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Message #31845
[Bug 1234818] Re: Regression: DisplayLink DL-195 fails with EAGAIN after upgrade from 3.11.0-031100 to 3.11.0-11
Nikolaus Rath, could you please confirm this issue exists with the
latest development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
could you please run the following command in the development release
from a Terminal (Applications->Accessories->Terminal), as it will
automatically gather and attach updated debug information to this
report:
apport-collect -p linux <replace-with-bug-number>
Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER
where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc1
This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER
As well, please remove the tag:
needs-upstream-testing
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1234818
Title:
Regression: DisplayLink DL-195 fails with EAGAIN after upgrade from
3.11.0-031100 to 3.11.0-11
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
My Plugable UGA-2K-A USB 2.0 to DVI adapter (using chipset DisplayLink
DL-195, USB ID 17e9:4302) works fine with 3.11.0-031100-generic.
However, when upgrading to 3.11.0-11-generic, X11 fails to open the
DRI device with
[ 8.868] (EE) open /dev/dri/card1: Resource temporarily
unavailable
Reverting to 3.11.0-031100-generic fixes the problem. Upgrading to
current mainline (3.12.0-999.201310030405) also fixes the problem (but
causes lots of kernel BUG messages).
In both cases, the kernel correctly creates the /dev/fb1 and
/dev/dri/card1 devices. There are no error messages in the kernel log.
I can bisect this if someone tells me where to find the intermediate
versions.
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References