Ubuntu 24.10 (Oracular Oriole) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: linux (Ubuntu Oracular)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/2085456
Title:
Fix phantom monitor on some machines with kernel 6.11
Status in linux package in Ubuntu:
New
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
New
Status in linux-oem-6.11 source package in Noble:
Fix Released
Status in linux source package in Oracular:
Won't Fix
Status in linux-oem-6.11 source package in Oracular:
Invalid
Status in linux source package in Plucky:
New
Status in linux-oem-6.11 source package in Plucky:
Invalid
Bug description:
[SRU Justification]
[Impact]
There will be a confusing phantom monitor shown on the display list, but
actually no extra monitor are connected.
[Fix]
The bug is caused by the commit
https://github.com/torvalds/linux/commit/b49420d6a1aeb399e5b107fc6eb8584d0860fbd7
in 6.11. Needs to introduce the 6.12 fix
https://github.com/torvalds/linux/commit/ad604f0a4c040dcb8faf44dc72db25e457c28076.
[Test Case]
1. Make sure no external monitor connected
2. Power on the particular machine
3. Issue the command on Terminal `DISPLAY=:0 xrandr -q`.
4. Check if there's a "Unknown 23" monitor" on the display list
[Where problems could occur]
Need to check on more machines with different configurations. It only happens
on 6.11 and it only affects the SCREEN INFO displayed.
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