Intel Graphics: SNA testing report with xorg-x11-drv-intel >= 2.20

Pedro Francisco pedrogfrancisco at gmail.com
Thu Aug 23 23:00:09 UTC 2012


On Thu, Aug 23, 2012 at 6:53 PM, Sandro Mani <manisandro at gmail.com> wrote:
>
> On 08/23/2012 07:38 PM, Pedro Francisco wrote:
>>
>> On Thu, Aug 23, 2012 at 6:13 PM, Sandro Mani <manisandro at gmail.com> wrote:
>>>
>>> Probably unrelated but similar issue, though _without_ SNA (having an
>>> intel
>>> 4500MHD, using rawhide): sometime after mid-july I have started suffering
>>> severe redrawing issues, see [1] and [2]. Unfortunately I spent a few
>>> weeks
>>> working with the discreet graphics, so I missed the version after which
>>> issues started appearing. I am now gradually testing older
>>> xorg-x11-drv-intel packages to try to identify when breakage started, I
>>> suspect it is sometime after xorg-x11-drv-intel-2.20.0-1.20120718.fc18.
>>> Issue appears only after some time, and is definitely an intel issue
>>> (switching to the AMD discreet card it works fine). Also, GTK
>>> applications
>>> are affected much more severely than Qt ones. I was hoping to gather more
>>> information before filing a bug, (at least which version causes the
>>> breakage) but since this was brought up, here it goes...
>>>
>> Ok.
>> Anyway I disabled SNA and it still happens: to recap: on
>> gnome-fallback-mode, Qt (so far: Skype, unetbootin) apps seem to have
>> refresh issues. NOT related to SNA.
>>
>> Clue 1: on unetbootin seems easier to trigger, just open it, "ISO"
>> field, click Browse, open /etc, screen should fail to refresh until
>> window moved. If it does refresh, walk "up" on file browser and retry.
>>
>> Clue 2: so Sandro, to you it's to GTK mainly? Here it's Qt only. But
>> you're on KDE and I'm on Gnome. So a better summary would be
>> "cross-desktop applications have refresh broken occasionaly". Are you
>> using Compositing? I've only hit this now that I've tried
>> gnome-fallback-mode (without compositing).
>>
>> P.S.: Fedora _17_ here.
>
> It happens both with and without compositing (actually issues are much more
> visible without compositing, possibly due to the fact that various
> compositing effects trigger more screen redraws). Btw, unetbootin: which
> file open dialog do you get, the gnome or the kde one?

qt one, but only because I use "sudo unetbootin".


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