This page documents common bugs in Fedora 12 and, if available, fixes or workarounds for these problems. If you find your problem in this page, do not file a bug for it, unless otherwise instructed. Where appropriate, a reference to the current bug(s) in Bugzilla is included.
Release Notes
Read the Fedora 12 release notes for specific information about intentional changes in Fedora 12, and other general information.
My bug is not listed
Not every bug is listed in this page, but Bugzilla should be a comprehensive database of known bugs. This page is a sampling of the bugs most commonly discussed on our mailing lists and forums.
To see if your bug has already been reported, you can search Bugzilla. If it has not yet been reported, we encourage you to do so to help improve Fedora for yourself and others. A guide to Bugs and feature requests has been prepared to assist you.
If you believe an already-reported bug report should be added to this page because it is commonly encountered, you can:
- Add it yourself, if you have wiki access. Remember to try and follow the style and guidelines explained in the comments in the page source.
- Add the CommonBugs keyword to the bug report, and contact the Fedora QA team with the Bugzilla report number explaining why you believe that particular report qualifies as a common issue. You can contact Fedora QA through any of the methods listed here.
Issues when upgrading from previous releases
As usual, the supported methods for upgrading from previous Fedora releases are to do an 'upgrade install' from the regular installation media, or to use preupgrade (see How_to_use_PreUpgrade). Upgrading by using yum directly is not supported, but may in practice work. For known issues when upgrading via yum, see the page on this upgrade method. For additional guidance on supported upgrade methods, see section 17.2. Upgrading Your System in the installation guide.
Preupgrade free space check on /boot not thorough
link to this item - Bugzilla: #530541
Preupgrade is intended to provide a hassle-free method for upgrading a system to the current release of Fedora. Testing identified that users of Fedora 11 (and earlier) who installed their systems using the recommended /boot
partition size of 200MB may not be able to upgrade their systems using preupgrade. The /boot
filesystem is used to store the kernel and initial ramdisk images that form the core of the Fedora operating system. required by several utilities including grub
, kernel
and preupgrade
.
The preupgrade
utility was not properly detecting the amount of available space on the /boot
filesystem prior to beginning the system update process. As a result, preupgrade
would successfully complete pre-upgrade operations, and reboot the system into the installer to continue with the upgrade. After reboot, the installer would then fail indicating that insufficient disk space was available to perform the update. A screenshot of the failure message is available.
A preupgrade update is available that will properly detect the amount of disk space available in /boot
. Users are advised to update to the following
package for their release.
preupgrade
- Fedora 12 - https://admin.fedoraproject.org/updates/F12/FEDORA-2009-11536
- Fedora 11 - https://admin.fedoraproject.org/updates/F11/FEDORA-2009-11547
- Fedora 10 - https://admin.fedoraproject.org/updates/F10/FEDORA-2009-11530
After installing the updated preupgrade package, if you are still unable to proceed with an update, please refer to these additional tips to free up space in /boot.
Upgrade on PPC architecture does not offer boot loader configuration screen
link to this item - Bugzilla: #536705
When manually upgrading a PPC Fedora system using Fedora 12 installation media, the installer will not offer a choice to modify your boot loader configuration. Instead, the installer will default to Update boot loader configuration and proceed with the upgrade. No workaround has yet been identified for this issue.
Installation issues
/boot must be a minimum of 300 MB
link to this item - Bugzilla: #510970
If you use a separate /boot
partition, it is highly recommended that it be at least 300MB in size.
Windows recovery partition available as boot option instead of Windows partition
link to this item - Bugzilla: #534066
When installing Fedora alongside Windows on a system whose manufacturer provides a special 'recovery partition' to allow the re-installation of a clean copy of Windows, the Fedora installer may incorrectly configure the system boot to the recovery partition - rather than the main Windows partition - when the Other boot menu choice is selected. To resolve this issue, edit the file /boot/grub/menu.lst
- you will need root privileges to edit this file - and adjust the Other entry accordingly. In most cases, the recovery partition will be the first partition on the first hard disk, and the real Windows partition the second partition on the first hard disk. In this case, the incorrect entry will look like this:
title Other rootnoverify (hd0,0) chainloader +1
It should be corrected to look like this:
title Other rootnoverify (hd0,1) chainloader +1
If you are not sure about your partition layout, the output of the command fdisk -l
can help. The restore partition and the real Windows partition should be shown with different types. The output of this command uses /dev/sda to denote the first hard disk, /dev/sdb the second, and so on; and appends the partition numbers starting at 1, rather than 0. So /dev/sda1 in the fdisk output is equivalent to (hd0,0) in grub's format, while /dev/sda2 would be equivalent to (hd0,1) and /dev/sdc5 would be equivalent to (hd2,4).
