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| === Troubleshooting Resources === * Community support pages: * [[https://help.ubuntu.com/community/BinaryDriverHowto|Binary Driver Howto]] * [[https://help.ubuntu.com/community/HybridGraphics|Hybrid Graphics Howto]] * [[http://ubuntuforums.org/forumdisplay.php?f=326|Absolute Beginner Talk Forum]] * [[http://ubuntuforums.org/forumdisplay.php?f=332|Hardware & Laptops Support Forum]] * [[X/Debugging|X Debugging]] Handbook I. [[X/Reporting|X Reporting]] - How to create good X bug reports I. [[X/Triaging|X Triaging]] - How to ensure new X bug reports have enough info to troubleshoot I. [[X/Backtracing|X Backtracing]] - How to collect a backtrace for an X crash I. [[X/Upstreaming|X Upstreaming]] - Forwarding X bugs to their upstream project I. [[X/Glossary|X Glossary]] - Explanations for confusing terms often seen in logs and error messages I. [[X/FixingCrashes|X Crash Fixing]] - How to fix X crashes I. [[X/Quirks|X Quirks]] - Fixes for some common hardware-specific issues I. [[X/Troubleshooting|X Troubleshooting]] - How to analyze X bugs to make them solvable I. [[X/Bisecting]] - Using bisection techniques to solve regressions or backport fixes |
=== Basic Troubleshooting Resources === * [[http://ubuntuforums.org/forumdisplay.php?f=326|Absolute Beginner Talk Forum]] * [[X/Reporting|X Reporting]] - How to create good X bug reports * [[http://ubuntuforums.org/forumdisplay.php?f=332|Hardware & Laptops Support Forum]] |
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| === Advanced Topics === * [[X/Config]] - How to configure Xorg /* the page being linked to needs to have each of its links checked for currency, accuracy, validity, and if a page passes those, then for readability and phrasing */ * [[X/NonGraphicalBoot]] - Running X manually, without gdm * [[X/KernelModeSetting]] - Configuring and using KMS (in Karmic) * [[X/Rootless]] - Running X as a user process, not as the root user * [[X/InterpretingIntelGpuDump]] - Ringbuffers, batchbuffers, and the meaning of `intel_gpu_dump` output * [[X/InputCoordinateTransformation]] - How to set the mapping of an input device to a display through X * [[X/HybridGraphics]] - How to make the most of your system with hybrid graphics * [[https://launchpad.net/~xorg-edgers|XorgOnTheEdge]] - for bleeding edge packages |
=== Common Problems === <<Include(X/Troubleshooting, , from="=== Common Problems ===", to="=== Troubleshooting Techniques ===")>> |
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| === Development Foundations === * Development Documentation * [[X/Architecture]] - High level architectural overview of X.org * [[X/DriverDevelopment]] - Developing new Xorg drivers for Ubuntu * [[X/DriverBuilding]] - Building debs of upstream drivers * Quality Assurance * [[X/Testing/Touch]] - Touchscreen and multi-touch testing * [[X/Drivers]] - Current status of X drivers * [[X/Bugs]] - Analysis of collection of similar bugs * [[X/Development|Ubuntu X Development]] * [[X/SwatTeam]] - Joining the Ubuntu X.org team /* note that this is the main Ubuntu-X team page...also, it needs to be looked over for possible updates */ * [[X/Blueprints]] - Specifications of interest for X * [[X/GitUsage]] - Instructions for using git |
=== Troubleshooting Techniques === <<Include(X/Troubleshooting, , from="=== Troubleshooting Techniques ===", to="^----")>> === Configuration Recipes === <<Include(X/Config, , from="== Configuration Recipes ==", to="^=")>> === Development Topics === <<Include(X/Dev, , from="== Development Topics ==", to="^=")>> ---- CategoryXTeam<<BR>> CategoryDesktopTeam<<BR>> CategoryUbuntuTeams<<BR>> |
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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 ==="!
|
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 Recipes
General Configuration
Session Startup - .xprofile, .xsessionrc, .gnomerc
Rootless X - Running X as a user process, not as the root user
Xorg On The Edge - for bleeding edge packages
Display Configuration
Development Topics
Ubuntu-X Team - Joining the Ubuntu X.org team
Ubuntu-X Todo List - Tasks and escalated bugs needing attention by X maintainers
X Triaging - How to ensure new X bug reports have enough info to troubleshoot
X Architecture - High level architectural overview of X.org
Driver Development - Developing new Xorg drivers for Ubuntu
X Glossary - Explanations for confusing terms often seen in logs and error messages
X Blueprints - Specifications of interest for X
Using Git - Instructions for using git
X Bug Tags - Bug tagging
CategoryXTeam
CategoryDesktopTeam
CategoryUbuntuTeams
X (last edited 2016-01-10 21:04:44 by penalvch)