Re: [igt-dev] [PATCH i-g-t] tests/kms_display_modes: Skip the negative test on MST Hub

["Modem, Bhanuprakash" <bhanuprakash.modem@intel.com>]

On Thu-03-08-2023 11:16 pm, Lisovskiy, Stanislav wrote:
> On Fri, Jul 07, 2023 at 09:07:20PM +0530, Thasleem, Mohammed wrote:
>> Skip the test on which MST hub which support bandwidth for 2k-4k
>> and 4k-4k multi displays.
>>
>> Signed-off-by: Thasleem, Mohammed <mohammed.thasleem@intel.com>
>> ---
>>   tests/kms_display_modes.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/tests/kms_display_modes.c b/tests/kms_display_modes.c
>> index 4bebb25e..8e117695 100644
>> --- a/tests/kms_display_modes.c
>> +++ b/tests/kms_display_modes.c
>> @@ -310,6 +310,7 @@ static void run_extendedmode_negative(data_t *data, int pipe1, int pipe2)
>>   
>>   	igt_require(i915_pipe_output_combo_valid(display));
>>   	ret = igt_display_try_commit2(display, COMMIT_ATOMIC);
>> +	igt_skip_on_f(ret == 0, "MST Hub supports bandwidth on multi display\n");
> 
> Hi Mohammed,
> 
> How do we know if it is MST hub here?

Valid question.

Not sure, but I think there is no way to identify the connected MST 
topology as "Daisy chain" or "Hub"

- Bhanu

> 
>>   	igt_assert(ret != 0 && errno == ENOSPC);
>>   }
>>   
>> -- 
>> 2.34.1
>>