Public bug reported:
When booting a generic kernel (2.6.28.11.15) X comes up fine, with 3D
accel, compiz, etc.
When booting a realtime kernel (2.6.28-3-rt), the fglrx module appears
to be loaded fine thru DKMS, but I get a corrupted screen when GDM
loads. I can switch to a VT once, which just gets me a different
corrupted screen, and I can't do anything from there, even flying blind.
Here's the output snippet from the gdm log, looked at after rebooting to the
generic kernel:
FATAL: Error inserting fglrx (/lib/modules/2.6.28-3-rt/updates/dkms/fglrx.ko):
Unknown symbol in module, or unknown parameter (see dmesg)
(EE) fglrx(0): [FB] Can not get FB MC address range.
(EE) fglrx(0): atiddxDriScreenInit failed, GPS not been initialized.
(EE) fglrx(0): XMM failed to open CMMQS connection.
[glesx] __glESXExtensionInit: No GL ES2.0 capable screen found!
Here's the kernel message I got from dmesg:
fglrx: Unknown symbol __call_bad_lock_func
Possible packages installed, related to problem:
linux-image-2.6.28-3-rt
linux-rt-headers-2.6.28-3
linux-headers-2.6.28-3-rt
fglrx-kernel-source version 2:8.600-0ubuntu
Release: Ubuntu 9.04 AMD64
Video Card: ATI Radeon 3650 PCIExpress
** Affects: ubuntu
Importance: Undecided
Status: New
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fglrx: Unknown symbol __call_bad_lock_func
https://bugs.launchpad.net/bugs/370232
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