Bug#585625:
I think this bug might very well be what I am experiencing on my HP
EliteBook 2540p too. Booting generally works well with the Squeeze
stock bigmem kernel:
$ dpkg -l linux-image-2.6.32-5-686-bigmem
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version
Description
+++-==================================-==================================-====================================================================================
ii linux-image-2.6.32-5-686-bigmem 2.6.32-30
Linux 2.6.32 for PCs with 4GB+ RAM
(But very often, randomly is black with the
linux-image-2.6.37-trunk-686-bigmem kernel from experimental when
booting)
However, with the 2.6.32 kernel I still have the black screen problem
when the laptop returns from sleep mode (I haven't tried hibernate).
Actually of two kinds: one is where the screen brightness is not
properly set which I can overcome by switching consoles with
Ctrl-Alt-F1 and then back to Ctrl-Alt-F7.
But, the other is the here filed black screen problem (after which the
only solution I found is the use the power button to shut the laptop
down).
$ uname -a
Linux toxbank53 2.6.32-5-686-bigmem #1 SMP Wed Jan 12 04:40:25 UTC
2011 i686 GNU/Linux
$ lspci | grep Graphics
00:02.0 VGA compatible controller: Intel Corporation Core Processor
Integrated Graphics Controller (rev 02)
(with -x):
00:02.0 VGA compatible controller: Intel Corporation Core Processor
Integrated Graphics Controller (rev 02)
00: 86 80 46 00 07 04 90 00 02 00 00 03 00 00 00 00
10: 04 00 00 d0 00 00 00 00 0c 00 00 c0 00 00 00 00
20: 59 50 00 00 00 00 00 00 00 00 00 00 3c 10 08 70
30: 00 00 00 00 90 00 00 00 00 00 00 00 0a 01 00 00
$ lsmod | grep i915
i915 222798 2
drm_kms_helper 18309 1 i915
drm 112720 3 i915,drm_kms_helper
i2c_algo_bit 3497 1 i915
video 14605 1 i915
i2c_core 12696 5 i915,drm_kms_helper,drm,videodev,i2c_algo_bit
button 3598 1 i915
Egon
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