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Tasklist

FS#16460 - [xorg-server-utils] xbacklight -inc doesn't work on Intel 945GME with KMS

Attached to Project: Arch Linux
Opened by Alexander Straube (a-st) - Sunday, 04 October 2009, 16:29 GMT
Last edited by Andrea Scarpino (BaSh) - Wednesday, 16 March 2011, 15:11 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan de Groot (JGC)
Architecture i686
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:

$ xbacklight -set 10 => works
$ xbacklight -dec 10 => works
$ xbacklight -inc 10 => doesn't work

Additional info:
* package version: extra/xorg-server-utils 7.4-7 [installed] (xorg)
* i915.modeset=1
* no output in dmesg

Steps to reproduce:

Boot with the i915.modeset=1 kernel parameter and try the steps above.

Thanks,
a-st
This task depends upon

Closed by  Andrea Scarpino (BaSh)
Wednesday, 16 March 2011, 15:11 GMT
Reason for closing:  Not a bug
Additional comments about closing:  hardware limitation, see upstream bug report
Comment by Jan de Groot (JGC) - Friday, 23 October 2009, 09:43 GMT
Status with xorg, drivers and utils from testing?
Comment by Alexander Straube (a-st) - Friday, 23 October 2009, 10:38 GMT
Yes, the whole system runs on [testing]

Comment by mattia (nTia89) - Friday, 23 October 2009, 10:47 GMT
this bug cause brightness problems ???
Comment by Thomas Dziedzic (tomd123) - Wednesday, 20 January 2010, 17:46 GMT
I can confirm this with up to date packages.
This could be related to other bugs while kms is enabled. One bug that comes to mind is, http://bugs.archlinux.org/task/17446

xorg-server-utils 7.5-3
kernel26 2.6.32.3-1
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

Comment by Jan de Groot (JGC) - Wednesday, 26 May 2010, 21:05 GMT
Is this still an issue, and if so, what exact hardware does this happen on? Any specific system/mainboard?
Comment by Thomas Dziedzic (tomd123) - Friday, 09 July 2010, 18:37 GMT
  • Field changed: Percent Complete (100% → 0%)
Reinstalled a couple of weeks ago, and I have this issue.
Comment by Thomas Dziedzic (tomd123) - Friday, 09 July 2010, 19:06 GMT
xorg-server 1.8.1.902-1
xf86-video-intel 2.11.0-2

also tried running everything from git (libgl-git,xf86-video-intel-git,...) still had the same issue

hardware is as follows:
(full "sudo lspci -v" output attached)

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device 81ef
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at d0100000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Memory at b0000000 (32-bit, prefetchable) [size=256M]
Memory at d0180000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Kernel driver in use: i915
Kernel modules: i915

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
Subsystem: Sony Corporation Device 81ef
Flags: fast devsel
Memory at 84000000 (32-bit, non-prefetchable) [disabled] [size=512K]
Capabilities: [d0] Power Management version 2
   lspci-voutput (10.4 KiB)
Comment by Jan de Groot (JGC) - Thursday, 17 February 2011, 15:33 GMT
Is this still an issue? Xorg, kernel and drivers have received several updates in the meanwhile.
Comment by Thomas Dziedzic (tomd123) - Thursday, 17 February 2011, 15:45 GMT
Yes.
I'm also experiencing this with:
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c)
Comment by Greg (dolby) - Friday, 04 March 2011, 05:43 GMT
Did anyone bother to contact upstream about this?
Comment by Thomas Dziedzic (tomd123) - Friday, 04 March 2011, 06:43 GMT
Since I'm the last person to experience this that seems to be responding, I guess I will open a BR upstream within the week.
Comment by Thomas Dziedzic (tomd123) - Wednesday, 16 March 2011, 07:34 GMT
Reported upstream: https://bugs.freedesktop.org/show_bug.cgi?id=35349

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