| Proyecto: | Trisquel |
| Componente: | Kernel/drivers |
| Categoría: | informe de fallo |
| Prioridad: | critical |
| Asignado: | No asignado |
| Estado: | closed |
After upgrading to 4.0, I am unable to boot up Trisquel. Help!
I select Trisquel from the GRUB menu and then I see a black screen with extremely fast-scrolling text displaying the same error message repeatedly. I press ESC to stop the scrolling. The text mentions DRM and radeon and an inability to lock memory, so I am assuming it is somehow related to the deblobbed driver for my video card (Mobility Radeon HD 3400).
This is a MAJOR bug and I am disappointed that Trisquel 4.0 released with this problem.
This problem did not exist for me in the earlier beta of Taranis, but first appeared in the RC. From a LiveUSB, I could ESC and then Alt+F4 and still boot up. But with a hard install, I can't.
I seem to have the same problem as the one here: http://trisquel.info/en/issues/2377. I also saw a Lubuntu logo.
This is most definitely related to that other issue I commented on, just a few days ago: http://trisquel.info/en/issues/2268
I've installed Taranis from the same USB flash drive I mentioned, just a few hours ago. The issue remains.
Unlike AndrewT, I'm able to boot by waiting about 15 seconds, watching the messages pour. The same thing happens on shutdown. So far, I've done 3 reboots with the new system. The second reboot did enter what seemed like an endless cycle of the same error. After waiting several minutes I did a hard reboot. The third reboot was successful, minus the pouring error-messages.
In the GRUB menu, press "e", select the line that begins with "kernel" and press "e" again. Add the text "vga=791 nomodeset" at the end of the line. Now boot.
To remove the leftover Lubuntu boot splash, open a terminal and enter:
sudo apt-get remove --purge lubuntu-plymouth-theme
Hi Andrew, I just happened to be asking in the Spanish forum about the same issue (http://trisquel.info/es/forum/registro-de-mensajes-de-error-al-arrancar-el-sistema). Once you have inserted the line in Grub, how do you exit from editing mode? Do you you just type it and reboot (e.g. ctrl+alt+esc)?
Thanks.
Hi again, I have found a page on the Ubuntu wiki dealing with this problem (https://wiki.ubuntu.com/FrameBuffer). First, just indicate that the line you refer to should be written without quotes (I would have written it with quotes!). Then, as it is explained at least on that wiki, that change would be temporary (you need to edit Grub every time you boot). Finally, the number depends on your screen resolution (791 is for 1024x768 at 16 color depth), different resolutions and color depths would require different figures -there is a table on the wiki-.
Hi again, the "solution" which finally worked for me was to edit the line corresponding to the booting kernel in /boot/grub/grub.cfg (the second line from the bottom in the first entry for Grub's menu list). The problem seems to be caused because system tries to display the splash screen with the right resolution -which it seems unable to achieve-, so I deleted "quiet splash" from the line, leaving it as under "recovery mode", that is, without splash. It will probably be necessary to repeat this operation on next kernel update but hopefully developers will have already found a solution before that time ;). Hope it also works for others as well.
Thanks flop. The drm:radeon error messages on startup and shutdown stopped for me once I deleted "quiet splash".
Fixed, duplicate of http://trisquel.info/es/issues/2268