reassign 703134 src:linux severity 703134 normal thanks On Freitag, 15. März 2013, Damien wrote: > Package: base > Severity: important > > Dear Maintainer, > > I've been unable to change the screen brightness today, on a Dell XPS M1710 > laptop. It stays dim. When changing from a virtual terminal to X, the > screen is bright briefly, but immediately dims again. During boot, the > brightness is correct for Grub but dims during the boot process. > > If I use the brightness keys to set the brighness to the minimum value, the > screen doesn't brighten when I change to the graphical desktop from a text > console (ie. ctrl+alt+f1), but when I set it to maximum it becomes bright > for about 1/4 second when I change to the graphical desktop. > > The brightness keys don't work, nor does writing to > /sys/class/backlight/acpi_video0/backlight. > > I've only seen this today, so maybe it's related to these package updates: > > Start-Date: 2013-03-15 17:02:14 > Upgrade: xserver-xorg-video-ati:amd64 (6.14.4-7, 6.14.4-8), > gstreamer0.10-alsa:a md64 (0.10.36-1, 0.10.36-1.1), > linux-image-3.2.0-4-amd64:amd64 (3.2.35-2, 3.2.39 -2), > linux-headers-3.2.0-4-amd64:amd64 (3.2.35-2, 3.2.39-2), > linux-headers-3.2.0 -4-common:amd64 (3.2.35-2, 3.2.39-2), > libgstreamer-plugins-base0.10-0:amd64 (0.1 0.36-1, 0.10.36-1.1), > linux-libc-dev:amd64 (3.2.35-2, 3.2.39-2), xserver-xorg-vi > deo-radeon:amd64 (6.14.4-7, 6.14.4-8), gstreamer0.10-plugins-base:amd64 > (0.10.36 -1, 0.10.36-1.1) > End-Date: 2013-03-15 17:03:02 > > I don't know whether the brightness controls worked before as the screen > was always bright enough. > > I think this is the relevant part of 'lshw': > > *-display > description: VGA compatible controller > product: G71 [GeForce Go 7950 GTX] > vendor: NVIDIA Corporation > physical id: 0 > bus info: pci@0000:01:00.0 > version: a1 > width: 64 bits > clock: 33MHz > capabilities: pm msi pciexpress vga_controller bus_master > cap_list rom configuration: driver=nouveau latency=0 > resources: irq:16 memory:ed000000-edffffff > memory:d0000000-dfffffff memory:ee000000-eeffffff ioport:ef00(size=128) > memory:efe00000-efe1ffff > > Let me know if you need any more information. > > -- System Information: > Debian Release: 7.0 > APT prefers testing > APT policy: (500, 'testing') > Architecture: amd64 (x86_64) > > Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores) > Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash
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