Mostafa Shahverdy wrote on 06/02/16 16:34: > On Thu, Jun 02, 2016 at 03:40:31PM +0200, Jörg-Volker Peetz wrote: >>> >>> Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 >>> HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y >> axis) 677mm x 290mm >>> 1920x1080 60.00* 50.00 59.94 30.00 29.97 >>> 1920x1080i 60.00 50.00 59.94 >>> 1680x1050 59.88 >>> 1600x900 60.00 >>> 1280x1024 75.02 60.02 >>> 1152x864 75.00 >>> 1280x720 60.00 50.00 59.94 >>> 1024x768 75.08 60.00 >>> 800x600 75.00 60.32 >>> 720x576 50.00 >>> 720x480 60.00 59.94 >>> 640x480 75.00 60.00 59.94 >>> 720x400 70.08 >>> DVI-0 disconnected (normal left inverted right x axis y axis) >>> VGA-0 disconnected (normal left inverted right x axis y axis) >>> >> >> Yes, this is strange. Did you try to fiddle with the setup of the monitor >> using >> the buttons at the monitor? Something like scaling options? >> I have no idea why xrandr doesn't show the native resolution. >> The wiki of archlinux is a good documention. See "Adding undetected >> resolutions" on >> https://wiki.archlinux.org/index.php/xrandr#Adding_undetected_resolutions >> >> something like >> >> xrandr --newmode "2569x1080_66.7" 185.6 2560 2624 2688 2784 1080 1083 1093 >> 1111 -hsync -vsync >> xrandr --addmode "2569x1080_66.7" >> xrandr --output HDMI-0 "2569x1080_66.7" >> >> using information from your Xorg.0.log > I've already tried this. Now that I can load the proper driver, I tried > it again, and after choosing the created mode using Gnome Display, I > faced a black screen saying "No Signal".
Are there some relevant messages in dmesg or .xsession-errors ? That I interpret as switching off of the GPU. What are the specifications of the graphic card regarding maximal electric energy consumption? On the web I found something like around 160 Watts. Can your power supply unit in the computer deliver that? You said in another e-mail that your computer worked with Windows but maybe the driver is better with energy saving. I use the kernel parameter "radeon.dpm=1" for saving some energy with my GPU. In the file /var/log/dmesg there appears then a lot of output regarding dpm (lines containing [drm]). >> >>>> Which kernel packages ("linux-image*") are installed? >>> linux-image-amd64 >>> linux-image-4.5.0-2-amd64 >>> linux-image-4.3.0-1-amd64 >>> linux-headers-4.5.0-2-amd64 >>> linux-headers-4.4.0-1-grsec-amd64 >> >> Which one is running? >> uname -a > Linux debian 4.5.0-2-amd64 #1 SMP Debian 4.5.4-1 (2016-05-16) x86_64 > GNU/Linux That is uptodate. >> >>>> >>>> Is there another GPU in your computer (integrated in the CPU or chipset)? >>> No, Just this one. But as I already mentioned in the thread, I was using a >>> GForce gpu before this one. >> >> May I ask, which CPU you have? > I hope this in not something related to my CPU. No, I just asked because some CPUs have builtin GPUs. Regards, jvp.