View Full Version : [all variants] ATI Radeon Mobility 5400 Loss of Colour Depth after Maverick install

October 27th, 2010, 10:10 PM
Hey Guys,

Since installing Maverick I've noticed that my colour depth is a lot lower than it was on Lucid. There's severe banding everywhere and I can't see any settings in the Catalyst Control Center that affect this issue. I'm dual booting Windows 7 and everything displays correctly there so I can be sure it's not a screen/hardware fault.

Has anyone else experienced this or found a solution? Any help is much appreciated.

November 4th, 2010, 03:36 PM
I've also just noticed that the colour depth is fine when the laptop boots up, and degradation only occurs after the screensaver (in my case a blank screen) activates. Has no one else experienced this issue?

November 15th, 2010, 06:01 PM
I noticed exactly the same problem on my Acer 5024wlmi with ATI X700 Mobile, on Ubuntu 10.10 Maverick.

November 25th, 2010, 02:45 AM
I have the same problem in my Sony vaio VPCEB1Z1E with radeon HD 5600

March 25th, 2011, 10:30 AM
Ati Radeon HD 6370M, i3 2 core Ubuntu 10.10, latest kernel update,
Tried different settings in /etc/default/acpi-support and none worked.
Actually I don't know if they would anyway because Ubuntu 10.10 is using the gnome-power-manager daemon and that sets the flag in /etc/acpi/lid.sh and sleep.sh and so on, that disables the scripts(they actually don't do anything)
So... How to change that and where to look? Sources of the gnome-power-manager?
Does it use scripts to do the things it does or is it hard-coded?
If scripts, where are they?
in /usr/share/gnome-power-manager/ is only the bugreporting script.

Distro version: DISTRIB_ID=Ubuntu
Kernel version: 2.6.35-28-generic
g-p-m version: 2.32.0
HAL version: ./gnome-power-bugreport: 49: lshal: not found
System manufacturer: missing
System version: missing
System product: missing
AC adapter present: ./gnome-power-bugreport: 59: hal-find-by-capability: not found
Battery present: ./gnome-power-bugreport: 62: hal-find-by-capability: not found
Laptop panel present: ./gnome-power-bugreport: 65: hal-find-by-capability: not found
CPU scaling present: ./gnome-power-bugreport: 68: hal-find-by-capability: not found
Battery Information:
./gnome-power-bugreport: 71: lshal: not found
UPower data:
Device: /org/freedesktop/UPower/devices/line_power_AC0
native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/ACPI0003:00/power_supply/AC0
power supply: yes
updated: Fri Mar 25 10:11:07 2011 (812 seconds ago)
has history: no
has statistics: no
online: yes

Device: /org/freedesktop/UPower/devices/battery_BAT0
native-path: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0
vendor: ASUSTek
model: K72J-44
power supply: yes
updated: Fri Mar 25 10:24:13 2011 (26 seconds ago)
has history: yes
has statistics: yes
present: yes
rechargeable: yes
state: fully-charged
energy: 47.278 Wh
energy-empty: 0 Wh
energy-full: 48.389 Wh
energy-full-design: 48.4 Wh
energy-rate: 0 W
voltage: 12.466 V
percentage: 97.704%
capacity: 99.9773%
technology: lithium-ion

daemon-version: 0.9.5
can-suspend: yes
can-hibernate yes
on-battery: no
on-low-battery: no
lid-is-closed: no
lid-is-present: yes
GNOME Power Manager Process Information:
sivael 1973 0.0 0.2 307188 12324 ? Sl 10:11 0:00 \_ gnome-power-manager
HAL Process Information:

it's weird how the hal-find-by-cap... doesn't return the capabilities that are actually there.

Going to sleep and waking the comp up fixes the color depth.
Hibernating as well (and yes, I had to fix those b/c the laptop didn't go to sleep properly :/)

So.... any ideas? I frequently leave my laptop for downloading over night(it's not as loud as my main comp with UPS and stuff) and I close the lid. Also, when I move my laptop I close the lid and don't want the system to go to sleep but just turn off the panel.


May 19th, 2011, 08:33 PM

Anyone figured out this problem?