Hi, I was able to fix the problem in the local reproducer. The problem was fixed by changing the following kernel config: -# CONFIG_DRM_FBDEV_EMULATION is not set +CONFIG_DRM_FBDEV_EMULATION=y This option was not present in the older kernels because it show up in the commit: commit e8154c8f3022b417c7bdb52f31fdb1a0fc525cf6 Author: Rob Clark <rclark> Date: Tue May 17 15:59:52 2016 -0400 [drm] upstream sync to v4.5 Which appeared in the: git describe e8154c8f3022b417c7bdb52f31fdb1a0fc525cf6 kernel-3.10.0-379.el7-5158-ge8154c8 That was after the 7.2 release. I build a test kernel based on the latest z-stream kernel, they are here: http://file.rdu.redhat.com/~daolivei/BZ1452769/ Vishal, could you please deliver this test kernel to the customer to confirm that it fixes the problem? -- Daniel
Created attachment 1291900 [details] Screen shot of the test using kernel 228, it works!
(In reply to Daniel Bristot de Oliveira from comment #16) > Created attachment 1291900 [details] > Screen shot of the test using kernel 228, it works! closing as resolved
[indy@dhcp-2-106 tmp]$ grep CONFIG_DRM_FBDEV_EMULATION config-3.10.0-514.rt56.228.el6rt.x86_64 CONFIG_DRM_FBDEV_EMULATION=y [indy@dhcp-2-106 tmp]$
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2017:1647