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[Launchpad Bug Tracker <539163@xxxxxxxxxxxxxxxxxx>]

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Ubuntu Lucid Lynx, kernel 2.6.32.xx

Zooming in with Super+Scroll causes the screen to become very dark,
practically unreadable. Adjusting Fn+Brightness doesn't fix this,
although I can tell the brightness changing slightly. The same thing
happens when changing workspaces (Ctrl+Alt+-> or Ctrl+Alt+<-), dragging
a window from one workspace to another, or using Expo (Super+E) to view
all workspaces simultaneously. Returning to normal zoom level will
always restore the correct level of brightness immediately,
corresponding to how it might have been adjusted during black out. I
also noticed that the cursor will stay bright against the dark
background.

I reported this bug against the kernel because with the mainline kernel
there were no issues with brightness (albeit, there are some other
issues). A bug report against the X.org Radeon driver is at
https://bugs.freedesktop.org/show_bug.cgi?id=25883

Attachments to follow...
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  andreas    1416 F.... pulseaudio
CRDA: Error: [Errno 2] Tiedostoa tai hakemistoa ei ole
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 7'
   Mixer name	: 'SigmaTel STAC9750,51'
   Components	: 'AC97a:83847650'
   Controls      : 38
   Simple ctrls  : 24
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=30e3faba-8e9e-4616-97ab-aae747c6a3b5
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
MachineType: Dell Computer Corporation Latitude D600
Package: linux (not installed)
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
   manfid: 0xffff, 0x0001
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   5.0V 16-bit PC Card
   Subdevice 0 (function 0) [unbound]
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=99ec916b-a551-4e75-85d2-60d165d6e870 ro quiet splash
ProcEnviron:
 LANG=fi_FI.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: No
RelatedPackageVersions: linux-firmware 1.32
Reproducible: Yes
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
Tags: lucid needs-upstream-testing
TestedUpstream: No
Uname: Linux 2.6.32-16-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 06/29/2005
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A16
dmi.board.name: 0D2125
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias: dmi:bvnDellComputerCorporation:bvrA16:bd06/29/2005:svnDellComputerCorporation:pnLatitudeD600:pvr:rvnDellComputerCorporation:rn0D2125:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Latitude D600
dmi.sys.vendor: Dell Computer Corporation

** Affects: xserver-xorg-driver-ati
     Importance: Unknown
         Status: Unknown

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Invalid


** Tags: amd64 apport-collected i386 lucid radeon xorg-needs-kernel-fix
-- 
[Legacy Radeon cards] Desktop effects/compiz: display brightness fluctuation with zoom, workspace switch or Expo
https://bugs.launchpad.net/bugs/539163
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