Sur le portable de ma conjointe, je voudrais cloner l’écran sur un autre écran externe plus grand (twinview).
Il s’avère que lorsqu’on branche le cable VGA de l’écran 2, alors il affiche directement, sans aucune configuration supplémentaire, un double de l’écran 1. Mais la résolution est mal réglée (panneau de xfce caché).
Je voulais donc bricoler le tout avec xrandr, mais pas moyen, il ne détecte pas la sortie :
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1366 x 768, current 1366 x 768, maximum 1366 x 768
default connected 1366x768+0+0 0mm x 0mm
1366x768 0.0*
D’autres infos qui pourront peut-être aider :
- Debian stable
- lspci :
00:00.0 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Root Complex 00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 9839 00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device 9840 00:02.0 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 0 00:02.2 PCI bridge: Advanced Micro Devices [AMD] Family 16h Processor Functions 5:1 00:02.3 PCI bridge: Advanced Micro Devices [AMD] Family 16h Processor Functions 5:1 00:10.0 USB controller: Advanced Micro Devices [AMD] FCH USB XHCI Controller (rev 01) 00:11.0 SATA controller: Advanced Micro Devices [AMD] FCH SATA Controller [AHCI mode] (rev 40) 00:12.0 USB controller: Advanced Micro Devices [AMD] FCH USB OHCI Controller (rev 39) 00:12.2 USB controller: Advanced Micro Devices [AMD] FCH USB EHCI Controller (rev 39) 00:13.0 USB controller: Advanced Micro Devices [AMD] FCH USB OHCI Controller (rev 39) 00:13.2 USB controller: Advanced Micro Devices [AMD] FCH USB EHCI Controller (rev 39) 00:14.0 SMBus: Advanced Micro Devices [AMD] FCH SMBus Controller (rev 3a) 00:14.2 Audio device: Advanced Micro Devices [AMD] FCH Azalia Controller (rev 02) 00:14.3 ISA bridge: Advanced Micro Devices [AMD] FCH LPC Bridge (rev 11) 00:14.7 SD Host controller: Advanced Micro Devices [AMD] FCH SD Flash Controller (rev 01) 00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 0 00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 1 00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 2 00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 3 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 4 00:18.5 Host bridge: Advanced Micro Devices [AMD] Family 16h Processor Function 5 01:00.0 Network controller: Atheros Communications Inc. AR9565 Wireless Network Adapter (rev 01) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)