This bug was fixed in the package linux - 5.11.0-34.36
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linux (5.11.0-34.36) hirsute; urgency=medium
* hirsute/linux: 5.11.0-34.36 -proposed tracker (LP: #1941766)
* Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
- Revert "ACPI: resources:
Offtoppic, but just for reference: Checked the Clevo NS50MU on windows:
There 4k@60Hz is also only possible with YCbCr420 so it's no linux
specific problem, but propably some strange hardware limitation.
So this device defenetly needs this patch and there is no other fix
where 4k@60Hz would run
Ok, turns out it only works on some Intel based laptops. But for them
this is still an improvement so I vote for this patch to be keept, as it
has no downsides for other devices.
e.g. The Clevo NS50MU Barebone with an i7-1165G7 only outputs 4k@30Hz without
this patch, but 4k@60Hz with YCbCr420
** Tags removed: verification-needed-hirsute
** Tags added: verification-done-hirsute
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https://bugs.launchpad.net/bugs/1934489
Title:
Make Intel GPUs choose YCbCr420
Something seems to have broken automatic selection of ycbcr420 (Also in
mainline linux releases).
I need more time to figure out what exactly is causing this.
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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-
hirsute' to 'verification-done-hirsute'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Hirsute)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1934489
Title:
Make Intel GPUs choose YCbCr420 encoding
** Also affects: linux (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Hirsute)
Status: New => In Progress
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Groovy)
Status: New
Patchset ported, tested, and sent to kernel-team mailing list
** Description changed:
SRU Justification:
Impact:
On some setups, while the monitor and the GPU support display modes with
pixel clocks of up to 600MHz, the connector might not. This prevents RGB
encoding for 4k60Hz, but
The bug still exists on 5.11.
The Patchset just got merged after the 5.13 mainline release, so in
mainline it will be in 5.14 onwards.
** Description changed:
SRU Justification:
Impact:
On some setups, while the monitor and the GPU support display modes with
pixel clocks of up to
I'm currently resolving the minor merge conflict with ubuntu-5.8 kernel
and then test it
** Description changed:
SRU Justification:
Impact:
On some setups, while the monitor and the GPU support display modes with
pixel clocks of up to 600MHz, the connector might not. This prevents RGB
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