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- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1877013 Title: Dell XPS 13 9300 mirror mode doesn't work sometimes with WD19TB Status in HWE Next: New Status in linux package in Ubuntu: Invalid Status in linux source package in Focal: Fix Committed Bug description: [Impact] Connect HDMI monitor on WD19TB dock and connect WD19TB to Dell XPS 13 9300, toggling the display mode to mirror sometimes got a blank screen on external monitor. [Fix] After bisect kernel and found below commit(from v5.7-rc2) improves the stability bcad588dea53 drm/i915/perf: Do not clear pollin for small user read buffers [Test] Verified on Dell XPS 13 9300 with WD19TB docking station, the fail rate becomes from 1/2 to 1/30 [Regression Potential] Low, this commit has been CC'd to stable, so we will have this soon. [Misc] OEM-5.6 has this commit from v5.6.6 stable update To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1877013/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
