I have ubuntu 11.04 with all the latest updates. I have an ATI HD 4350 graphics card and the "ATI/AMD proprietary FGLRX graphics driver" activated. The reported behaviour does not affect the functionality, its just an optical thing.

When I booted up using the desktop CD, the ubuntu boot splash was shown correctly in high resolution. Now after installation with FGLRX the dipsplay is broken (see picture).


This is what can be found in dmesg

[    8.621803] SP5100 TCO timer: SP5100 TCO WatchDog Timer Driver v0.01
[    8.621967] SP5100 TCO timer: mmio address 0xfec000f0 already in use
[    8.622650] fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies, Starnberg, GERMANY' taints kernel.
[    8.622656] Disabling lock debugging due to kernel taint

This is what MMIO means: https://en.wikipedia.org/wiki/Memory-mapped_I/O

Any idea how to get back the high-res splash?


Looks like a bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/740011

And it was even fixed on the 11th of April.

Launchpad Janitor wrote on 2011-04-11:
This bug was fixed in the package linux - 2.6.38-8.42

Check your kernel version with uname -a

If it is 2.6.38-8.42 it might be a regression so you might add your dmesg log to above bug.

Solution for now: you can blacklist SP5100_tco and the error will be gone. Blacklisting HOW TO: http://ubuntuforums.org/showthread.php?t=166624

  • Blacklisting did not solve it. I also did an update-initramfs -u. I added myself to the mentioned bug report. – mogliii May 1 '11 at 20:58
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    @Rinzwind I'm on 3.2.0-27-generic and I still have this error. This bug report is not completely relevant -- boot is not prevented, the error message just comes up. I would like to know what it means. – semitones Aug 25 '12 at 23:47

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