Hi Pavel, thanks for your analysis and your time. Indeed I was also able to set the vgamem to 131072 without my Windows client crashing! That was good but the problem of the resolution to select remains. So I get a list like this: 2560 x 14402560 x 16002560 x 16002800 x 21003200 x 24003840 x 21604096 x 2160 but The resolution I want, 5120 x 1440 is not listed and auto resizing the VM only results in more black borders to the screen. So somehow I should inform the Red Hat QXL display controller to add that mode as a possiblity. In my Linux host I could do that by using Xrandr and add the resolution and the refresh rate. But in my Windows Client i do not see that option. many thanks for your efforts. I really appreciate it because the actual user feedback for Linux newbee's like myself is rather low. kind regards,
On Tue, 2020-10-06 at 13:46 +0200, Pavel Hrdina wrote: > On Mon, Oct 05, 2020 at 08:28:11PM +0200, odogg...@hotmail.com wrote: > > Hi Pavel,sorry for my late reply. Thanks for your efforts and as > matter of factI already increased the video memory in the XML > file: <video> <model type='qxl' ram='262144' > vram='262144'vgamem='65536' heads='1' primary='yes'/> <address > type='pci'domain='0x0000' bus='0x00' > slot='0x02'function='0x0'/> </video> <video> <model > type='qxl'ram='65536' vram='65536' vgamem='16384' > heads='1'/> <addresstype='pci' domain='0x0000' bus='0x00' > slot='0x09'function='0x0'/> </video>As you can see I have two > virtual monitors in the configurationfile.The above configuration is > the highest one which works. I triedmore Ram (My video card has 4GB > of Ram) but than my Win 10 instancejust does not boot (black screen). > The problem with this resolution (inthe configuration above) is that > it is listed as 4K but it does notallow the 5120 x 2560 > resolutionkind regards, > I tried to replicate your setup and on my Fedora 32 setting vgamem > to131072 did the trick for me. You can keep the ram and vram at > 262144 asthey don't affect the maximum resolution. > Pavel