From: owner@bugs.debian.org   
      
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   Your message dated Thu, 06 Nov 2025 21:59:07 +0100 (CET)   
   with message-id <20251106205907.790C0BE2EE7@eldamar.lan>   
   and subject line Closing this bug (BTS maintenance for src:linux bugs)   
   has caused the Debian Bug report #908704,   
   regarding linux-image-4.18.0-1-amd64: Fix downgraded resolutions for Display   
   Port   
   to be marked as done.   
      
   This means that you claim that the problem has been dealt with.   
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   Bug report if necessary, and/or fix the problem forthwith.   
      
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   --    
   908704: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908704   
   Debian Bug Tracking System   
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   From: Ricardo Ribalda Delgado    
   To: Debian Bug Tracking System    
   Subject: linux-image-4.18.0-1-amd64: Fix downgraded resolutions for Display   
   Port   
   Message-ID: <153678436597.3176.15015897536980358299.reportbug@piling.lan>   
   X-Mailer: reportbug 7.5.0   
   Date: Wed, 12 Sep 2018 22:32:45 +0200   
   X-Debbugs-Cc: ricardo.ribalda@gmail.com   
   Delivered-To: submit@bugs.debian.org   
      
   Package: src:linux   
   Version: 4.18.6-1   
   Severity: normal   
      
   Dear Maintainer,   
      
   Some High Resolution Screens are downgraded to full HD due to DP link   
   training failures.This problem can be easily solved by allowing retries   
   during DP link training.   
      
   If the hardware is capable of running at high resolution the   
   link will be properly calibrated after 2 o 3 attempts. If the hardware   
   cannot run at that resolution the link will be downgraded in less than a   
   second.   
      
   The proposed patch is self contained and has been tested successfuly on   
   4 different kernels (4.15 - 4.18).   
      
   This bug has been replicated on multiple devices and screens and   
   notified to upstream: https://bugs.freedesktop.org/show_bug.cgi?id=106223   
      
   Unfortunately it is considered low-priority for Intel (but high-annoying   
   by the users).   
      
   Hopefully this patch will allow users to make full use of their screens   
   and I will spend less time rebuilding my kernel.   
      
   -- Package-specific info:   
   ** Version:   
   Linux version 4.18.0-1-amd64 (debian-kernel@lists.debian.org) (gcc version   
   7.3.0 (Debian 7.3.0-29)) #1 SMP Debian 4.18.6-1 (2018-09-06)   
      
   ** Command line:   
   BOOT_IMAGE=/boot/vmlinuz-4.18.0-1-amd64 root=UUID=4ac4c7fd-7b0a-   
   fc0-a4aa-e063d18bfe9f ro quiet   
      
   ** Tainted: O (4096)   
    * Out-of-tree module has been loaded.   
      
   ** Kernel log:   
   [    3.828853] usb 1-3.1.1: New USB device strings: Mfr=1, Product=2,   
   SerialNumber=0   
   [    3.828854] usb 1-3.1.1: Product: Lenovo USB Optical Mouse   
   [    3.828855] usb 1-3.1.1: Manufacturer: PixArt   
   [    3.956542] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC255:   
   line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker   
   [    3.956546] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0   
   (0x0/0x0/0x0/0x0/0x0)   
   [    3.956549] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (   
   x21/0x0/0x0/0x0/0x0)   
   [    3.956550] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0   
   [    3.956552] snd_hda_codec_realtek hdaudioC0D0:    inputs:   
   [    3.956554] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x12   
   [    3.964026] usb 1-3.1.2: new low-speed USB device number 9 using xhci_hcd   
   [    4.122473] usb 1-3.1.2: New USB device found, idVendor=04b3,   
   idProduct=3025, bcdDevice= 1.02   
   [    4.122480] usb 1-3.1.2: New USB device strings: Mfr=1, Product=2,   
   SerialNumber=0   
   [    4.122484] usb 1-3.1.2: Product: USB NetVista Full Width Keyboard   
   [    4.122488] usb 1-3.1.2: Manufacturer: CHICONY   
   [    4.233894] input: HDA Digital PCBeep as /devices/pci0000:00/   
   000:00:1f.3/sound/card0/input15   
   [    4.234952] input: HDA Intel PCH Headphone as /devices/pci000   
   :00/0000:00:1f.3/sound/card0/input16   
   [    4.235066] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pc   
   0000:00/0000:00:1f.3/sound/card0/input17   
   [    4.235176] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pc   
   0000:00/0000:00:1f.3/sound/card0/input18   
      
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