Activity log for bug #1796786

Date Who What changed Old value New value Message
2018-10-09 03:54:05 Hui Wang bug added bug
2018-10-09 03:55:51 Hui Wang bug added subscriber Canonical Hardware Enablement
2018-10-09 03:55:55 Hui Wang tags originate-from-1789801 sutton
2018-10-09 04:00:05 Ubuntu Kernel Bot linux (Ubuntu): status New Incomplete
2018-10-09 04:50:15 Hui Wang summary screen displays normally on the lenovo M715 with the AMD GPU (Radeon Vega 8 Mobile, rev ca, 1002:15dd) screen displays abnormally on the lenovo M715 with the AMD GPU (Radeon Vega 8 Mobile, rev ca, 1002:15dd)
2018-10-09 04:53:50 Hui Wang description Steps: 1. Installed system. 2. Verify the screen in the P2 of installation. Actual result: Screen displays abnormally, please refer to the picture in attachment. Expected result: Display should be good in all stage. [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.
2018-10-09 07:00:16 Stefan Bader nominated for series Ubuntu Bionic
2018-10-09 07:00:16 Stefan Bader bug task added linux (Ubuntu Bionic)
2018-10-09 07:00:23 Stefan Bader linux (Ubuntu): status Incomplete Invalid
2018-10-09 07:00:40 Stefan Bader linux (Ubuntu Bionic): importance Undecided Critical
2018-10-09 07:00:40 Stefan Bader linux (Ubuntu Bionic): status New In Progress
2018-10-09 07:01:19 Stefan Bader bug task added linux-oem (Ubuntu)
2018-10-09 07:01:37 Stefan Bader linux-oem (Ubuntu): status New Invalid
2018-10-23 14:46:43 Kleber Sacilotto de Souza linux (Ubuntu Bionic): status In Progress Fix Committed
2018-10-24 11:31:52 Timo Aaltonen linux-oem (Ubuntu Bionic): status New Fix Committed
2018-10-24 13:34:56 Brad Figg tags originate-from-1789801 sutton originate-from-1789801 sutton verification-needed-bionic
2018-10-25 03:52:54 Hui Wang tags originate-from-1789801 sutton verification-needed-bionic originate-from-1789801 sutton verification-done-bionic
2018-11-13 18:51:26 Launchpad Janitor linux (Ubuntu Bionic): status Fix Committed Fix Released
2018-11-13 18:51:26 Launchpad Janitor cve linked 2017-13168
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-15471
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-16658
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-9363
2018-11-14 15:15:29 Launchpad Janitor linux-oem (Ubuntu Bionic): status Fix Committed Fix Released
2018-11-15 11:16:17 Launchpad Janitor linux-oem (Ubuntu): status Invalid Fix Released
2019-03-07 15:33:38 Anthony Wong hwe-next: status New Fix Released
2019-07-24 20:54:01 Brad Figg tags originate-from-1789801 sutton verification-done-bionic cscc originate-from-1789801 sutton verification-done-bionic