Re: Graphic card that needs boot parameter

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On Tue, May 19, 2020 at 07:22:56AM +0200, post@xxxxxxxxxx wrote:
> Hello,
> 
> in
> https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html
> You ask
> to inform about hardware that requires the setting
> i915.invert-brightness=1.
> 
> I needed this for an quite old notebook with the following
> specifications
> 
>   lspci -s 00:02 -nn
>   00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
>   915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03)
>   00:02.1 Display controller [0380]: Intel Corporation Mobile
> 915GM/GMS/910GML
>   Express Graphics Controller [8086:2792] (rev 03)
> 
> Feel free to request additional information if need. Thanks for your
> work on the linux
> kernel and the respective documentation

Please file a new bug at
https://gitlab.freedesktop.org/drm/intel/issues/new

boot with drm.debug=0xe and attach the resulting dmesg to the bug.

Also include the ouput of these
lspci -vs 0:02.0
lspci -nvs 0:02.0

And I'd like to see a dump of the vbios. Can be done like so:
 echo 1 > /sys/devices/pci0000\:00/0000\:00\:02.0/rom 
 cat /sys/devices/pci0000\:00/0000\:00\:02.0/rom > vbios.dump
Pls attach that to the bug as well.

-- 
Ville Syrjälä
Intel
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