Bug#452894: Brightness is reduced when switching to a VT, using 3d games or switching resolution
On 12/1/07, Brice Goglin <Brice.Goglin@ens-lyon.org> wrote:
> Diego Escalante Urrelo wrote:
> > After rebooting a few times, I have noted that it doesn't matter that
> > thinkpad-acpi is loaded.
> >
>
> Hum, surprising. Do you have any other kernel module like this one loaded?
> IIRC, thinkpad-acpi was ibm-acpi in earlier kernels.
>
Yes, you are right, the full lsmod:
diego@milkyway:~$ lsmod
Module Size Used by
i915 22432 2
drm 76020 3 i915
rfcomm 36280 0
l2cap 22432 5 rfcomm
bluetooth 49348 4 rfcomm,l2cap
button 7920 0
ac 5188 0
battery 9988 0
ipv6 236996 16
acpi_cpufreq 9096 1
cpufreq_powersave 1792 0
cpufreq_userspace 4128 0
cpufreq_stats 5120 0
cpufreq_ondemand 8300 1
freq_table 4512 3 acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
cpufreq_conservative 6888 0
reiserfs 220320 1
fuse 41908 3
dm_snapshot 16900 0
dm_mirror 20928 0
dm_mod 52160 2 dm_snapshot,dm_mirror
nvram 8488 1
ndiswrapper 173852 0
thinkpad_acpi 40364 0
loop 16932 0
pcmcia 37100 0
firmware_class 9504 1 pcmcia
snd_intel8x0 32124 4
yenta_socket 24844 1
rsrc_nonstatic 11968 1 yenta_socket
pcmcia_core 37108 3 pcmcia,yenta_socket,rsrc_nonstatic
iTCO_wdt 9924 0
snd_intel8x0m 16684 0
snd_ac97_codec 92836 2 snd_intel8x0,snd_intel8x0m
snd_pcm_oss 39200 0
snd_mixer_oss 15424 1 snd_pcm_oss
ac97_bus 2272 1 snd_ac97_codec
i2c_i801 8656 0
snd_pcm 72324 5
snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm_oss
snd_timer 21028 1 snd_pcm
snd 48324 14
snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
i2c_core 23552 1 i2c_i801
psmouse 36016 0
tsdev 7968 0
parport_pc 33828 0
parport 33960 1 parport_pc
rtc 12856 0
shpchp 31060 0
pci_hotplug 29184 1 shpchp
soundcore 7520 1 snd
serio_raw 6692 0
evdev 9312 4
pcspkr 3104 0
intel_agp 23188 1
agpgart 31912 3 drm,intel_agp
snd_page_alloc 10056 3 snd_intel8x0,snd_intel8x0m,snd_pcm
ext3 121288 1
jbd 55336 1 ext3
mbcache 8260 1 ext3
ide_cd 36416 0
cdrom 32832 1 ide_cd
ide_disk 16512 5
generic 4836 0 [permanent]
usbhid 25792 0
hid 25248 1 usbhid
piix 8868 0 [permanent]
ide_core 113764 4 ide_cd,ide_disk,generic,piix
ata_generic 7556 0
libata 115984 1 ata_generic
scsi_mod 136620 1 libata
e100 33644 0
mii 5280 1 e100
ehci_hcd 30796 0
uhci_hcd 22960 0
usbcore 125416 5 ndiswrapper,usbhid,ehci_hcd,uhci_hcd
thermal 13416 0
processor 31176 2 acpi_cpufreq,thermal
fan 4836 0
> > I tried the command again after confirming the problem was happening
> > on my current session, any of the arguments (legacy, combination,
> > kernel, native) solved the problem.
> >
>
> Any of them? But one of them should be enabled by default on X startup.
>
> What does
> xrandr --prop
> report after startup?
> Is it different if thinkpad-acpi is loaded or not?
>
Right now it says:
diego@milkyway:~$ xrandr --prop
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 1024
VGA disconnected (normal left inverted right x axis y axis)
LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
BACKLIGHT_CONTROL: native
supported: native legacy combination kernel
BACKLIGHT: 0 (0x00000000) range: (0,0)
1024x768 59.3 + 85.0 75.0* 70.1 60.0
832x624 74.6
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 59.9
720x400 85.0
640x400 85.1
640x350 85.1
I can't reboot right now, I'll mail back when I have the info.
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