Interesting. I tried changing this machine to Nvidia-only (nouveau
driver) and the bug remains. So it's not unique to i915.
** Summary changed:
- i915: Display flickers (monitor loses signal briefly) during "flickerfree"
boot, while showing the BIOS logo on a black background
+ Display flickers
Still happening with the latest focal updates.
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https://bugs.launchpad.net/bugs/1836858
Title:
i915: Display flickers (monitor loses signal briefly) during
"flickerfree" boot, while
Or maybe you're describing bug 1861470. So please subscribe to that
instead.
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Title:
i915: Display flickers (monitor loses signal briefly)
Maybe you're using a laptop that never hit the main problem I see here,
and only hit part of the issue which was fixed by the kernel patch. But
the "why" doesn't really matter, just so long as this bug stays open
while it is still being experienced.
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@vanvugt: Why is it then that it flickers in focal but does not flicker
in eoan for me?
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Title:
i915: Display flickers (monitor loses signal
There is no "fix" for this bug. You need to ignore the previous
messages.
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Title:
i915: Display flickers (monitor loses signal briefly) during
@vanvugt: Also tested Focal on the XPS 13 9360 now, it's flickering
there. So the issue is fixed in Eoan but not in Focal. Could you push
the fix to Focal too?
** Tags removed: eoan
** Tags added: focal
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Yes, laptops don't experience this problem as much. Some not at all.
You're lucky.
The lack of Ubuntu logo will be a question for design if and when the
flicker-free option is ever enabled.
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@vanvugt No flickering for me on an XPS 13 9360 apart from the
brightness getting adjusted at the same time the spinner starts. When
the brightness is set to maximum before rebooting I don't notice
anything apart from the spinner appearing. In a perfect world the
brightness would be adjusted
** Tags removed: verification-failed
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Title:
i915: Display flickers (monitor loses signal briefly) during
"flickerfree" boot, while showing
Verification failed, but just because we linked to this bug ID
erroneously. There is no problem with the kernel update, but please stop
marking this bug as fixed.
** Changed in: linux (Ubuntu)
Status: Fix Released => Confirmed
** Tags removed: verification-needed-eoan
** Tags added:
This bug was fixed in the package linux - 5.3.0-26.28
---
linux (5.3.0-26.28) eoan; urgency=medium
* eoan/linux: 5.3.0-26.28 -proposed tracker (LP: #1856807)
* nvidia-435 is in eoan, linux-restricted-modules only builds against 430,
ubiquity gives me the self-signed modules
@Daniel, sorry, I think I created the confusion there by (re)using your
bug to request for that kernel option to be enabled, that was needed but
doesn't seem enough. The kernel change is right though so thanks kernel
team to get that uploaded!
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Now confirmed that kernel 5.4.0-9.12 does NOT fix this bug, as predicted
above.
** Changed in: linux (Ubuntu)
Status: Fix Released => Confirmed
** No longer affects: linux (Ubuntu Eoan)
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This bug was fixed in the package linux - 5.4.0-9.12
---
linux (5.4.0-9.12) focal; urgency=medium
* alsa/hda/realtek: the line-out jack doens't work on a dell AIO
(LP: #1855999)
- SAUCE: ALSA: hda/realtek - Line-out jack doesn't work on a Dell AIO
* scsi: hisi_sas: Check
This bug was fixed in the package linux - 5.3.0-26.28
---
linux (5.3.0-26.28) eoan; urgency=medium
* eoan/linux: 5.3.0-26.28 -proposed tracker (LP: #1856807)
* nvidia-435 is in eoan, linux-restricted-modules only builds against 430,
ubiquity gives me the self-signed modules
If that's the same fix as discussed above then there are three problems:
1. It's not a fix for this bug. It should not be linked to this bug.
2. It's been proposed to eoan without going to focal first.
3. I no longer have any eoan systems handy to test it. That can be
remedied easily but see 1
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
eoan' to 'verification-done-eoan'. If the problem still exists, change
the tag
** Changed in: linux (Ubuntu Eoan)
Status: New => Fix Committed
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Title:
i915: Display flickers (monitor loses signal briefly) during
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Eoan)
Importance: Undecided => Low
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** Summary changed:
- i915: Display flickers during "flickerfree" boot (BIOS logo on a black
background)
+ i915: Display flickers (monitor loses signal briefly) during "flickerfree"
boot, while showing the BIOS logo on a black background
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