Boot fails if system partition is on NFS or iSCSI on PPC architecture when installing from DVD or 6-CD media sets
link to this item - Bugzilla: #533392
The
package was mistakenly omitted from the DVD and 6-CD media sets for the PowerPC architecture. This causes boot to fail on the installed system if a crucial system partition (root or /usr for example) is accessed via NFS or iSCSI. To avoid this issue, either enable the supplementary internet repositories when doing such an installation from the DVD or 6-CD media set on the PPC architecture, or do a network install from a full tree (or at least a tree in which the dracut-network
package is available).
dracut-network
Miscellaneous problems with Intel graphics adapters
If you are suffering from problems with an Intel graphics adapter such as failure of X to start at all, hangs or freezes or crashes in the graphical environment, display corruption, failure of 3D accelerated applications to work properly or similar problems, and your issue is not specifically covered elsewhere on this page, the following general advice may be of use.
Several such issues may be worked around by disabling kernel mode setting. To do this, add
nomodeset
as a kernel parameter. If this solves your problem, please check whether a bug has already been reported for it, and if not, file a new bug report on the xorg-x11-drv-intel component, explaining your symptoms, and providing all the usual information required for X.org bug reports. In future kernel mode setting will be the only available method, and so we wish to ensure all problems caused by kernel mode setting are fixed.
If this does not resolve your issue, one other potential workaround is to change to a different acceleration method. To do this, add a line:
Option "AccelMethod" "EXA"
or:
Option "AccelMethod" "XAA"
to the Device section of /etc/X11/xorg.conf
. If that file does not exist, see How_to_create_xorg.conf for instructions on how to create it. Again, if doing this works around the problem you are experiencing, please check whether a bug report on the problem has already been filed, and if not, please file a new bug report on the xorg-x11-drv-intel component, explaining your symptoms, and providing all the usual information required for X.org bug reports. These legacy acceleration methods will be removed in future, so any bugs in the new acceleration method (UXA) need to be fixed.
Miscellaneous problems with ATI / AMD graphics adapters
link to this item - Bugzilla: #498457
If you are experiencing failure to start the graphical desktop, hanging or freezing, corruption, or slow performance with an ATI / AMD graphics adapter, you may try the following.
Some issues may be worked around by disabling kernel mode setting. To do this, add
nomodeset
as a kernel parameter. If this solves your problem, please check whether a bug has already been reported for it, and if not, file a new bug report on the xorg-x11-drv-ati component, explaining your symptoms, and providing all the usual information required for X.org bug reports. In future kernel mode setting will be the only available method, and so we wish to ensure all problems caused by kernel mode setting are fixed.
If this does not resolve your issue, one other potential workaround is to change to a different acceleration method. To do this, add a line:
Option "AccelMethod" "XAA"
to the Device section of /etc/X11/xorg.conf
. If that file does not exist, see How_to_create_xorg.conf for instructions on how to create it. Again, if doing this works around the problem you are experiencing, please check whether a bug report on the problem has already been filed, and if not, please file a new bug report on the xorg-x11-drv-ati component, explaining your symptoms, and providing all the usual information required for X.org bug reports. These legacy acceleration methods will be removed in future, so any bugs in the new acceleration method (EXA) need to be fixed.
If this does not resolve your issue, there is another configuration option to try. Add a line:
Option "AccelDFS" "off"
to the Device section of /etc/X11/xorg.conf
. If that file does not exist, see How_to_create_xorg.conf for instructions on how to create it. Again, if doing this works around the problem you are experiencing, please check whether a bug report on the problem has already been filed, and if not, please file a new bug report on the xorg-x11-drv-ati component, explaining your symptoms, and providing all the usual information required for X.org bug reports.
Finally, if this still does not resolve your issue, try adding this line:
Option "DRI" "off"
to the Device section of /etc/X11/xorg.conf
. Again, if doing this works around the problem you are experiencing, please check whether a bug report on the problem has already been filed, and if not, please file a new bug report on the xorg-x11-drv-ati component, explaining your symptoms, and providing all the usual information required for X.org bug reports.
