NACK/Cmnt: [SRU][R][PATCH 00/22] Yet another patchset for TUXEDO devices (26-08-04)

Mon Aug 10 15:24:59 UTC 2026

On 05/08/2026 00:18, Werner Sembach via kernel-team wrote:
> Buglink: https://bugs.launchpad.net/bugs/2162871
> 
> SRU Justification:
> 
> [Impact]
> 
> This is a patchset that we (TUXEDO Computers) currently apply on top of the Ubuntu 7.0 kernel to make it run smoothly on all our devices. All patches apply without conflicts to 7.0.
> 
> [Fix]
> 
> All these patches are already upstream.
> 
> [Test Plan]
> 
> We run this patchset for all our customers devices (we basically maintain our own OEM branch) so it is quite field testet. Besides that, whenever a new patch was added we did regression testing on a selection of devices.
> 
> [Where problems could occur]
> 
> The docking station fix is applying a big patchset from 7.1 to 7.0 that is to big for stable, but I think that the Ubuntu kernel could imensly profit from the better, less buggy docking station handling it provides.
> 
> [Other Info]
> 
> Audio Quriks:
> - ALSA: hda/realtek: Add quirk for TongFang X6xx45xU (currently only in torvalds/master but hopefully soon in stable) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d595255241e5fec0c94adeebf2565524398e37c5
> - ALSA: hda/realtek: Add quirk for TongFang X6SP45xU (currently only torvalds/master but hopefully soon in stable) https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=26a94400ffa4fcbeff32e23abebb83a1a20eb401
> 
> Fix set for docking stations (in 7.1, was submitted as one big connected patchset)
> - drm/i915/dp_mst: Reprobe connector if the IRQ ESI read failed https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c51348f02b19aa292b4e92b465af45503e0210b4
> - drm/i915/dp_mst: Verify the link status always the same way https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1ed0420217fa18fc44a8cba285d10645073ce1a0
> - drm/i915/dp_mst: Reuse intel_dp_check_link_state() in the HPD IRQ handler https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=db4855d90363d76cc4d6f8bf6aadadc07b7d7c3c
> - drm/i915/dp: Handle a tunneling IRQ after acking it https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=90b86782d4993da94089671723c993551cc1fb3e
> - drm/i915/dp: Handle the RX_CAP_CHANGED HPD IRQ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e55791f5b78d1e2ecba107564e2c7370b8272974
> - drm/i915/dp: Handle the DOWNSTREAM_PORT_STATUS_CHANGED event https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a6d89d46d32688943ed3a67d109a4a57d8fdb68d
> - drm/i915/dp: Don't clobber the encoder state in the HPD IRQ handler https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6997aa23db7ea1c1c062da0e9bf984465872b8d4
> - drm/i915/dp: Remove the device service IRQ handling from connector detect https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21bd63282215c515e914da4d15c137af737e115b
> - drm/i915/dp: Fix the device service IRQ DPCD_REV check https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e0f252bb36dea780971af4736622d2c7be60d122
> - drm/i915/dp: Fix the link service IRQ DPCD_REV check https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fbb003f8f722a0c7c8f409973d59dfcc8a54578c
> - drm/i915/dp: Reprobe connector if getting/acking device IRQs fails https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=288b3c518fa3e00d715c9295624dff6184735139
> - drm/i915/dp: Reprobe connector if getting/acking link service IRQs fails https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=81e4161dd8f6d3de61392041441df2214d81cc6f
> - drm/i915/dp: Return early if getting/acking device service IRQs fails https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8a21e77c6bfa0a2c6a4e8961fd668906409d0684
> - drm/i915/dp: Return early if getting/ackink link service IRQs fails https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b05655171c217d61a95838cac19deb702b166b4
> - drm/i915/dp: Read/ack sink count and sink IRQs for SST as it's done for MST https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4e50c53ccd81d91e435e1889f1b8291fac3580a
> - drm/i915/dp: Print debug message for a sink connected off request https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d036488a24d3d7feb5b6f56a1b6b76854f54847c
> - drm/i915/dp: Check SST link status while handling link service IRQs https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b9e4f0940789b75f9fc31f73d0e91812edba250
> - drm/i915/dp_mst: Reuse intel_dp_handle_link_service_irq() https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f3675d6472218fdde3e6682ab1ad59618a63e83
> - drm/i915/dp: Ack only the handled device service IRQs https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683853b166f051eba43088092d4d1d85cd8ac3cd
> - drm/i915/dp: Ack only the handled link service IRQs https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7dc457ace829e2e3efb1503afe992b5f217387c0
> 
> Eckhart Mohr (2):
>    ALSA: hda/realtek: Add quirk for TongFang X6xx45xU
>    ALSA: hda/realtek: Add quirk for TongFang X6SP45xU
> 
> Imre Deak (20):
>    drm/i915/dp_mst: Reprobe connector if the IRQ ESI read failed
>    drm/i915/dp_mst: Verify the link status always the same way
>    drm/i915/dp_mst: Reuse intel_dp_check_link_state() in the HPD IRQ
>      handler
>    drm/i915/dp: Handle a tunneling IRQ after acking it
>    drm/i915/dp: Handle the RX_CAP_CHANGED HPD IRQ
>    drm/i915/dp: Handle the DOWNSTREAM_PORT_STATUS_CHANGED event
>    drm/i915/dp: Don't clobber the encoder state in the HPD IRQ handler
>    drm/i915/dp: Remove the device service IRQ handling from connector
>      detect
>    drm/i915/dp: Fix the device service IRQ DPCD_REV check
>    drm/i915/dp: Fix the link service IRQ DPCD_REV check
>    drm/i915/dp: Reprobe connector if getting/acking device IRQs fails
>    drm/i915/dp: Reprobe connector if getting/acking link service IRQs
>      fails
>    drm/i915/dp: Return early if getting/acking device service IRQs fails
>    drm/i915/dp: Return early if getting/ackink link service IRQs fails
>    drm/i915/dp: Read/ack sink count and sink IRQs for SST as it's done
>      for MST
>    drm/i915/dp: Print debug message for a sink connected off request
>    drm/i915/dp: Check SST link status while handling link service IRQs
>    drm/i915/dp_mst: Reuse intel_dp_handle_link_service_irq()
>    drm/i915/dp: Ack only the handled device service IRQs
>    drm/i915/dp: Ack only the handled link service IRQs
> 
>   .../drm/i915/display/intel_display_types.h    |   1 +
>   drivers/gpu/drm/i915/display/intel_dp.c       | 260 ++++++++++++------
>   sound/hda/codecs/realtek/alc269.c             |   2 +
>   3 files changed, 182 insertions(+), 81 deletions(-)
> 

Rejected for the following reasons:
In the face of increased complexity with longer maintenance and 
additional pressure by the additional volume of security issues we have 
to limit what we accept as SRU. This set is for enablement and more than 
just adding an additional quirk or ID. So we are unable to take it.

But actually that should not be needed either. At least not for 
26.04/Resolute. The desktop automatically installs with the HWE stream 
enabled. So as soon as a new HWE kernel is available it will be used. 
26.10 will likely be 7.2 based and this will continue until 28.04. This 
will not help 24.04/Noble but I would not consider this a flaw. New 
hardware should better use the latest release anyhow.

-Stefan
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