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- cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed- cosmic'.
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-cosmic -- 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/1812797 Title: [SRU] Fix Xorg crash with nomodeset when BIOS enable 64-bit fb addr Status in HWE Next: New Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Bug description: [Impact] On dual GPU platform, BIOS set frame buffer addr to 64-bit, usually when CSM=NO setting in BIOS. When no proper GPU driver loaded, Xorg driver will use the wrong fb addr, then crash. [Fix] Add 64-bit efifb support, make Xorg find the correct GPU fb addr. If still failed, use the first GPU as default. [Test] Tested on Intel and NV dual GPU platform. Works fine. [Regression Potential] Upstream fix, low risk. Verified on ThinkPad P1/P52. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1812797/+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