Display cannot be reactivated if it enters sleep mode with laptop lid closed
link to this item - Bugzilla: #489907 - X.org bug #21230
Due to a known bug, on some laptops with Intel video adapters, if the display goes into sleep mode with the laptop lid closed, it will not be reactivated when the laptop lid is opened. The display will stay blank unless you reboot or use the following workaround. To workaround this problem, create a file with the following contents:
#!/bin/bash xrandr --output LVDS1 --off xrandr --output LVDS1 --auto
and save it as ~/screenfix.sh
. Make it executable, and assign it to a keyboard shortcut (the method for doing this depends on your desktop environment). Executing this script via the keyboard shortcut should bring the display back to life. Note that the output parameter may vary; you can see the appropriate value for your system by running xrandr
at a console and examining the output. A fix for this issue has been committed to the upstream kernel and may be made available in a future Fedora 12 kernel update.
Software issues
Encrypted disks can't be unencrypted for non-graphical boot
link to this item - Bugzilla: #530896
Due to an unidentified bug early in the boot cycle, some users are unable to access encrypted disks or partitions at boot up when using a non-graphical boot splash. This issue can be worked around by booting with:
rhgb vga=0x318
on the kernel command line (specified at grub time).
If you are installing Fedora 12 and intend to use encrypted partitions, or are upgrading a system with encrypted partitions to Fedora 12 from an earlier release, it is recommended that you use the traditional installer - not a live image - to install, and make sure to enable the Fedora 12 - Updates repository during installation. This will ensure you are not affected by this issue.
An updated plymouth package has been released to address this issue. Update your system as usual to receive this update, if you do not yet already have it. You may need to rebuild your initial ramdisk after applying the update on an installed Fedora 12 system by running the following command: /usr/libexec/plymouth/plymouth-update-initrd
as root. Make sure that you are booted into the latest installed kernel before rebuilding the initial ramdisk.
Missing printer drivers
link to this item - Bugzilla: #536831
The
package is not installed by default in a standard Fedora 12 installation. If you have a PostScript printer, or your printer requires an older driver such as one of the ghostscript built-in drivers, you may need to install this package before a driver for your printer will be available from the Fedora printer configuration tool. To install it, select System->Administration->Add/Remove Software from the main menu and search for "foomatic", or run this command from the command line as root: foomatic
yum install foomatic
.
CD tray problems or slow boot after installation from live CD
link to this item - Bugzilla: #527781
When installing from a live CD, the anaconda package is installed on the system. It includes some custom udev rules in the file /lib/udev/rules.d/70-anaconda.rules
. These rules have been reported to cause various problems, ranging from CD trays closing again right after ejecting a CD or boot hanging in udev for a long time.
If your system shows these symptoms, you can simply remove the
package. It is not needed once you have completed installation of the system.
anaconda
Intel BIOS RAID arrays created after installation not detected
link to this item - Bugzilla: #537329
Due to incomplete handling in the initialization scripts, Fedora 12 will not correctly recognize Intel BIOS-managed RAID sets created after Fedora has been installed. This type of RAID set will, however, be correctly handled if it exists at install time. This issue can be worked around by adding the parameter iswnomd to the kernel command line, which can be achieved by editing /boot/grub/menu.lst
. You may also wish to consider creating the array as a Linux software RAID array rather than a BIOS-managed array; this will make it portable between different Linux systems, and avoid this issue.
An update may be made available to address this issue, however it is not a straightforward issue to fix so this may not be possible or may take some time.
Problems when using the proprietary NVIDIA graphics driver (especially with KDE)
link to this item - Bugzilla: #533620
We encourage Fedora users to use the free nouveau driver, rather than the proprietary nvidia driver, whenever possible.
Due to a bad interaction between the proprietary NVIDIA driver and a fix in Fedora 12's X.org server package for an unrelated problem, current versions of the said driver have several problems in Fedora 12. In particular, they render KDE almost unusable, as discussed in the bug report cited above. Fedora does not provide or support these proprietary drivers and cannot fix this issue. However, users who wish to use the proprietary driver with Fedora 12 can find an unsupported alternative build of the X.org server packages in a comment on the bug report, which several users have reported to work around this issue.
Adobe Reader fails to run
We encourage Fedora users to use a free alternative to Adobe reader, such as Evince, whenever possible.
The latest release of Adobe Reader (AdobeReader_enu-9.2-1.i486) works in Fedora 12. Previous releases of Adobe Reader do not run by default on Fedora 12. To work around this problem, launch Adobe Reader with the following command: GDK_NATIVE_WINDOWS=1 acroread
.
Non-Fedora Mozilla/Firefox binaries may crash
There is a conflict between binary software downloaded from Mozilla and software included in Fedora which may lead to a crash, often seen when using Flash. See this page for details and workarounds.