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| * [[X/Bugs]] - Analysis of collection of similar bugs * [[X/Bugs/Transitions]] - Explanation for "installing xserver-xorg-core would break existing software" * [[X/i8xxUnsupported]] - Explanation of why i845, i855, i865, etc. chips aren't supported * [[X/HybridGraphics]] - How to make the most of your system with hybrid graphics * [[X/CommonErrors]] * [[X/ErrorMessages]] * [[Bugs/AtiDriver]] |
<<Include(X/Troubleshooting, , from="=== Common Problems ===", to="=== Troubleshooting Techniques ===")>> |
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| <<Include(X/Troubleshooting, , from="#start")>> * [[X/Troubleshooting|X Troubleshooting]] - How to analyze X bugs to make them solvable * [[X/Backtracing|X Backtracing]] - How to collect a backtrace for an X crash * [[X/Bisecting]] - Using bisection techniques to solve regressions or backport fixes * [[X/Testing/Touch]] - Touchscreen and multi-touch testing * [[X/Quirks|X Quirks]] - Fixes for some common hardware-specific issues * [[X/FixingCrashes|X Crash Fixing]] - How to fix X crashes * [[X/InterpretingIntelGpuDump]] - Ringbuffers, batchbuffers, and the meaning of `intel_gpu_dump` output * [[X/DebuggingWithValgrind]] * [[X/NonGraphicalBoot]] - Running X manually, without gdm * [[X/Debugging/WirelessWithoutX|Wireless Without X]] - How to get a wireless network connection without X. * [[X/Debugging/WiredWithoutRouter|Direct Wired Without WAP]] - How to connect two laptops with direct ethernet cord. * [[https://help.ubuntu.com/community/BootOptions|BootOptions]] * [[http://wiki.cchtml.com/index.php/Ubuntu_Feisty_Installation_Guide|fglrx installation on Ubuntu]] * DebuggingUsplash * [[X/Dev/DeviceTreeHWDetection]] |
<<Include(X/Troubleshooting, , from="=== Troubleshooting Techniques ===")>> |
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Basic Troubleshooting Resources
X Reporting - How to create good X bug reports
Common Problems
Include: Nothing found for "=== Common Problems ==="!
Include: Nothing found for "=== Troubleshooting Techniques ==="!
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Identifying if the issue is a bug or not
If you aren't sure if you have encountered a software bug in Ubuntu, then you would want to seek help in determining if the issue is a bug or not from here.
If you have confirmed the issue is a bug, please read on.
Determining which type of bug you have
Not all bugs where X seems to be the root cause are in fact an X related bug. Hence, here is documentation on potential root causes:
Booting
Display Issues
i855 is Unsupported - Explanation of why i845, i855, i865, etc. chips aren't supported
General Issues
Glossary - Common error messages and terminology
X Transitions - Explanation for "installing xserver-xorg-core would break existing software"
Input Issues
Reporting a confirmed X bug to Launchpad
Initial filing of the report
First, please install the package xdiagnose.
Next, ensure you click the Yes button for attaching additional debugging information after running the following via a terminal:
ubuntu-bug xorg
Include developer information in your report
One will want to answer the following questions in order for a developer to address the issue:
- Does the report include debugging information from the relevant article relating to the reported issue?
- Is this a regression?
- Does this happen in the latest version of Ubuntu?
- Does this happen in the latest version available from upstream?
Debugging techniques
Non-Graphical Booting - Running X manually, without a display manager (like lightdm, kdm, gdm...)
Wireless Without X - How to get a wireless network connection without X.
Direct Wired Without WAP - How to connect two laptops with direct ethernet cord.
Crashes and Freezes
X Backtracing - How to collect a backtrace for an X crash
Interpreting GPU Dumps - Ringbuffers, batchbuffers, and the meaning of intel_gpu_dump output
Valgrind - Debugging memory leaks
Other Techniques
X Bisecting - Using bisection techniques to solve regressions or backport fixes
X/Testing/Touch - Touchscreen and multi-touch testing
Triaging and tagging X bugs
Please see here for more on triaging X bugs, and here for tagging.
Fixing an X crash
Other Resources
Video Resources at help.ubuntu.com
Troubleshooting Techniques
Include: Nothing found for "=== Troubleshooting Techniques ==="!
|
Identifying if the issue is a bug or not
If you aren't sure if you have encountered a software bug in Ubuntu, then you would want to seek help in determining if the issue is a bug or not from here.
If you have confirmed the issue is a bug, please read on.
Determining which type of bug you have
Not all bugs where X seems to be the root cause are in fact an X related bug. Hence, here is documentation on potential root causes:
Booting
Display Issues
i855 is Unsupported - Explanation of why i845, i855, i865, etc. chips aren't supported
General Issues
Glossary - Common error messages and terminology
X Transitions - Explanation for "installing xserver-xorg-core would break existing software"
Input Issues
Reporting a confirmed X bug to Launchpad
Initial filing of the report
First, please install the package xdiagnose.
Next, ensure you click the Yes button for attaching additional debugging information after running the following via a terminal:
ubuntu-bug xorg
Include developer information in your report
One will want to answer the following questions in order for a developer to address the issue:
- Does the report include debugging information from the relevant article relating to the reported issue?
- Is this a regression?
- Does this happen in the latest version of Ubuntu?
- Does this happen in the latest version available from upstream?
Debugging techniques
Non-Graphical Booting - Running X manually, without a display manager (like lightdm, kdm, gdm...)
Wireless Without X - How to get a wireless network connection without X.
Direct Wired Without WAP - How to connect two laptops with direct ethernet cord.
Crashes and Freezes
X Backtracing - How to collect a backtrace for an X crash
Interpreting GPU Dumps - Ringbuffers, batchbuffers, and the meaning of intel_gpu_dump output
Valgrind - Debugging memory leaks
Other Techniques
X Bisecting - Using bisection techniques to solve regressions or backport fixes
X/Testing/Touch - Touchscreen and multi-touch testing
Triaging and tagging X bugs
Please see here for more on triaging X bugs, and here for tagging.
Fixing an X crash
Other Resources
Video Resources at help.ubuntu.com
Configuration Tips
Configuration - Configuring input devices, graphics, drivers, and more
X/KernelModeSetting - Configuring and using KMS (in Karmic)
X/Rootless - Running X as a user process, not as the root user
X/InputCoordinateTransformation - How to set the mapping of an input device to a display through X
XorgOnTheEdge - for bleeding edge packages
Development Foundations
X/SwatTeam - Joining the Ubuntu X.org team
X Triaging - How to ensure new X bug reports have enough info to troubleshoot
X/Architecture - High level architectural overview of X.org
X/DriverDevelopment - Developing new Xorg drivers for Ubuntu
X/DriverBuilding - Building debs of upstream drivers
X Glossary - Explanations for confusing terms often seen in logs and error messages
X/Blueprints - Specifications of interest for X
X/GitUsage - Instructions for using git
X/DesktopWishlist - Pending Xorg changes that would benefit Ubuntu Desktop
X/KernelWishlist - Pending/desired kernel changes that would benefit Xorg
https://bugs.edge.launchpad.net/ubuntu/+source/linux/?field.tag=xorg-needs-kernel-fix - Kernel fixes needed for xorg issues
X/BetaReviewChecklist - Things to do / stuff to consider reverting around -beta
X/Tagging - Bug tagging
X/PackageNotes - One of our packaging tools makes use of this
X (last edited 2016-01-10 21:04:44 by penalvch)