Corrupted screen using radeon drivers
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Mir |
Fix Released
|
Critical
|
Unassigned | ||
xserver-xorg-video-ati (Ubuntu) |
Fix Released
|
Critical
|
Unassigned |
Bug Description
So, here's what I've done:
Step 0. Aquire a Toshiba Satellite C-660 noebook with (non-switchable, 512MB) Radeon HD5470M graphics and intel P6200 cpu.
Step 1. Do a fresh install using a 64bit saucy daily iso and a USB pendrive.
Step 2. sudo apt-get update && sudo apt-get dist-upgrade
Step 3. Follow the guide step by step to install Mir http://
Step 4. sudo restart lightdm
This produced a black screen with a blinking cursor in the top left corner and an X shaped mouse cursor.
Step 5. ctrl-alt-F2, login, sudo shutdown -r now
Steo 6. let the system reboot itself
This produced a corrupted screen, which reacts (flickers) to mouse movement, with ubuntu running fine in the background.
Step 7. ctrl-alt-F2, login, check every possible log in /var/log/ (boot.log, dmesg, Xorg.0.log, etc..), everything looks fine and dandy, no apparent errors.
At this point the following message kept spamming randomly accross all virtual terminals:
[drm:radeon_
Step 8. Write down error message
Step 9. Reboot to recovery.
Step 10. Report bug launchpad.
Step 11. (optional) Revert to X using ppa-purge
tags: | added: saucy |
Changed in mir: | |
importance: | High → Critical |
Changed in mir: | |
status: | Confirmed → Triaged |
Changed in xserver-xorg-video-ati (Ubuntu): | |
status: | New → Triaged |
importance: | Undecided → Critical |
tags: | added: radeon |
Changed in mir: | |
status: | Triaged → Fix Released |
Sounds similar to bug 1195509. But that one has intel graphics.