1 Feb
2025
1 Feb
'25
7:24 a.m.
On 1/31/25 4:44 PM, Gianluca Interlandi wrote:
I have uploaded Xorg.0.log files before and after the flashing screen:
Nothing stands out, but Felix will be better versed in Intel graphics than I.
The log only captures X startup, so you wouldn't expect later issues to be
included (generally)
There is no difference. Also, it may be an issue with memory bandwidth of this
particular card? It is a Intel 965GM. I use VMD for molecular representation.
If I choose to represent all atoms as spheres (instead of just dots), then the
screen flashes and VMD crashes. If I represent only a small number of atoms as
spheres, then it is fine.
Felix or others will have to speak to the Intel graphics limitations. It will
use memory shared with the CPU, so you may be memory limited, or depending on
resolution of "full-screen", processor limited to paint the entire screen.
I really doubt both though. I have an old Core2-Duo (E8600 at 3.3GHz) with 4GB
RAM that has the built in Intel graphics and I can run youtube at Full HD
(1920x1080?) on a 59" TV without issue. It taxes the processor to about 80%
(100% at times), but never misses a beat.
Otherwise, the video card seems to work fine. I can watch movies on youtube,
but if I select a fullscreen representation, then the video output gets slow
although the sound plays fine.
Just for completeness, on that old Dell, I've got:
$ inxi -G
Graphics:
Device-1: Intel 82G33/G31 Express Integrated Graphics driver: i915 v: kernel
Display: server: X.Org v: 21.1.15 driver: X: loaded: intel
unloaded: modesetting dri: i915 gpu: i915 resolution: 1600x900~60Hz
API: EGL v: 1.4,1.5 drivers: i915,swrast platforms: x11,surfaceless,device
API: OpenGL v: 4.5 compat-v: 2.1 vendor: mesa v: 24.3.4-arch1.1
renderer: llvmpipe (LLVM 19.1.7 128 bits)
Info: Tools: api: eglinfo,glxinfo x11: xdpyinfo, xprop, xrandr
Hopefully Felix can chime in and work a little Intel graphics magic. Good luck!
--
David C. Rankin, J.D.,P.E.