** Changed in: mesa (Ubuntu Precise)
Milestone: None => ubuntu-12.04.1
** Changed in: xserver-xorg-video-intel (Ubuntu Precise)
Milestone: None => ubuntu-12.04.1
** Description changed:
[IMPACT]
renders IVB GT1 systems basically inoperable, with massive distortion on
screen
also affects systems on the certification queue
[TESTCASE]
boot 12.04 on a IVB GT1 (HD2500) system
[Regression Potential]
None, the changes are oneliners to reduce the max thread count on IVB
GT1, which matches the current (internal?) intel specs
+
+ [NOTE]
+
+ The mesa update is added on top of a current SRU in -proposed, which is
+ already tested elsewhere. This commit should not risk that SRU, or vise
+ versa (mesa got an exception from the TB)
--
I have a Intel 3570 CPU (Ivy Bridge) with built in 2500 graphics [1].
There is a lot of artifacts on screen, both in lightdm and in unity. There
more or less impossibly to read any text on screen.
I have tested quantal and the packages from ppa:xorg-edgers/ppa without any
improvement. I had high hopes what xf86-video-intel 2.20.2 was the solution
because it contains ivy bridge fixes, but still no result. [2]
Note (link 2):
"For the last 9 months, since 2.16.901, we have been shipping a driver that
does not work on IvyBridge GT1 systems (HD2500 graphics); we were telling
the GPU to use an invalid number of threads for the pixel shader and this
in turned caused the GPU to hang."
With a plain install of precise I only see artifacts, but X hangs (hard)
when I'm using quantal or the packages from ppa:xorg-edgers/ppa
My current ugly workaround is to remove the intel driver and let X fall
back to something else, not a perfect solution but the system is usable.
[1]
http://ark.intel.com/products/65702/Intel-Core-i5-3570-Processor-%286M-Cache-3_40-GHz%29
[2] http://lists.freedesktop.org/archives/xorg/2012-July/054947.html
Currently the system is running 12.04 with ppa ppa:xorg-edgers/ppa.
I have xserver-xorg-video-intel
2:2.20.2+git20120731.fd3a1236-0ubuntu0sarvatt~precise installed, the system
hangs hard after I log in, or sometimes the GPU hangs and the screen goes to
power save.
The system is not in use and I'm free to install and test whatever
version and/or packages you want me to install.
** Description changed:
[IMPACT]
renders IVB GT1 systems basically inoperable, with massive distortion on
screen
also affects systems on the certification queue
[TESTCASE]
boot 12.04 on a IVB GT1 (HD2500) system
[Regression Potential]
None, the changes are oneliners to reduce the max thread count on IVB
GT1, which matches the current (internal?) intel specs
[NOTE]
The mesa update is added on top of a current SRU in -proposed, which is
- already tested elsewhere. This commit should not risk that SRU, or vise
- versa (mesa got an exception from the TB)
+ already being tested elsewhere. This commit should not risk that SRU, or
+ vise versa (mesa got an exception from the TB)
--
I have a Intel 3570 CPU (Ivy Bridge) with built in 2500 graphics [1].
There is a lot of artifacts on screen, both in lightdm and in unity. There
more or less impossibly to read any text on screen.
I have tested quantal and the packages from ppa:xorg-edgers/ppa without any
improvement. I had high hopes what xf86-video-intel 2.20.2 was the solution
because it contains ivy bridge fixes, but still no result. [2]
Note (link 2):
"For the last 9 months, since 2.16.901, we have been shipping a driver that
does not work on IvyBridge GT1 systems (HD2500 graphics); we were telling
the GPU to use an invalid number of threads for the pixel shader and this
in turned caused the GPU to hang."
With a plain install of precise I only see artifacts, but X hangs (hard)
when I'm using quantal or the packages from ppa:xorg-edgers/ppa
My current ugly workaround is to remove the intel driver and let X fall
back to something else, not a perfect solution but the system is usable.
[1]
http://ark.intel.com/products/65702/Intel-Core-i5-3570-Processor-%286M-Cache-3_40-GHz%29
[2] http://lists.freedesktop.org/archives/xorg/2012-July/054947.html
Currently the system is running 12.04 with ppa ppa:xorg-edgers/ppa.
I have xserver-xorg-video-intel
2:2.20.2+git20120731.fd3a1236-0ubuntu0sarvatt~precise installed, the system
hangs hard after I log in, or sometimes the GPU hangs and the screen goes to
power save.
The system is not in use and I'm free to install and test whatever
version and/or packages you want me to install.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1031784
Title:
Artifacts on screen with ivy bridge
To manage notifications about this bug go to:
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1031784/+subscriptions
--
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