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My machine is Lenovo running ubuntu 16.04 and it has two vga controller (Intel and Radeon). But only Intel shows up.

$ sudo lspci | grep "VGA" 
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)

& whenever my machine boots up it come up with following error(image in the link) causing slow boot.

Snapshot

& the code dmesg | egrep -i 'vce|error' leads to the following error:

[    1.556359] button: probe of PNP0C0D:01 failed with error -17
[    2.080041] ACPI Error: [\_SB_.PCI0.GFX0.DD02._BCL] Namespace lookup failure, AE_NOT_FOUND (20150930/psargs-359)
[    2.080048] ACPI Error: Method parse/execution failed [\_SB.PCI0.RP05.PEGP.DD02._BCL] (Node ffff88015a8fc0f0), AE_NOT_FOUND (20150930/psparse-542)
[    2.121858] radeon 0000:03:00.0: VCE init error (-22).
[   15.077591] EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
[   23.732375] usb 2-7: device descriptor read/64, error -110
[   28.002873] radeon 0000:03:00.0: VCE init error (-22).
[   38.953480] usb 2-7: device descriptor read/64, error -110
[   44.281773] usb 2-7: device descriptor read/64, error -110
[   45.127882] radeon 0000:03:00.0: VCE init error (-22).
[   59.498891] usb 2-7: device descriptor read/64, error -110
[   65.139303] usb 2-7: device not accepting address 7, error -71

What's the reason behind all these and how can I solve slow boot & not showing Radeon Graphics problem?

Nishan Rai
  • 111

1 Answers1

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I have the problem too,i spend much time to solve the problem,I'm sure that the graphic having no driver. there have somebody give some answer:

I can not find /sys/kernel/debug/vgaswitcheroo/switch

vgaswitcheroo doesn't work on 14.04 - discrete Radeon always on, Dell Vostro 3350

Above answer in BIOS Switchable Graphics mode,I can't slove my problem.i guess if you want solve the problem,you must install the graphic driver or off the Discrete Graphics.I almost don't use discrete graphics, So i change the BIOS graphic mode as UMA Graphics to off the Discrete Graphics.and then the error about radeon 0000:03:00.0: VCE init error (-22) disappeared.

and the error with usb, there have the same question: USB device not accepting address

turingmcc
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