** Changed in: disper
Status: Fix Committed = Fix Released
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https://bugs.launchpad.net/bugs/908856
Title:
Error: Unpack requires a string argument of length 4
To manage
I've since updated from F16 to F18 (and all the kernel/driver updates
that entails) on the same hardware, and it appears the problem no longer
occurs for me. I verified it works with or without the workaround in
place.
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Thanks, Mike, for checking!
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https://bugs.launchpad.net/bugs/908856
Title:
Error: Unpack requires a string argument of length 4
To manage notifications about this bug go to:
Is this still an issue? Could you please verify that it is an issue with
0.3.0, and if the current disper bzr trunk solves it? I've committed the
workaround as mentioned in comment #14.
** Changed in: disper
Status: Triaged = Fix Committed
** Changed in: disper
Assignee: (unassigned)
I used the python fix from Mike Cook in comment #14. It works fine now.
I'm wondering if it's related to some python updates that I've received
within the last couple of weeks. I'm on Linux Mint 13 KDE which is
based on Ubuntu 12.04 (if I remember correctly).
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I've got the same problem, and I'm willing to try the workaround in #14.
Okay, stupid question: I've made the changes in the minx.py. What do I
do next? How do I compile it?
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Thanks, Mike, for getting to the cause of the problem! This might be a
bug in X (especially if a protocol detail differs between i386 and
x86_64), but at least we can workaround it. I'll look into this in more
detail later.
** Changed in: disper
Importance: Undecided = High
** Changed in:
just another me 2...
Inspiron E6400
Nvidia Quadro NVS 160M
Driver Version 295.40
After rebooting switching profiles works fine - however auto-disper
seems to be always get broken (showing the stated error message) after
the system resumes from standby.
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Just a me-too on this
- NVIDIA Corporation GT218 [NVS 3100M]
- Thinkpad T510
- Driver 295.40
- Ubuntu 12.04 64-bit
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https://bugs.launchpad.net/bugs/908856
Title:
Error: Unpack
Had the same problem on my Dell laptop with Quadro NVS 160M running
Ubuntu 12.04. The workaround in #14 fixed the problem so now I can
switch between profiles.
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FWIW, I had the exact same problem and your python edit has fixed it.
I'm on a Lenovo Thinkpad W520 with an Nvidia Quadro 1000M in Discrete
Mode.
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Same problem on F16 (x86_64) with Thinkpad W520 (set to discrete, using
2 external and internal off)...
After playing around a bit I found in my case decode (in minx.py) is
getting down to the unpack call with s0I format and 4 null bytes of
data, but the sz is being set to 1. So, the unpack
Er, so, for a quick workaround I stuck a sanity check to reset sz to the
necessary format size if it was too low, and then things seem to
consistently work for me (sorry, not a python guy)...
--- /usr/share/disper/src/nvidia/minx.py2012-01-17 14:13:47.0
-0700
+++
Now, that's not a proper solution (should check the data length is long
enough), but hopefully it helps identify the issue of why sz isn't
getting set properly. (And sorry for the comment spam, as edit would be
nice.)
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After reading a bit about what unpack is doing: At least I'm running on
64 bit. If this holds for the others as well, this might help in
figuring out what's going on.
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Same issue on Ubuntu 12.04 Beta 2 with disper 0.3.0-1 and a GeForce 320M
on a MacBook Pro.
I'm using autorandr/autodisper to control disper. The first switch
worked fine, after that the problem occured.
** Also affects: disper (Ubuntu)
Importance: Undecided
Status: New
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: disper (Ubuntu)
Status: New = Confirmed
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Title:
Thanks everyone for adding your debug information! It seems to be a
fairly hard problem. I'll try to look into it when I have the time.
Please feel free to add more debugging info when you think it would be
useful.
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