If you are planning to install or upgrade to the newly released Ubuntu 8.10, please go through this list of outstanding issues at the time of the release. Make sure your upgrade won’t hit one of the bugs listed and if it might, then make sure there is a workaround before you proceed.
Losing keyboard and mouse control when changing screen brightness with fn + arrow in laptops under intrepid
If you press Fn + Arrow keys to adjust brightness, most of mouse and keyboard keys stop working. Check bug 285323.
Hard disks potentially not shown when installing in Live CD mode
If a user browses a hard disk in Live CD mode before choosing to install, Ubiquity will not allow installation onto this disk because disks cannot be partitioned if they have busy (mounted) partitions. To use a mounted disk for installation, first unmount the drive before attempting to install.
Slow start to “Select and install software” step in text-mode installer
The “Select and install software” step in the text-mode install CD may appear to hang at a low single-digit percentage. This is particularly the case for netboot installations, where there will be no progress bar updates at all while downloading packages. This is due to a fault in the interaction between the installer and apt-get, which was diagnosed too late to fix for Ubuntu 8.10: bug 290234.
MID image requires a network for successful installation
When trying to install the Ubuntu MID (Mobile Internet Device) image without a network, the installer displays a pop-up dialog in a loop near the end of the installation while scanning the archive. The only way to break this loop is to connect to a network (bug 288320).
Recommended packages installed by default
In accordance with the Debian Policy Manual, the package management system now installs packages listed in the Recommends: field of other installed packages as well as Depends: by default. If you want to avoid this for specific packages, use apt-get –no-install-recommends; if you want to make this permanent, set APT::Install-Recommends ”false”; in /etc/apt/apt.conf. Be aware that this may result in missing features in
some programs.
Password limitation with ecryptfs
Users of the alternate/server installation who choose a password containing a “%” or a “-” will end up with an encrypted ~/Private directory that will not mount on reboot and subsequent logins. To fix this, affected users will need to do the following in the newly installed system:
1. Update ecryptfs-utils to at least version 53-1ubuntu12 (as soon as it becomes available as a package update)
2.Run: $ ecryptfs-setup-private –force
For more information on the bug and solution approach see bug #290445.
nVidia “legacy” video support
The 71 and 96 series of proprietary nVidia drivers, as provided by the nvidia-glx-legacy and nvidia-glx packages in Ubuntu 8.04 LTS, are not compatible with the X.Org included in Ubuntu 8.10. Users with the nVidia TNT, TNT2, TNT Ultra, GeForce, GeForce2, GeForce3, and GeForce4 chipsets are affected and will be transitioned on upgrade to the free nv driver instead. This driver does not support 3D acceleration.
Users of other nVidia chipsets that are supported by the 173 or 177 driver series will be transitioned to the nvidia-glx-173 or nvidia-glx-177 package instead. However, unlike drivers 96 and 71, drivers 173 and 177 are only compatible with CPUs that support SSE (e.g. Intel Pentium III, AMD Athlon XP or higher). Systems with older CPUs will also be transitioned to the nv driver on upgrade.
ATI “fglrx” video support
The ATI video driver in 8.10 drops support for video cards with r300 based chips (the Radeon 9500 – X600 Series of cards). If you have such a card, please use “Hardware Drivers” at System/Administration to disable it before the upgrade. Please see bug 284408 for more information
X.Org Input Devices
The X.Org configuration file (/etc/X11/xorg.conf) still has InputDevice entries for the mouse and keyboard, but they are ignored now because input-hotplug is used. The keyboard settings now come from /etc/default/console-setup; to change them please use sudo dpkg-reconfigure console-setup. After that, HAL and X need to be restarted .
Toshiba laptop hotkey support
The tlsup kernel driver included in Linux 2.6.27 for support for Toshiba laptops is not compatible with the X.Org 1.5 event model, as a result of which hotkeys on these laptops are not usable with Ubuntu 8.10. This will be addressed in a post-release kernel update to reintroduce the toshiba_acpi driver.
Boot failures on systems with Intel D945 motherboards
Users have reported slower than normal detection of SATA hard drives on systems with Intel D945 motherboards in Ubuntu 8.10. This may cause the system to drop to a busybox initramfs shell on boot with a “Gave up waiting for root device.” error. Wait a minute or two and then exit the initramfs shell by typing ‘exit’. Booting should proceed normally. If it doesn’t, wait a bit longer and try again. Once the system boots, edit /boot/grub/menu.lst and add rootdelay=90 to the kernel stanza for your current kernel. (Bug 290153).
