[If the intention was not clear: this is just my data, and others
could perhaps add their data too, for users---searching what
works---and developers. "i915" or "radeon" doesn't mean a lot: there is
a huge variety of variants masquerading behing these generic names.]
One important addition below: the display connector:
On Wed, Dec 06, 2023 at 07:24:54PM +0100, tlaro...@kergis.com wrote:
> I think it should be of interest to gather data about what hardware is
> working and what hardware is not working related to X11 (this means
> then too DRMKMS).
>
> Vocabulary:
> - Integrated GPU: GPU on SoC or mother board, sharing cache
> and main memory with CPU;
> - Discrete GPU: GPU on extension card, with dedicated memory
> and connected to the CPU via some extension bus.
>
> My data:
>
> Kernel : NetBSD 10.99.10 on amd64
> note: not vanilla 10.99.10, some local modifications but that
> shouldn't change X11 behavior---only possible related video
> modification: update of sys/dev/videomode: correction of
> modelines.
>
> Userland:
> First test with native X11;
> Then switch to pkgsrc modular (present userland is modular).
>
> Integrated GPU, Intel:
> - pci:
> 0x00: 0x04028086 0x00900007 0x03800006 0x00000000
> Vendor Name: Intel (0x8086)
> Device Name: Haswell Integrated Graphics Device (0x0402)
> - kernel (drmkms): i915drmkms*;
> - freedesktop: intel (xf86-video-intel-2.99.917.20210115nb1);
> - glx works; video (mp4) rendering OK; some tiny defaults
> (lines not updated in solid blocks) in rendering but contrary
> to other reports, under more heavy load (may have to do with
> amount of main memory dedicated); firefox not tested (was not
> already compiled);
> - connected is a 20" LCD, EDID compatible, with "PreferredMode"
> set in xorg.conf;
- display connected by VGA;
> - GPUDevice is set in "Screen" section.
>
> Discrete GPU, AMD/ATI radeon:
> - pci:
> 0x00: 0x68f91002 0x00100007 0x03000000 0x00800010
> Vendor Name: ATI Technologies (0x1002)
> Device Name: Radeon HD 5000/6000/7350/8350 Series (0x68f9)
> - kernel (drmkms): radeon*;
> - freedesktop: radeon (xf86-video-ati-22.0.0);
> - glx works; firefox 117 works but without hardware acceleration;
> video (mp4) rendering OK; no perceptible default in rendering;
> - connected is a 20" LCD, EDID compatible, with "PreferredMode"
> set in xorg.conf;
- display connected by VGA;
> - GPUDevice is set in "Screen" section.
>
> What doesn't work:
>
> Trying Xorg(1) without configuration with the two GPUs doesn't work.
> As a general rule, specifying more in a customized xorg.conf gives
> better results.
>
> Bugs:
>
> When trying X11 configurations, some program (Xorg(1)?) changed
> the permissions on /dev/dri/card0: 660 -> 640. The result was that
> rendering an mp4 (with xine(1) or vlc(1)) gave images in false
> colors (at least) with a "psychedelic" rendering. If this happens
> to you, don't try to update ffmeg* and so on: verify first the
> permissions on the /dev/dri/cardX entry point.
>
> --
> Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
> http://www.kergis.com/
> http://kertex.kergis.com/
> Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
--
Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
http://www.kergis.com/
http://kertex.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
