[Openchrome-users] problem with resume after suspend to ram with epia SP8000

[druyts pascal]

Thank you Thomas, I indeed went trough the doc but somehow ... did not 
remeber what you wrote ;-). So the problem is known and we have to wait for 
someone ready to contribute. Maybe some code could be extracted from the via 
driver because as I said, resume is working with it.

By the way, I was going trough the sources of the driver and noticed that a 
lot is related to setting the registers of the graphic card. Are those 
registers and their function documented somewhere? I was for example trying 
to undeerstand what the noscale mode was doing. I saw that it loaded other 
values in the registers, but without documentation, this looked to me like 
black magic.

It would be nice if such documentation could be collected on the openchrome 
site.

Thanks,

Pascal



>From: Thomas Hellstr?m <unichrome at shipmail.org>
>To: druyts pascal <pascal_druyts at hotmail.com>
>CC: openchrome-users at openchrome.org
>Subject: Re: [Openchrome-users] problem with resume after suspend to ram 
>with epia SP8000
>Date: Mon, 28 Nov 2005 16:45:00 +0100
>
>Hi!
>
>druyts pascal wrote:
>
>>I tried suspend to ram (S3) on the epia SP8000 with the openchrome driver 
>>(last svn version). When resuming, the graphic output is not restored 
>>correctly, it shows no image but only vertical color lines. Is this a bug 
>>or does the openchrome driver not support acpi suspend and resume?
>>
>>I also tested the via driver. With that driver, suspend and resume is 
>>working correctly. I am using the SP8000 as a frontend for MythTV and the 
>>suspend/resume is very convenient. While suspended, the box remains cool 
>>and it takes less than one second to be up and runing again --- to be 
>>compared to more than 1 minute for the full boot procedure.  With Mythtv, 
>>the only problem is that  after a suspend/resume, it is as if the remote 
>>was plugged out and in again. Therfore, lircd crashes and the remote does 
>>not work anymore after resume. As a workaround, I restared the lircd and 
>>the frontend after resuming. A better workaround I am working on is to use 
>>an 'lircd proxy' that reads from a fifo and writes to the socket 
>>/dev/lircd. I then start lircd to write on /dev/lircd1 and irw /dev/lircd1 
>> > fifo_file to feed the fifo with the output of the remote. Doing so, 
>>after a suspend, only lircd has to be restarted and mythfrontend continues 
>>to work with the remote. If someone is interested, I can post the 
>>lircd_proxy and the corresponding scripts.
>>
>>Is it planned to support acpi in the openchrome driver or is it already 
>>supported and did I miss something?
>>
>>Thank,
>>
>>Pascal
>>
>Pascal, have you read our TV-out docs?
>
>/Thomas
>
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>
>
>

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