Bug#761469: xen-linux-system-3.2.0-4-amd64: xen kernel appears misconfigured for uvesafb
Package: xen-linux-system-3.2.0-4-amd64
Version: 3.2.60-1+deb7u3
Severity: important
Dear Maintainer,
Original symptom: under x11 switching tty's causes blank screen and monitor
going to sleep.
Researching indicated this could be related to having a Nvidia graphics
card as well as a missing or misconfigured uvesafb module. [1] Checking dmesg
showed the following error:
[ 4.796570] uvesafb: Getting VBE info block failed (eax=0x4f00, err=0)
[ 4.796635] uvesafb: vbe_init() failed with -22
[ 4.796688] uvesafb: probe of uvesafb.0 failed with error -22
Also /sys/bus/platform/drivers/uvesafb/uvesafb.0/vbe_modes did not exist.
When booting with the standard Debian linux kernel instead of xen tty
switching under x11 worked as expected. There were no errors in demsg output:
[ 3.275811] uvesafb: NVIDIA Corporation, GF110 Board - 12610002, Chip Rev
, OEM: NVIDIA, VBE v3.0
[ 3.385649] uvesafb: VBIOS/hardware doesn't support DDC transfers
[ 3.385651] uvesafb: no monitor limits have been set, default refresh rate
will be used
[ 3.386354] uvesafb: scrolling: redraw
[ 3.563068] uvesafb: framebuffer at 0xf1000000, mapped to
0xffffc90006680000, using 14336k, total 14336k
Also /sys/bus/platform/drivers/uvesafb/uvesafb.0/vbe_modes existed with
expected content.
This seems to indicate the Debian xen kernel has not been correctly
configured for use with the uvesafb module.
[1] https://bbs.archlinux.org/viewtopic.php?id=120326
-- System Information:
Debian Release: 7.6
APT prefers stable
APT policy: (990, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
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 xen-linux-system-3.2.0-4-amd64 depends on:
ii linux-image-3.2.0-4-amd64 3.2.60-1+deb7u3
ii xen-system-amd64 4.1.4-3+deb7u2
xen-linux-system-3.2.0-4-amd64 recommends no packages.
xen-linux-system-3.2.0-4-amd64 suggests no packages.
-- no debconf information
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