APPLIED: [PATCH][SRU][Bionic] HP workstations cannot output to external monitors by dGPU

[Stefan Bader]

On 08.01.19 01:36, Khaled Elmously wrote:
> On 2019-01-07 08:13:20 , Alex Hung wrote:
>> BugLink: http://bugs.launchpad.net/bugs/1810702

Bug not nominated for Bionic, the fix committed state should have gone to the
nomination not the development task. And since the fix upstream went into
v5.0-rc1 someone should ensure that disco picks it up.

-Stefan

>>
>> [Impact]
>>
>>   HP mobile workstations are able to output to external monitors by dGPU in
>>   Windows with hybrid graphics, but this is not supported by Linux GPU
>>   drivers. As a result, this feature needs to be supported by BIOS but
>>   an _OSI string is required.
>>
>> [Fix]
>>   BIOS added solutions with _OSI string "Linux-HPI-Hybrid-Graphics" to
>>   workaround, and a patch to report _OSI("Linux-HPI-Hybrid-Graphics")
>>   is required in Linux kernel.
>>
>>   The patches are included in upstream and are cherry-picked from Linus's repo.
>>
>> [Regression potential]
>>   No regression as all but targeted firmware will not use this _OSI string
>>
>>
>> Alex Hung (1):
>>   ACPI / OSI: Add OEM _OSI string to enable dGPU direct output
>>
>>  drivers/acpi/osi.c | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> -- 
>> 2.7.4
>>
>>
>> -- 
>> kernel-team mailing list
>> kernel-team at lists.ubuntu.com
>> https://lists.ubuntu.com/mailman/listinfo/kernel-team
> 


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