[Bug 492782] Re: Mouse cursor disappears after restarting screen (xrandr / resume)
Otto Kekäläinen
lately.
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Mouse cursor disappears after restarting screen (xrandr / resume)
https://bugs.launchpad.net/bugs/492782
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Otto Kekäläinen [via Archive Software & Mailing List Agustinus Rustantio]
lately.
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Mouse cursor disappears after restarting screen (xrandr / resume)
https://bugs.launchpad.net/bugs/492782
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Mouse cursor disappears after restarting screen (xrandr / resume)
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Ubuntu QA Website-138 [via Archive Software & Mailing List Agustinus Rustantio]
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Mouse cursor disappears after restarting screen (xrandr / resume)
https://bugs.launchpad.net/bugs/492782
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Otto Kekäläinen
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 appears after the X mode changes (eg. while returning from blank screen, returning from suspend, changing resolutions, other fiddling with xrandr, sometimes even directly from boot).
- In some reports there are step-by-step how to reproduce while in some the cursor disappears randomly. At least is is sure that for average bug reporters it is hard to spot the pattern why/when the mouse pointer disappears.
- There are several workarounds that makes the X mode reload and thus brings the mouse back:
-- switching back and fourth to a console (Ctrl+Alt+F1, Ctrl+Alt+F7)
-- opening Gnome terminal and writing something (some other apps too, but writing in any app won't work)
- It seems that this bug is expressed on both Intel, ATI and Nvidia cards.
- The desktop environment seems always to be Gnome. Bug #457046 might be related - there the cursor disappears because of a race condition in Gnome which makes the cursor drawn under the window.
- Different Ubuntu releases and kernel versions are affected, however in some bug reports upgrading to a new release/kernel made the problem go away. The patch in bug #614176 comment #22 seems interesting.
- Bug #595282 hints it might be a problem in how X detects the display or some interaction between xorg-server and kernel that messes the mouse pointer.
- According to bug #475917 removing the file ~/.config/monitors.xml prevents expression of the bug.
Disclaimer: kernel drivers, Xorg, xrandr, Gnome display management etc is not my expertise, so I don't know where the problem actually is. I however hope this investigation helps somebody and decreases the number of new bugs of the same issue.
If it turns out that this is now fixed in newer kernels, please backport
the fix to 10.04 LTS to increase it's stability.
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Mouse cursor disappears after restarting screen (xrandr / resume)
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Otto Kekäläinen [via Archive Software & Mailing List Agustinus Rustantio]
Matt Smith
I just did a fresh install of Kubuntu 10.10 and I'm seeing this issue
now. This did not occur, for me, on Kubuntu 10.04, using drivers
downloaded from nVidia.
I'm running a dual-display setup. The problem only occurs on my left
screen (screen 1). The right display is fine. That is, the mouse will
show on the right screen, but disappears when I move across to the left.
Opening a terminal and performing the steps previously mentioned does
not fix the problem. I haven't tried console switching, yet.
Some info:
Linux hostname 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:26:05 UTC 2010 x86_64 GNU/Linux
02:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9500 GT] (rev a1)
A number of xorg packages were installed, by default. I can post them
(or other logs) if anyone thinks it's of interest -- otherwise, it's
purely a stock Kubuntu 10.10 install.
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Mouse cursor disappears after restarting screen (xrandr / resume)
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Shaved Wookie
at all, so I don't think it's gnome specific. Admittedly I didn't get it
for months and then just got it once a few weeks back. If it's not the
desktop environment, and it's not the video driver / hardware, then that
suggests to me that it's probably something X / Kernel related.
Shaved Wookie
Shaved Wookie
drink
with Maverick and Ubuntu on fresh install with nVidia drivers via repo.
Am not running unclutter (seeing some related bugs?) and more
interestingly was not having this problem on migrated install upgraded
through each step approximately since edgy or maybe feisty.
drink
repeated entries)
Otto Kekäläinen
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 unsolved.
Switching to console and back makes the cursor visible again, as in
the other cases too.
As a workaround I noticed that switching the cursor in System >
Settings > Appearance to something else than the default fixes it and
the mouse cursor is always visible.
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https://bugs.launchpad.net/bugs/492782
Title:
Mouse cursor disappears after restarting screen (xrandr / resume)
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Fabio Marconi
Bryce Harrington
indicate natty has been tested for this bug. If it has, please
elaborate test findings and attach Xorg.0.log and any other relevant
evidence.]
** Tags removed: natty
Otto Kekäläinen
Appearance didn't help after all. The cursor was just sometimes visible
by random.
gene
with the nouveau driver. Any fixes yet?
Stephen Birch
by my kids, they can't understand why closing and opening the lid makes
the cursor permanently disappear. The workarounds are amateurish to
them. I get to listen to "Windows didn't do this" every time it
happens.
DBooth
on resume from suspend/hibernate (via
System->Preferences->ScreenSaver->Lock_screen_when_screen_saver_is_active