Mostafa Shahverdy wrote on 06/02/16 14:37: > On Thu, Jun 02, 2016 at 09:38:20AM +0200, Jörg-Volker Peetz wrote: >> Mostafa Shahverdy wrote on 06/01/16 21:02: >>> On Mon, May 30, 2016 at 05:04:48PM +0200, Jörg-Volker Peetz wrote: >>>> >>>> But xserver-xorg-video-radeon would be the right driver to use. Now you're using >>>> the much simpler vesa driver. >>>> >>>> The Xorg.0.log file shows that X is searching for the ati driver (package >>>> xserver-xorg-video-ati) which will then use the radeon driver from the >>>> xserver-xorg-video-radeon package. >>>> Try the ati package and if it fails or not, let's look into the contents >>>> of the >>>> Xorg.0.log file of that again. >>>> >>> Well, after some struglings I could make it load Radeon driver, and I >>> can only get 1920x1080 though. Have a look at my xorg.log again please. >>> >> >> Hi Mostafa, >> >> your log file shows that your card ("Chipset") is detected as Radeon HD 5450 >> (driver r600) with VRAM of 921355K and three outputs (HDMI-0, DVI-0, VGA-0). >> It supports the "detailed timing": >> clock: 185.6 MHz Image Size: 677 x 290 mm >> h_active: 2560 h_sync: 2624 h_sync_end 2688 h_blank_end 2784 h_border: 0 >> v_active: 1080 v_sync: 1083 v_sync_end 1093 v_blanking: 1111 v_border: 0 >> >> But then it lists "probed modes for output HDMI-0" >> with maximum "1920x1080"x60.0. >> >> The monitor screen resolutions via DDC is supporting "2560x1080 @ 66.7 kHz". >> >> Then it says "Allocate new frame buffer 1920x1080 stride 1920". >> >> This is somehow confusing for me. >> >> >> What is the output of the command "xrandr" when X is running? > > 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 >> 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 >> >> 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? >> How did you achieve the 1920x1080 setup? > Just Gnome settings using display option. Also arandr doesn't show a > better resolution. >> >> Side notes: >> For the moment I would remove every irrelevant xserver-xorg-video package >> from >> the computer with these commands: >> apt-mark manual xserver-xorg-video-ati >> apt-get purge xserver-xorg-video-all >> >> Do you have aptitude installed? > I've tried to remove every possible drivers. Currently I only have > radeon driver. I have aptitude, but I mostly use apt-get (can it cause > problems?) No. It's just that I#m more familiar with aptitude CLI for package management, then I would have commanded aptitude unmarkauto xserver-xorg-video-ati aptitude purge xserver-xorg-video-all aptitude purge '~c' The last command purges remains of removed packages. Regards, jvp.