[Debian-eeepc-devel] Bug#606763: linux-image-2.6.37-rc5-686: Screen stays blank on EeePC 701 after xscreensaver turned screen off

[Axel Beckert]

Package: linux-2.6
Version: 2.6.37~rc5-1~experimental.1
Severity: important
User: debian-eeepc-devel at lists.alioth.debian.org
Usertags: 701

The following did not happen with the 2.6.36 experimental kernel
packages, but does happen reproducibly with the new 2.6.37 package on my
ASUS EeePC 4G 701.

I'm running xscreensaver (5.11-1+b1) and it is configured to set the
display to standby after 10 Minutes and to suspend after 20
minutes. After approximately 10-20 minutes (i.e. after switching to
standby mode or switching to suspend mode -- will debiug it further),
the screen was blank and without backlight as expected, but neither
moving the mouse nor hitting a key on the keyboard (not even switching
to a virtual console with Ctrl-Alt-F1) changed something and it stayed
dark.

But pressing the EeePC's power button cleanly shuts down the computer,
so the system does not hang, just the screen doesn't come back to live
until I power cycle it (and then the first thing I see again are BIOS
messages). Since I'm currently not at home, I don't have a second
machine to ssh into the EeePC and look what's going on in detail.

-- Package-specific info:
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-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'stable'), (500, 'testing'), (110, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.36-trunk-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.37-rc5-686 depends on:
ii  cdebconf [de 0.152                       Debian Configuration Management Sy
ii  debconf [deb 1.5.37                      Debian configuration management sy
ii  initramfs-to 0.98.5                      tools for generating an initramfs
ii  linux-base   2.6.37~rc5-1~experimental.1 Linux image base package
ii  module-init- 3.12-1                      tools for managing Linux kernel mo

Versions of packages linux-image-2.6.37-rc5-686 recommends:
ii  firmware-linux-free           2.6.32-29  Binary firmware for various driver
ii  libc6-i686                    2.11.2-7   Embedded GNU C Library: Shared lib

Versions of packages linux-image-2.6.37-rc5-686 suggests:
pn  grub | lilo                   <none>     (no description available)
pn  linux-doc-2.6.37              <none>     (no description available)

Versions of packages linux-image-2.6.37-rc5-686 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
pn  firmware-ralink               <none>     (no description available)
pn  xen-hypervisor                <none>     (no description available)

-- debconf information:
  linux-image-2.6.37-rc5-686/postinst/ignoring-do-bootloader-2.6.37-rc5-686:
  linux-image-2.6.37-rc5-686/prerm/removing-running-kernel-2.6.37-rc5-686: true
  linux-image-2.6.37-rc5-686/postinst/depmod-error-initrd-2.6.37-rc5-686: false
  linux-image-2.6.37-rc5-686/postinst/missing-firmware-2.6.37-rc5-686: