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From: Thorsten Leemhuis <>
To: "" <>
Subject: Re: [PATCH] matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen #forregzbot
Date: Tue, 18 Jan 2022 06:27:59 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

For the record:

Below issue is fixed by:

#regzbot fixed-by: 0c248dc26e90318

TWIMC: this mail is primarily send for documentation purposes and for
regzbot, my Linux kernel regression tracking bot. These mails usually
contain '#forregzbot' in the subject, to make them easy to spot and filter.

On 19.12.21 06:09, Thorsten Leemhuis wrote:
> On 18.12.21 19:00, Z. Liu wrote:
>> Start from commit 11be60bd66d54 "matroxfb: add Matrox MGA-G200eW board
>> support", when maxvram is 0x800000, monitor become black w/ error message
>> said: "The current input timing is not supported by the monitor display.
>> Please change your input timing to 1920x1080@60Hz ...".
>> Fixes: 1be60bd66d54 ("matroxfb: add Matrox MGA-G200eW board support")
>> Cc:
>> Cc:
>> Signed-off-by: Z. Liu <>
>> ---
>>  drivers/video/fbdev/matrox/matroxfb_base.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
>> index 5c82611e93d9..236521b19daf 100644
>> --- a/drivers/video/fbdev/matrox/matroxfb_base.c
>> +++ b/drivers/video/fbdev/matrox/matroxfb_base.c
>> @@ -1377,7 +1377,7 @@ static struct video_board vbG200 = {
>>  	.lowlevel = &matrox_G100
>>  };
>>  static struct video_board vbG200eW = {
>> -	.maxvram = 0x800000,
>> +	.maxvram = 0x100000,
>>  	.maxdisplayable = 0x800000,
>>  	.accelID = FB_ACCEL_MATROX_MGAG200,
>>  	.lowlevel = &matrox_G100
> [TLDR: I'm adding this regression to regzbot, the Linux kernel
> regression tracking bot; most text you find below is compiled from a few
> templates paragraphs some of you might have seen already.]
> Hi, this is your Linux kernel regression tracker speaking.
> Thanks for the report.
> Adding the regression mailing list to the list of recipients, as it
> should be in the loop for all regressions, as explained here:
> To be sure this issue doesn't fall through the cracks unnoticed, I'm
> adding it to regzbot, my Linux kernel regression tracking bot:
> #regzbot ^introduced 11be60bd66d54
> #regzbot title fbdev: matroxfb: display black ans warns "the current
> input timing is not supported by the monitor display"
> #regzbot ignore-activity
> #regzbot link:
> Reminder: when fixing the issue, please add a 'Link:' tag with the URL
> to the report (the parent of this mail) using the redirector,
> as explained in 'Documentation/process/submitting-patches.rst'. Regzbot
> then will automatically mark the regression as resolved once the fix
> lands in the appropriate tree. For more details about regzbot see footer.
> Sending this to everyone that got the initial report, to make all aware
> of the tracking. I also hope that messages like this motivate people to
> directly get at least the regression mailing list and ideally even
> regzbot involved when dealing with regressions, as messages like this
> wouldn't be needed then.
> Don't worry, I'll send further messages wrt to this regression just to
> the lists (with a tag in the subject so people can filter them away), as
> long as they are intended just for regzbot. With a bit of luck no such
> messages will be needed anyway.
> Ciao, Thorsten (wearing his 'Linux kernel regression tracker' hat).
> P.S.: As a Linux kernel regression tracker I'm getting a lot of reports
> on my table. I can only look briefly into most of them. Unfortunately
> therefore I sometimes will get things wrong or miss something important.
> I hope that's not the case here; if you think it is, don't hesitate to
> tell me about it in a public reply. That's in everyone's interest, as
> what I wrote above might be misleading to everyone reading this; any
> suggestion I gave thus might sent someone reading this down the wrong
> rabbit hole, which none of us wants.
> BTW, I have no personal interest in this issue, which is tracked using
> regzbot, my Linux kernel regression tracking bot
> ( I'm only posting
> this mail to get things rolling again and hence don't need to be CC on
> all further activities wrt to this regression.
> ---
> Additional information about regzbot:
> If you want to know more about regzbot, check out its web-interface, the
> getting start guide, and/or the references documentation:
> The last two documents will explain how you can interact with regzbot
> yourself if your want to.
> Hint for reporters: when reporting a regression it's in your interest to
> tell #regzbot about it in the report, as that will ensure the regression
> gets on the radar of regzbot and the regression tracker. That's in your
> interest, as they will make sure the report won't fall through the
> cracks unnoticed.
> Hint for developers: you normally don't need to care about regzbot once
> it's involved. Fix the issue as you normally would, just remember to
> include a 'Link:' tag to the report in the commit message, as explained
> in Documentation/process/submitting-patches.rst
> That aspect was recently was made more explicit in commit 1f57bd42b77c:

  reply	other threads:[~2022-01-18  5:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2021-12-19  5:09 ` [PATCH] matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen Thorsten Leemhuis
2022-01-18  5:27   ` Thorsten Leemhuis [this message]
2022-02-18 14:41     ` [PATCH] matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen #forregzbot Thorsten Leemhuis

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