Many remain unresolved, including this.
It is happening in Linux Mint 14 w/Cinnamon.
No matter what the settings in "brightness and lock", the display will dim after about 2 minutes when idling. This does not happen when watching full screen VLC, by the way, but otherwise as soon as there is no user input for 1-2 minutes (I haven't timed it, but it is quite quick).
This is the card:
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00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Device 0645
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 42
Region 0: Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 2000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
The kernel:
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Linux XXX 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
I have tried:
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xset s off
That makes no difference.
I have enabled "dim screen to save power", no difference either, but then there is no timer option for that setting?!?
Initially, the dim function didn't work at all, so I added:
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GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor"
And the dimmer works.
What's next? What can I try to either disable the dimming or set it to 60 minutes or something? Dconf didn't reveal anything, but I could have missed it.
Lost!
