have been tried but don't change this problem.
The graphics driver in use is uncertain. I couldn't get fglrx to compile
against this kernel so I set the xorg device to 'fbdev'.
Windows move easily on screen and there doesn't seem to be any lag in redraws.
I'd say the desktop is as responsive as OSX.
When I want to resize a window, by click-drag an edge or corner of the window,
the mouse pointer jumps around and is almost impossible to control. The mouse
pointer is not good compared with OSX pointer handling.
I have tried to disable overlay scrollbars using
sudo echo "export LIBOVERLAY_SCROLLBAR=0" >
/etc/X11/Xsession.d/80overlayscrollbars
and rebooting. The scrollbars are now old-style but problem still there.
This could be a gnome or xorg setting that I don't know about. Mouse
acceleration and sensitivity are both minimum, drag and drop threshold
is max.
This poor pointer control was present on 12.04 but didn't seem so severe as it
is now.
I regard this as a major fault in usability for the desktop.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.4.0-3.8-generic 3.4.0
Uname: Linux 3.4.0-3-generic x86_64
ApportVersion: 2.1.1-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Jun 5 11:13:06 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: fglrx, 8.960: added
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
Advanced Micro Devices [AMD] nee ATI RV730 XT [Mobility Radeon HD 4670]
[1002:9488] (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:00b6]
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120509)
MachineType: Apple Inc. iMac11,2
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: vmlinuz-3.4.0-3-generic
root=UUID=268e7eb7-d871-478c-a906-b719eea881ea ro nosplash
initrd=EFI\quantal\initrd.img-3.4.0-3-generic
SourcePackage: xorg
Symptom: display
UnitySupportTest:
Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with
exit code 1: X Error of failed request: BadRequest (invalid request code or no
such operation)
Major opcode of failed request: 135 (GLX)
Minor opcode of failed request: 19 (X_GLXQueryServerString)
Serial number of failed request: 22
Current serial number in output stream: 22
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/09/11
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM112.88Z.0057.B01.1112090906
dmi.board.name: Mac-F2238AC8
dmi.board.vendor: Apple Inc.
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2238AC8
dmi.modalias:
dmi:bvnAppleInc.:bvrIM112.88Z.0057.B01.1112090906:bd12/09/11:svnAppleInc.:pniMac11,2:pvr1.0:rvnAppleInc.:rnMac-F2238AC8:rvr:cvnAppleInc.:ct13:cvrMac-F2238AC8:
dmi.product.name: iMac11,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.7.8-0ubuntu3
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu11
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20120322+ab7291d-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal reproducible ubuntu
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https://bugs.launchpad.net/bugs/1008935
Title:
Window edges difficult to catch and drag by mouse pointer
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