Does X11 fix the frame rate?
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Since I configured my Gentoo, my UID hasn't been added to the video group. And everything was just fine.
But when I started doing some GUI programming(the library basically just using openGL for everything), I noticed that the program could not get access to DRM device
libGL error: failed to open drm device: Permission denied
Which means it couldn't access that interface to the GPU, right? Frame rate of my specific window was 450 fps(yeah, fan starts blowing real good) . When I added my UID to the video group, frame rate of that same window dropped to 60 fps, and it was pretty laggy too, but everything else is fine, even more, video playback seems to be a little more smoother.
Thus, I don't understand how anything even worked without DRM(at the time the X server wasn't even configured, I only 'now' ran X -configure and else)
And why the frame rate dropped? Can I make it higher?
x11 video gui gpu drm
edited Dec 17 at 15:24
SouravGhosh
457311
asked Dec 17 at 14:23
Dan A.
14
add a comment |
Since I configured my Gentoo, my UID hasn't been added to the video group. And everything was just fine.
But when I started doing some GUI programming(the library basically just using openGL for everything), I noticed that the program could not get access to DRM device
libGL error: failed to open drm device: Permission denied
Which means it couldn't access that interface to the GPU, right? Frame rate of my specific window was 450 fps(yeah, fan starts blowing real good) . When I added my UID to the video group, frame rate of that same window dropped to 60 fps, and it was pretty laggy too, but everything else is fine, even more, video playback seems to be a little more smoother.
Thus, I don't understand how anything even worked without DRM(at the time the X server wasn't even configured, I only 'now' ran X -configure and else)
And why the frame rate dropped? Can I make it higher?
x11 video gui gpu drm
edited Dec 17 at 15:24
SouravGhosh
457311
asked Dec 17 at 14:23
Dan A.
14
add a comment |
Since I configured my Gentoo, my UID hasn't been added to the video group. And everything was just fine.
But when I started doing some GUI programming(the library basically just using openGL for everything), I noticed that the program could not get access to DRM device
libGL error: failed to open drm device: Permission denied
Which means it couldn't access that interface to the GPU, right? Frame rate of my specific window was 450 fps(yeah, fan starts blowing real good) . When I added my UID to the video group, frame rate of that same window dropped to 60 fps, and it was pretty laggy too, but everything else is fine, even more, video playback seems to be a little more smoother.
Thus, I don't understand how anything even worked without DRM(at the time the X server wasn't even configured, I only 'now' ran X -configure and else)
And why the frame rate dropped? Can I make it higher?
x11 video gui gpu drm
edited Dec 17 at 15:24
SouravGhosh
457311
asked Dec 17 at 14:23
Dan A.
14
Since I configured my Gentoo, my UID hasn't been added to the video group. And everything was just fine.
But when I started doing some GUI programming(the library basically just using openGL for everything), I noticed that the program could not get access to DRM device
libGL error: failed to open drm device: Permission denied
Which means it couldn't access that interface to the GPU, right? Frame rate of my specific window was 450 fps(yeah, fan starts blowing real good) . When I added my UID to the video group, frame rate of that same window dropped to 60 fps, and it was pretty laggy too, but everything else is fine, even more, video playback seems to be a little more smoother.
Thus, I don't understand how anything even worked without DRM(at the time the X server wasn't even configured, I only 'now' ran X -configure and else)
And why the frame rate dropped? Can I make it higher?
x11 video gui gpu drm
x11 video gui gpu drm
edited Dec 17 at 15:24
SouravGhosh
457311
asked Dec 17 at 14:23
Dan A.
14
edited Dec 17 at 15:24
SouravGhosh
457311
asked Dec 17 at 14:23
Dan A.
14
edited Dec 17 at 15:24
SouravGhosh
457311
edited Dec 17 at 15:24
SouravGhosh
457311
edited Dec 17 at 15:24
SouravGhosh
457311
457311
asked Dec 17 at 14:23
Dan A.
14
asked Dec 17 at 14:23
Dan A.
14
asked Dec 17 at 14:23
Dan A.
14
14
add a comment |
add a comment |
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