PROBLEM: Intel HDMI output busticated on 4.4 (regression)

Sharma, Shashank shashank.sharma at
Tue Feb 9 16:39:21 UTC 2016

Hi Nick, 

Sonika is OOO for this week. 
AFAIK about this issue, looks like the live status is not getting set for your system, on HPD. 

As per the Bspec, we must check live status before trying to read EDID. 
Is it possible for you to check with an HDMI analyzer and probe live status register ?

-----Original Message-----
From: Nick Bowler [mailto:nbowler at] 
Sent: Tuesday, February 09, 2016 10:03 PM
To: Jindal, Sonika
Cc: linux-kernel at; dri-devel at; Daniel Vetter; Sharma, Shashank
Subject: Re: PROBLEM: Intel HDMI output busticated on 4.4 (regression)

On 1/28/16, Nick Bowler <nbowler at> wrote:
> On 2016-01-21, Nick Bowler <nbowler at> wrote:
>> On 2016-01-21, Jindal, Sonika <sonika.jindal at> wrote:
>>> On 1/21/2016 8:59 AM, Nick Bowler wrote:
>>>> On 1/20/16, Nick Bowler <nbowler at> wrote:
>>>>> On 2016-01-20, Jindal, Sonika <sonika.jindal at> wrote:
>> [...]
>>>>>> Does the same system works with any other monitor?
>>>>> I'll see if I can find another to try.
>>>> I tried another monitor, and the same problem occurs.
>>> Which make are these monitors?
>>  - LG Flatron W2253V
>>  - Dell E228WFPc
>>> Do you have any other system other than G45?
>> Nothing else with Linux 4.4, unfortunately.
> Anything else you want me to try?
> This issue is still present in 4.5-rc1.


HDMI is still broken on my system in 4.5-rc3.


More information about the dri-devel mailing list