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- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'.
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-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1796786 Title: screen displays abnormally on the lenovo M715 with the AMD GPU (Radeon Vega 8 Mobile, rev ca, 1002:15dd) Status in HWE Next: New Status in linux package in Ubuntu: Invalid Status in linux-oem package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Status in linux-oem source package in Bionic: Fix Committed Bug description: [Impact] On the machine of Lenovo M715, there is an AMD GPU (1022:15dd rev ca), when it switchs to amdgpufb, the screen displays abnormally, we tested with a couple monitors, all of them can reproduce this issue. [Fix] Backported 3 patches from mainline kernel, all of them focus on the change of disable_vga(). After applying these 3 patches, the issue disappears. [Test Case] boot the system, run glxgears, everything works well [Regression Potential] Very low, these patches come from upstream, and I have tested them on at least 6 different lenovo machines and those machines have different AMD GPUs on them, all of them worked as well as before. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1796786/+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
