*** This bug is a duplicate of bug 629910 ***
https://bugs.launchpad.net/bugs/629910
This is true in Ubuntu 10.10 and with ATI. Switching to Anything other
than SubPixel Rendering fixed the problem
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which is
btw it happens with the latest 256.53 drivers
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers-180 in ubuntu.
I can confirm this one too, but I can't confirm the X server high CPU
usage. But, I do experience the way slow scrolling in f.e. a terminal or
Gedit or Geany.
Fully updated Maverick, AMD64, even tried the latest nVidia beta driver
(260.19.04) for my GT 240 but no luck.
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Slow performance and
Hmm, I have to correct myself. After some investigation I also
experience the high CPU usage of X while scrolling through some stuff. I
have opened a 200 line text file in Geany, and when I scroll through it
X peaks at 60% CPU usage (Core i5 760).
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Slow performance and high CPU usage on
I did a bit of digging and found this thread on Nvidia's forums:
http://www.nvnews.net/vbulletin/showthread.php?s=6d2356bfbad61b24cdc14c1417a2cb0ft=154563
One poster In particular ran gtkperf which was showing extremely slow
performance in font related tests. The poster later claims that It
This bug MAY be a duplicate of 629910
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/629910
This reporter of 629910 states the following:
Switching font rendering from 'Subpixel Smoothing (LCD)' to any other
setting in 'Preferences - Appearance' makes the problem go away.
Interestingly enough, it does.
With subpixel smoothing:
GtkEntry - time: 0.06
GtkComboBox - time: 1.28
GtkComboBoxEntry - time: 0.83
GtkSpinButton - time: 0.15
GtkProgressBar - time: 0.29
GtkToggleButton - time: 0.28
GtkCheckButton - time: 0.10
GtkRadioButton - time: 0.23
GtkTextView -
Can confirm the turning off subpixel smoothing fix here as well, though
the fonts don't look as good :)
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
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*** This bug is a duplicate of bug 629910 ***
https://bugs.launchpad.net/bugs/629910
I'm marking this as a duplicate of #629910. We have been able to prove
that the fix suggested in the opening of #629910 does indeed fix this
problem. I'm choosing to close this bug over #629910 because
I can confirm this for GTX 285 + maverick beta + binary nvidia driver.
Even launching htop causes the Xorg cpu-usage to peak to ~30% on an i7-920. I
also noticed some much more serious spikes beyond 100%, which render the system
almost unusable (mouse lags, audio playback hangs, etc.). These
Confirmed on a gtx 260. Moving around windows is also jerky and
everything feels slow and sluggish making compiz effects look terrible.
I think i should have waited with the upgrade :(
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
You received this bug
Oh and just noticed when clicking on Places and hovering with your mouse
over them up and down makes Xorg use up to 55% CPU. A serious
showstopper bug.
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
You received this bug notification because you are a
I'm seeing this, again on nvidia using both open source and restricted
driver. I get 100% CPU all the time if doing anything.
This was not a problem until around alpha 3.
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
You received this bug notification
Should this be set to nvidia-graphics-drivers (sans -180)? It seems to
be affecting a lot more than those on the 180 drivers from comments 4,
5, and my own GTS 250. There are times when I feel like I'm in a slow
SSH session while trying to use gedit.
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Slow performance and high CPU usage on
I have this exact problem. The poor responsiveness It is even noticeable
when I'm writing/editing/reading code in Gedit or Geany.
I have an NVidia GeForce GTX 260.
** Changed in: nvidia-graphics-drivers-180 (Ubuntu)
Status: New = Confirmed
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Slow performance and high CPU usage on
Upgraded to Maverick today. The difference in responsiveness is
startling. I'm also using an NVIDIA card and seeing X CPU spiking. I'm
running a GeForce GTX 280
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
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Same here: No compiz, but nvidia. I encountered the problem while
scrolling past long logs.
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
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which is subscribed to
** Package changed: xorg (Ubuntu) = nvidia-graphics-drivers-180
(Ubuntu)
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers-180 in
Why nVidia?
As far as I remember (I'll have to retest) the problem does not go away when I
downgraded.
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Slow performance and high CPU usage on Maverick
https://bugs.launchpad.net/bugs/617994
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** Attachment added: .proc.driver.nvidia.cards.0.txt
https://bugs.launchpad.net/bugs/617994/+attachment/1490651/+files/.proc.driver.nvidia.cards.0.txt
** Attachment added: .proc.driver.nvidia.registry.txt
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