Re: SDDM lost display monitor
On Fri, Aug 7, 2015 at 7:04 PM, Facundo Aguilera <budinero@gmail.com> wrote:
> On Tue, Jul 28, 2015 at 5:29 PM, Facundo Aguilera <budinero@gmail.com> wrote:
>> Problems with nvidia too.
>>
>>> I've been studding this and got plasma 5 to kind of work, it seems the
>>> nvidia driver will not work using plasma 5 with opengl or xrender, why I
>>> have no idea, do you? Nvidia works with Sid and kde 4.
>>
>>>
>>> Plasma 5 works with the nouveau driver but only in xrender, crashes using
>>> opengl. Also I have two monitors and I'm unable to save my monitor settings,
>>> having to setup monitors on each boot. I'm willing to try different ideas to
>>> fix these problems if there is a developer working on this with some ideas
>>> for me to try?
>>>
>>
>> sddm works here with the nvidia driver, but also changes the screen
>> resolution (uses 1024x768 instead of 1440x900) and is very slow to
>> start. With kdm the screen resolution is not changed and startup speed
>> is normal.
>>
>> Plasma 5 also starts with the 1024x768 resolution. It is working with
>> the nvidia driver by changing to xrender in the kwinrc file. OpenGL
>> 2.0 is unstable and OpenGL 3.1 is very slow (for example, it takes
>> about 5 min to show the systemsettings window). I'm also unable so
>> save the monitor resolution.
>>
>
> Testing a little more, I found that nvidia driver (legacy-304xx) is
> working with the EGL OpenGL interface. GLX is not working with plasma
> 5. The other problems disappeared, I don't know why...
>
>
Obviously, this conclusion was a mistake. I found the bug related to
my problem and a workaround [1]. This problem will be present in all
nvidia304 users.
[1] kwin_x11 does not paint windows, uses 100% CPU in OpenGL mode,
under NVidia Legacy driver 304, GeForce 7025 / nForce 630a
https://bugs.kde.org/show_bug.cgi?id=343773
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