Arch Linux

Azrael85

Member

Registered: 2012-05-30

Posts: 26

ERROR PCH transcoder A FIFO underrun (system not booting)

Hi all!!

I've working with my laptop most than a year without problems, but this morning when I switched it on, it doesn't boot anymore. It get stuck in this step, I made a photo with my phone:

That message appear just for a moment and then goes to black screen, after a few seconds appears again and goes black again. An infinity loop. I left that like half an hour to see if it did something else, but nothing happened.

I really think that message has been there always, but can't be sure now. The thing is that is the only that I can see now.

Using a live cd I've got my pacman log from yesterday, but I can't see anything weird:

[2014-10-06 08:57] [PACMAN] Running 'pacman -Syu'
[2014-10-06 08:57] [PACMAN] synchronizing package lists
[2014-10-06 08:57] [PACMAN] starting full system upgrade
[2014-10-06 08:58] [PACMAN] upgraded muffin (2.2.6-1 -> 2.2.6-2)
[2014-10-06 08:58] [PACMAN] Running 'pacman --color auto -Sy'
[2014-10-06 08:58] [PACMAN] synchronizing package lists
[2014-10-06 11:53] [PACMAN] Running 'pacman --color auto -U /tmp/yaourt-tmp-agustin/PKGDEST.cXV/wacom-udev-20140121-1-any.pkg.tar.xz'
[2014-10-06 11:54] [PACMAN] installed wacom-udev (20140121-1)
[2014-10-06 12:12] [PACMAN] Running 'pacman --color auto -U /tmp/yaourt-tmp-agustin/PKGDEST.Pwc/xf86-input-wacom-git-0.26.0+28-1-x86_64.pkg.tar.xz'
[2014-10-06 12:12] [PACMAN] removed xf86-input-wacom (0.26.0-1)
[2014-10-06 12:12] [PACMAN] installed xf86-input-wacom-git (0.26.0+28-1)
[2014-10-06 12:14] [PACMAN] Running 'pacman -R xf86-input-wacom-git wacom-utility-git wacom-udev kcm-wacomtablet input-wacom-dkms expresskeys-git libwacom'
[2014-10-06 12:14] [PACMAN] Running 'pacman -R xf86-input-wacom-git wacom-utility-git wacom-udev kcm-wacomtablet input-wacom-dkms expresskeys-git'
[2014-10-06 12:14] [PACMAN] removed expresskeys-git (20120130-1)
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] -------- Uninstall Beginning --------
[2014-10-06 12:14] [ALPM-SCRIPTLET] Module:  input-wacom
[2014-10-06 12:14] [ALPM-SCRIPTLET] Version: 0.23.0
[2014-10-06 12:14] [ALPM-SCRIPTLET] Kernel:  3.16.1-1-ARCH (x86_64)
[2014-10-06 12:14] [ALPM-SCRIPTLET] -------------------------------------
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] Status: Before uninstall, this module version was ACTIVE on this kernel.
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] wacom_dkms.ko:
[2014-10-06 12:14] [ALPM-SCRIPTLET]  - Uninstallation
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - Deleting from: /usr/lib/modules/3.16.1-1-ARCH/kernel/drivers/input/tablet/
[2014-10-06 12:14] [ALPM-SCRIPTLET]  - Original module
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - No original module was found for this module on this kernel.
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - Use the dkms install command to reinstall any previous module version.
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] wacom_w8001_dkms.ko:
[2014-10-06 12:14] [ALPM-SCRIPTLET]  - Uninstallation
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - Deleting from: /usr/lib/modules/3.16.1-1-ARCH/kernel/drivers/input/touchscreen/
[2014-10-06 12:14] [ALPM-SCRIPTLET]  - Original module
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - No original module was found for this module on this kernel.
[2014-10-06 12:14] [ALPM-SCRIPTLET]    - Use the dkms install command to reinstall any previous module version.
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] depmod....
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] DKMS: uninstall completed.
[2014-10-06 12:14] [ALPM-SCRIPTLET] 
[2014-10-06 12:14] [ALPM-SCRIPTLET] ------------------------------
[2014-10-06 12:14] [ALPM-SCRIPTLET] Deleting module version: 0.23.0
[2014-10-06 12:14] [ALPM-SCRIPTLET] completely from the DKMS tree.
[2014-10-06 12:14] [ALPM-SCRIPTLET] ------------------------------
[2014-10-06 12:14] [ALPM-SCRIPTLET] Done.
[2014-10-06 12:14] [PACMAN] removed input-wacom-dkms (0.23.0-1)
[2014-10-06 12:14] [PACMAN] removed kcm-wacomtablet (2.0.2-1)
[2014-10-06 12:14] [PACMAN] removed wacom-udev (20140121-1)
[2014-10-06 12:14] [PACMAN] removed wacom-utility-git (20130909-2)
[2014-10-06 12:14] [PACMAN] removed xf86-input-wacom-git (0.26.0+28-1)
[2014-10-06 12:14] [PACMAN] Running 'pacman -R xf86-input-wacom-git wacom-utility-git wacom-udev kcm-wacomtablet input-wacom-dkms expresskeys-git'
[2014-10-06 12:18] [PACMAN] Running 'pacman -S xf86-input-wacom'
[2014-10-06 12:18] [PACMAN] installed xf86-input-wacom (0.26.0-1)
[2014-10-06 12:46] [PACMAN] Running 'pacman -Syu'
[2014-10-06 12:46] [PACMAN] synchronizing package lists
[2014-10-06 12:46] [PACMAN] starting full system upgrade
[2014-10-06 12:46] [PACMAN] upgraded bash (4.3.029-1 -> 4.3.030-1)
[2014-10-06 12:46] [PACMAN] Running 'pacman --color auto -Sy'
[2014-10-06 12:46] [PACMAN] synchronizing package lists
[2014-10-06 16:33] [PACMAN] Running 'pacman -Syu'
[2014-10-06 16:33] [PACMAN] synchronizing package lists
[2014-10-06 16:33] [PACMAN] starting full system upgrade
[2014-10-06 16:33] [PACMAN] upgraded python2-pillow (2.5.3-2 -> 2.6.0-1)
[2014-10-06 16:33] [PACMAN] upgraded python2-qrencode (1.01-5 -> 1.01-7)
[2014-10-06 16:33] [PACMAN] upgraded shotwell (1:0.20.0-1 -> 1:0.20.1-1)
[2014-10-06 16:34] [PACMAN] Running 'pacman --color auto -Sy'
[2014-10-06 16:34] [PACMAN] synchronizing package lists
[2014-10-06 17:49] [PACMAN] Running 'pacman --color auto -U /tmp/yaourt-tmp-agustin/PKGDEST.1U4/expresskeys-0.4.2-2-x86_64.pkg.tar.xz'
[2014-10-06 17:49] [PACMAN] installed expresskeys (0.4.2-2)
[2014-10-06 17:55] [PACMAN] Running 'pacman -R expresskeys'
[2014-10-06 17:55] [PACMAN] removed expresskeys (0.4.2-2)

Any other log that you think could be neccesary??

And...what (and how) can I do from a live cd to try to fix whatever have happened??

Thanks in advance!!

Azrael85

Member

Registered: 2012-05-30

Posts: 26

Re: ERROR PCH transcoder A FIFO underrun (system not booting)

By the way, I can't even open a virtual terminal with CTRL-ALT-Fx, because the screen is updated every few seconds with the black screen or the text mentioned above.