System lock-ups with Intel 4965 wireless
The version of the iwlagn wireless driver for Intel 4965 wireless chipsets included in Linux kernel version 2.6.27 causes kernel panics when used with 802.11n or 802.11g networks. Users affected by this issue can install the linux-backports-modules-intrepid package, to install a newer version of this driver that corrects the bug. (Because the known fix requires a new version of the driver, it is not expected to be possible to include this fix in the main kernel package.)
Cannot reactivate Intel 3945/4965 wireless if booting with killswitch enabled
On laptops with Intel 3945 or Intel 4965 wireless chipsets and a killswitch for the wireless antenna, starting the system with the killswitch enabled (i.e., with wireless disabled) will prevent re-enabling the wireless by toggling the killswitch. As a workaround, users should boot the system with the killswitch disabled. A future kernel update is expected to address this issue.
Atheros ath5k wireless driver not enabled by default
The version of the ath5k driver for Atheros wireless devices included in Linux 2.6.27 interferes with the use of the madwifi driver for some wireless devices and as a result has been disabled by default. Many Atheros chipsets will work correctly with the madwifi driver, but some newer chipsets may not, and the madwifi driver may not work with WPA authentication. If you have an Atheros device that does not work with madwifi, you will want to install the linux-backports-modules-intrepid-generic package, which includes an updated version of the ath5k driver. While not installed by default, this linux-backports-modules-intrepid-generic package is included on the Ubuntu 8.10 CD and DVD images for ease of installation.
iSCSI boot order
File systems hosted on iSCSI targets may not be mounted automatically at boot time, even if they have an entry in /etc/fstab, if a bridged or bonded Ethernet interface is required to reach the iSCSI target. As a work-around, you would have to restart the open-iscsi service and manually mount the file system in question after system boot, once the required network interface have been brought up. Systems equipped with a plain Ethernet interface are not affected. See bug 227848.
Cannot mount more than one iSCSI target
Mounting multiple iSCSI targets at the same time is currently not supported. Systems configured to use more than one iSCSI targets should not be upgraded to Ubuntu 8.10.
For more information on the bug and solution approach see bug 289470.
Wireless doesn’t work after suspend with ath_pci driver
Wireless devices that use the ath_pci kernel driver, such as the Atheros AR5212 wireless card, will be unable to connect to the network after using suspend and resume. To work around this issue, users can create a file /etc/pm/config.d/madwifi containing the single line:
SUSPEND_MODULES=ath_pci
This will cause the module to be unloaded before suspend and reloaded on resume.
Kubuntu Bluetooth support
Bluetooth is not supported in Kubuntu 8.10 because KDE does not yet support the bluez 4.x stack required for compatibility with the kernel used in 8.10. A fix for this is being evaluated as a post-release update. (Bug 280997)
KNetworkManager cannot manage connections with static IPs
KNetworkManager in Kubuntu 8.10 sometimes fails with network connections that require static IP address configuration (bug 280762). Connections which use DHCP for IP address configuration are not affected by this problem.
Only US wireless channels enabled by default on Intel 3945
The iwl3945 wireless driver defaults to the US regulatory domain for wireless, so wireless networks on channels forbidden by US regulations but permitted by European or Japanese regulations will not work out of the box. This affects IEEE 802.11b/g channels 12 (Europe and Japan), 13 (Europe and Japan), and 14 (Japan only), as well as all 802.11a channels. (Some other wireless drivers may be affected; this is the only one we are sure of so far.)
To work around this, add the following line to the /etc/modprobe.d/options file if you use this driver and need to use European wireless channels:
options cfg80211 ieee80211_regdom=EU
Alternatively, add the following line if you use this driver and need to use Japanese wireless channels:
options cfg80211 ieee80211_regdom=JP
CD eject problems
After ejecting a CD tray containing a disc, the tray will be immediately retracted, making it difficult to remove the disc (bug 283316). This can be worked around by pressing the eject button again before the disc is fully mounted, after which it will stay open. We expect to fix this in a post-release update.
Hangs with desktop effects on Intel 830MG and 845G video cards
There is a bug in the Intel video driver for the older intel 830 and 845 integrated video cards that are used on laptops like the IBM R30. Desktop effects with compiz will not work on those chips and will freeze the system. For new installations, please install using the safe graphics mode (press F4 in the startup screen) on these systems and disable desktop effects via System -> Preferences -> Appearance, clicking on “Visual effects” and choosing “None”.
I haven’t listed all the bugs. For more information, please check Ubuntu release note.
Source: Ubuntu.
Ubuntu 8.10, outstanding issues, NVidia, ATI, FGLRX, ecryptfs, XOrg, Intel, Atheros, iSCSI, Kubuntu, KNetworkManager
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