[drm] enabling PCIE gen 2 link speeds. et WB enabled C'est quoi ?

Support Debian
#1

Salut
je me suis aperçu que mon kern.log était continuellement rempli de ces messages

Oct 12 16:11:00 debian kernel: [ 1920.524639] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:12:00 debian kernel: [ 1980.528439] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:13:00 debian kernel: [ 2040.533766] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:14:00 debian kernel: [ 2100.537145] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:15:00 debian kernel: [ 2160.540976] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:16:00 debian kernel: [ 2220.544889] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:17:00 debian kernel: [ 2280.548816] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:18:00 debian kernel: [ 2340.552782] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:19:00 debian kernel: [ 2400.556750] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:20:00 debian kernel: [ 2460.564760] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:20:38 debian kernel: [ 2498.227290] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:21:00 debian kernel: [ 2520.564791] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:21:42 debian kernel: [ 2562.875205] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:23:07 debian kernel: [ 2647.520901] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:23:25 debian kernel: [ 2665.822628] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:24:30 debian kernel: [ 2730.214557] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:24:44 debian kernel: [ 2745.119304] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:27:00 debian kernel: [ 2880.593431] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:27:19 debian kernel: [ 2899.646110] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:27:44 debian kernel: [ 2924.948345] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:28:45 debian kernel: [ 2985.904508] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:31:19 debian kernel: [ 3139.731097] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Oct 12 16:31:29 debian kernel: [ 3150.081917] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0

j’ai fini par comprendre que je pouvais mettre l’option dans /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash apparmor=1 security=apparmor radeon.pcie_gen2=0"

Et donc tous ces messages en moins, c’est mon disque qui me dit merci :joy:

Sauf que vu de l’utilisateur , pas de différences

C’est quoi la vitesse génération 2 PCIE, mon radeon est trop vieux pour ça??

lspci -nnk | grep -i vga -A2
01:05.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RS880M [Mobility Radeon HD 4225/4250] [1002:9712]
	Subsystem: Hewlett-Packard Company RS880M [Mobility Radeon HD 4225/4250] [103c:1443]
	Kernel driver in use: radeon
--
02:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Park [Mobility Radeon HD 5430/5450/5470] [1002:68e0]
	Subsystem: Hewlett-Packard Company Park [Mobility Radeon HD 5430/5450/5470] [103c:1443]
	Kernel driver in use: radeon
#2

il y a toujours cette séquence qui revient

Oct 12 17:19:00 debian kernel: [ 2816.131084] [drm] PCIE GART of 512M enabled (table at 0x000000000014C000).
Oct 12 17:19:00 debian kernel: [ 2816.131162] radeon 0000:02:00.0: WB enabled
Oct 12 17:19:00 debian kernel: [ 2816.131166] radeon 0000:02:00.0: fence driver on ring 0 use gpu addr 0x0000000020000c00 and cpu addr 0xffff90b152b12c00
Oct 12 17:19:00 debian kernel: [ 2816.131170] radeon 0000:02:00.0: fence driver on ring 3 use gpu addr 0x0000000020000c0c and cpu addr 0xffff90b152b12c0c
Oct 12 17:19:00 debian kernel: [ 2816.131537] radeon 0000:02:00.0: fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr 0xffffa0f50261c418
Oct 12 17:19:00 debian kernel: [ 2816.147695] [drm] ring test on 0 succeeded in 1 usecs
Oct 12 17:19:00 debian kernel: [ 2816.147699] [drm] ring test on 3 succeeded in 2 usecs
Oct 12 17:19:00 debian kernel: [ 2816.324351] [drm] ring test on 5 succeeded in 1 usecs
Oct 12 17:19:00 debian kernel: [ 2816.324404] [drm] UVD initialized successfully.
Oct 12 17:19:00 debian kernel: [ 2816.324461] [drm] ib test on ring 0 succeeded in 0 usecs
Oct 12 17:19:00 debian kernel: [ 2816.324501] [drm] ib test on ring 3 succeeded in 0 usecs
Oct 12 17:19:00 debian kernel: [ 2816.495592] [drm] ib test on ring 5 succeeded
#3

comme je ne trouve pas d’infos sur la fonction WB dans radeon j’ai réduit le niveau de journalisation des messages du noyau

dans /etc/rsyslog.conf

masquer la journalisation de tous les niveaux
#kern.* -/var/log/kern.log

et définir le niveau des messages à err ou plus grave

kern.err -/var/log/kern.log

j’ai réduit aussi le niveau de journalisation de syslog

*.err;auth,authpriv.none	-/var/log/syslog

Voila, ça ne résoud rien mais il reste tous les messages dans le fichier messages