This bugg I've enctountered since 12.04 until 13.10 they're workarounds but
would be nice to be solved since it is there for a long long time.
I have encountered it on a HP 635 widh AMD 6310 integrated graphic card.
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Wrestle
See : http://askubuntu.com/questions/79983/screen-brightness-resets-to-
minimum-after-every-reboot
For a workaround.
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I came across a suggestion to a brightness issue on a different machine
that was fixed by setting GRUB_CMDLINE_LINUX="" to
GRUB_CMDLINE_LINUX="acpi_os_name="Microsoft Windows XP"". Apparently
fooling the bios into thinking its running Windows frees up more
facilities including control of brightness
My hardware:
Intel: $ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 02)
ATI: $ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 02)
01:00.0 VGA comp
Note that the problem is unrelated to ATI. I have access to two G62. One
of them has both an integrated Intel graphics card and an ATI Radeon.
The other has just the Intel card. Both suffer the same problem since
Oneiric (and persisting in Precise).
Model without ATI:
$ lspci|grep VGA
00:02.0 VGA
By sheer coincidence (what are the odds?), I happen to have 2 optically
identical HP G62's, one with a Intel-card and one equipped with ATI.
Both suffer from the same brightness problem, very weird indeed. The
remark of Ian at #10 might be correct: maybe the drivers are mixed up,
in a way neither o
Bug is still present in 12.10 Beta 1. I have managed an ACPI work around
but it is not satisfactory because it leads to overheating and a battery
that lasts about 15 minutes! There must be thousands of these HP intel
driver laptops affected.
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This issue a serious issue which is still affecting users as of 20/08/12
on Ubuntu 12.04.
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Title:
Ubuntu starts with
I get a complete blank screen with HP G62 on boot. Even if fiddle to get
a visible screen it is restricted to 1024 x 768 so there is definitely
something wrong driver installation wise. My hardware reports intel
display
description: VGA compatible controller
product: Core
I always have this issue while booting without AC. Tried the kernel boot
option workaround but that didn't help. Have Intel gfx.
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I have an HP G62 with video card Ati 5470 and I'm using the open source
driver..so I think this bug doesn't affect only xorg-video-intel..and it
also runs hot very soon, but this was just inserted in an other bug..it
doesn't happen with the proprietary driver, but there are many other
bugs using th
As workaround I currently use kernel option acpi_brightness=vendor. Now startup
brightness is equal to 100% :-)
And if display goes dim after inactivity timeout brightness is not restored and
stayes 0%. But this problem handles keyboard shortcuts for increasing
brightness with xbacklight.
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Y
** Changed in: gnome-settings-daemon (Ubuntu)
Status: New => Confirmed
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Title:
Ubuntu starts with lowest brig
The X driver doesn't control brightness. Might be an issue in the
userspace daemon. Or some ACPI quirkiness.
** Package changed: xserver-xorg-video-intel (Ubuntu) => gnome-settings-
daemon (Ubuntu)
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Confirmed => New
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Possibly dupe of 872932... similar symptoms around the same time frame.
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Title:
Ubuntu starts with lowest brightness
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