Tag Archive for 'nvidia'

Kororaa Beta2 bug fixes

Published on 20 February, 2011 in FOSS and Kororaa. 0 Comments Tags: , , , , , , , , .

If you’re running Kororaa Beta2, there are a few bugs which require fixing.

Yum
Firstly, the KDE version incorrectly included Yum from Rawhide (development) tree (GNOME version does not have this issue). This means you are running an untested version of Yum, the system’s default package manager.

To fix this, disable the repo (or remove the repository file for it), then downgrade yum to the stable version.
sudo sed -i 's/enabled=1/enabled=0/g' /etc/yum.repos.d/fedora-yum-rawhide.repo
sudo yum downgrade yum

Livna
The Livna repository, which is configured out of the box, seems to be having lots of problems with availability. This will be fixed in the next release, but in the mean time, you can disable or remove that repository.
sudo sed -i 's/enabled=1/enabled=0/g' /etc/yum.repos.d/livna.repo

If you find any more issues, please let us know!

Samsung R480 laptop LCD brightness

Published on 10 July, 2010 in FOSS. 1 Comment Tags: , , , , , , .

Mendy got a Samsung R480 laptop but screen brightness did not work properly. Using KDE’s brightness slider caused the screen to flicker horribly and once you let go, it’s too dark. GNOME’s just doesn’t work at all.

After a suspend and resume with the Nouveau driver, the slider works properly, but only goes to half brightness at the maximum setting. It was possible to set the brightness manually via:
echo -n 60 > /proc/acpi/video/NVID/LCD/brightness

That was not suitable. So I switched to the NVIDIA driver, but the laptop brightness was immutable until I discovered a post with the solution. Simply adding the following to the Device section in /etc/X11/xorg.conf lets KDE control the brightness correctly, and perfectly. Great!
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Option "RegistryDwords" "EnableBrightnessControl=1"
Option "UseEdidDpi" "false"
Option "DPI" "96 x 96"
EndSection

I also added the DPI option above to get 96×96 as some text was too large after switching to the NVIDIA driver. Fedora still suspends and resumes and everything is just perfect!

Set Your Desktop Free, With Nouveau’s 3D

Published on 18 February, 2010 in Fedora and FOSS. 0 Comments Tags: , , , , .

The nouveau project has done it! Finally, an open source 3D driver for NVIDIA video cards has arrived and will ship with Fedora 13. Let’s take a look (including a few benchmarks).

Fedora 12 and Compiz (Settings Manager)

Published on 23 December, 2009 in Fedora and FOSS. 1 Comment Tags: , , , , , .

Fedora uses the older method of enabling Compiz, via the gconf plugin.

The “Desktop Effects” program under System -> Preferences runs the /usr/bin/compiz-gtk script (part of the compiz-gnome package) to enable Compiz, or fall back to Metacity (GNOME’s window manager).

gconf backend
The compiz-gtk script executes the command:
compiz --ignore-desktop-hints glib gconf gnomecompat

On systems here (with NVIDIA cards at least), the gconf backend package was not installed. This means that even though NVIDIA and 3D is all working, Compiz won’t start. So, installing the required gconf backend package should make it all work.

su -c 'yum -y install compizconfig-backend-gconf'

Now try again.

ccp backend
Upstream however, Compiz has moved away from gconf and is using libcompizconfig (ccp) and the CompizConfig Settings Manager (ccsm) to handle settings.

Installing the ccsm package under Fedora and changing Compiz settings using the graphical manager (CompizConfig Settings Manager) results in none of those taking effect.

This is because the compiz-gtk script is not loading the ccp module. So the workaround is to install ccsm and then modify the script to replace gconf with ccp.

su -c "sed -i 's/gconf/ccp/' /usr/bin/compiz-gtk"

Now try again.

Keep in mind that updated versions of the compiz-gnome package may overwrite this file, so you’ll need to edit it again in future if this happens.

Fedora 12 and NVIDIA driver

Published on 10 December, 2009 in Fedora and FOSS. 0 Comments Tags: , , , .

Matt has a post over on his blog about how to get the NVIDIA driver working under Fedora 12. I currently use the Nouveau driver, but I’m sure it’ll come in handy in the future. Thanks Matt!

It wasn’t as straight forward as it _should_ have been, as apparently there is a bug in the current (at time of writing) version of Xorg, which causes X to run really slow.

I’m not convinced that it’s a bug in X.org, sounds like a problem caused by the NVIDIA driver. If only it were open source..

-c