Re: X11: db of working/not working

[tlaronde%kergis.com@localhost]

[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, tlaronde%kergis.com@localhost 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