Public bug reported: I've got a problem with some kernel modules (probably radeon) which cause screen problems. It occurs only on internal laptop screen. I found that problem is present in all kernels released after 2019-06-09 18:25. Last kernel which works corectly is v4.19.49 2019-06-09 10:04. v5.2-rc4 2019-06-09 18:25 has this bug and also v4.19.50 2019-06-11 13:06. So I think there are some changes in all kernel packages between hour 10:04 and 18:25 that day (2019-06-09) casue future problems.
This may be problem with radeon modules cause screen goes strange when console shows "fb: switching to radeondrmfb from VESA VGA" (I remove "quiet splash" from GRUB menu). In this video I show described problem -> https://player.vimeo.com/video/382017028 I've tested those kernels: *Works correctly: v4.19/ 2018-10-22 23:50 v4.19.49/ 2019-06-09 10:04 v5.0.1/ 2019-03-10 08:30 v5.0.7/ 2019-04-05 22:40 v5.0.21/ 2019-06-04 08:28 v5.1.6/ 2019-05-31 15:32 v5.1.8/ 2019-06-09 09:29 *Not working correctly v4.14.163/ 2020-01-09 12:29 v4.19.50/ 2019-06-11 13:06 v4.19.94/ 2020-01-09 12:42 v5.0.0-37/ 2019-11-14 12:06 v5.1.9/ 2019-06-11 12:29 v5.1.10/ 2019-06-15 11:30 v5.1.11/ 2019-06-17 19:36 v5.2-rc4/ 2019-06-09 18:25 v5.2-rc5/ 2019-06-16 20:26 Quick Hardware info: * Compal FL90 * CPU: Intel Core 2 Duo T7500 * GPU: AMD Rv620 * System Description: Ubuntu 18.04.3 LTS x64 (xubuntu) * Kernel (works OK): 5.1.8-050108-generic #201906090832 SMP Sun Jun 9 08:35:40 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux ** Affects: ubuntu Importance: Undecided Status: New ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/bugs/1859352/+attachment/5319523/+files/lspci-vnvn.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1859352 Title: Graphic driver screen problem in kernels released after 2019-06-09 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1859352/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
