I have an Dell Latitude E5420 which was sold pre-installed with Ubuntu,
and this bug affects it too.
So far it seems that the effective remedy is removing Apport:
$ sudo apt-get remove apport apport-gtk apport-symptoms python-apport
This solution is fine for me, since Apport anyways only wastes
I now also got the Fn+Arrow-buttons working by adding the kernel option
"acpi_backlight=vendor" if found while googling around.
Make change permament by editing row in /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
and then run "sudo update-grub"
--
You receive
I added now an external monitor to the laptop so that I could investigate what
state its is in when booted withouth "acpi=off". It
turns out that with ACPI enabled, the xrandr brightness range is 0-9:
$ xrandr --prop
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
LVDS1 conn
I noticed that running manually
xrandr --output LVDS1 --set BACKLIGHT 0
makes the screen brightness maximum.
If I boot without acpi=off and run the xrandr-command, nothing happends.
None of the Fn-key work either as acpi is on, so I guess the ACPI is
broken.
To make the screen as dim as possible,
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https://bugs.launchpad.net/bugs/910536
Title:
Screen too dark, no backlight, unusable X
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xor
Public bug reported:
I just did a fresh install of Precise on a Acer Aspire 5736Z with intel
GMA 4500. When I booted the installer from a USB, the screen is OK in
the boot menu (non-X) but as soon as X starts, the backlight of the
screen turns off making the screen almost black, and thus unusable.
Comment #16 fixes it on my Dell E5420.
The funny thing is, that normally the error message appears randomly, but when
I insert my Nokia CS-17 3G-modem, the error always appeared three times in a
row:
[ 3678.937434] usb 2-1.2: new high speed USB device using ehci_hcd and address 9
[ 3679.050002]
Correction to #20: switching the cursor in System > Settings >
Appearance didn't help after all. The cursor was just sometimes visible
by random.
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https://bugs.lau
I found a (rather old and slow) computer at a customer where the mouse
is invisible directly after boot. The machine is running the newest
kernel for Lucid at the moment (Linux ubuntu 2.6.32-27-generic
#49-Ubuntu SMP Wed Dec 1 23:52:12 UTC 2010 i686 GNU/Linux), so I guess
this bug is still
There is also a question about this at
https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+question/108987
Common to all bug reports I read is that:
- The symptom is that the mouse pointer is invisible, but the mouse still
works: you can hover on stuff and click.
- The problem
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug is no longer a duplicate of bug 63905
mouse cursor disappears
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You ca
This bug has lots of duplicates and I've seen it on several computers
lately.
--
Mouse cursor disappears after restarting screen (xrandr / resume)
https://bugs.launchpad.net/bugs/492782
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-vi
*** This bug is a duplicate of bug 492782 ***
https://bugs.launchpad.net/bugs/492782
** This bug has been marked a duplicate of bug 492782
Mouse cursor disappears after restarting screen (xrandr / resume)
* You can subscribe to bug 492782 by following this link:
https://bugs.launchpad.net
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